What is stable gas condensate? Gas condensate: types, properties and processing. Accumulation when using gas engines

) and temperature, some gasoline-kerosene fractions and, which happens less often, higher molecular weight liquid components of oil are in the vapor state. During field development, the pressure drops several times - up to 4-8 MPa, and raw unstable condensate is released from the gas, containing, in contrast to the stable one, not only hydrocarbons C 5 and higher, but also dissolved gases of the methane-butane fraction.

With a decrease in pressure, as gas is consumed, gas condensate is released in the geological layer and disappears for the consumer. Therefore, during the operation of fields with a high content of gas condensate, hydrocarbons C 3 and higher are released from the gas produced to the surface of the earth, and the C 1 -C 2 fraction is pumped back to maintain pressure in the formation.

Resources and reserves

At the beginning of 2013, prospective resources (C3) and explored recoverable reserves (A + B + C1) of gas condensate in Russia were estimated at 2 billion tons.

Accumulation when using gas engines

Gas condensate can accumulate in automotive gas equipment. The liquid is brown-brown in color, has an unpleasant corrosive smell of benzene resins (depending on the composition of the gas combustible mixture), it can have a range of odors from a sharp acetone to the smell of tobacco smoke (this depends on the composition of additives that are added for the smell of gas). It is recommended to regularly drain from the gas regulator. It is advisable not to touch it with your hands, because it can be hazardous to health.

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// Geology, Geography and Global Energy. 2013. No. 2 (49)

Fossil

Oil and petroleum products

Renewable
and biological

Artificial

Excerpt Characterizing Gas Condensate

Rostov saw the tears filling the sovereign's eyes, and heard him, driving away, say in French to Czartorizhsky:
“What a terrible thing is war, what a terrible thing! Quelle terrible chose que la guerre!
The vanguard troops were located in front of Vishau, in view of the enemy's chain, which gave way to us at the slightest skirmish throughout the day. The emperor's gratitude was announced to the vanguard, awards were promised, and people were given a double portion of vodka. Even more merrily than last night, campfires crackled and soldiers' songs were heard.
Denisov that night celebrated his promotion to major, and Rostov, already drunk enough at the end of the feast, proposed a toast to the health of the sovereign, but “not the sovereign of the emperor, as they say at official dinners,” he said, “but to the health of the sovereign, good, a charming and great person; we drink to his health and to a sure victory over the French! "
“If we fought before,” he said, “and did not give the French descent, as at Schöngraben, what will happen now when he is in front? We will all die, we will die with pleasure for him. So gentlemen? Maybe I'm not saying that, I drank a lot; yes, I feel that way, and so do you. To the health of Alexander the first! Urrah!
- Urrah! - the enthusiastic voices of the officers sounded.
And the old captain Kirsten shouted with enthusiasm and no less sincerely than the twenty-year-old Rostov.
When the officers drank and broke their glasses, Kirsten poured others and, in one shirt and leggings, with a glass in hand, walked to the soldiers' fires and in a stately pose, waving his hand up, with his long gray mustache and white chest, visible from behind the opened shirt, stopped in the light of the fire.
- Guys, for the health of the emperor, for the victory over enemies, urrah! - he shouted to his valiant, senile, hussar baritone.
The hussars crowded together and answered in unison with a loud cry.
Late at night, when everyone had dispersed, Denisov patted his favorite Rostov on the shoulder with his short hand.
“There’s no one to fall in love with on a hike, so he’s in love,” he said.
“Denisov, don’t joke with that,” shouted Rostov, “this is such a high, such a wonderful feeling, such ...
- Ve "yu, ve" yu, d "uzhok, and" share and approve "yay ...
- No, you don’t understand!
And Rostov got up and went to wander between the fires, dreaming of what happiness it would be to die without saving his life (he did not dare to dream about this), but simply to die in the eyes of the sovereign. He really was in love with the tsar, and with the glory of Russian arms, and with the hope of a future triumph. And he was not the only one who experienced this feeling in those memorable days preceding the Battle of Austerlitz: nine-tenths of the people of the Russian army at that time were in love, albeit less enthusiastically, with their tsar and the glory of Russian arms.

Along with the usual oil and gas, mining companies extract from the bowels of the earth a not so well-known, but no less important mineral - gas condensate. At the same time, the rate of development of the gas condensate industry, both global in general and in Russia in particular, is still extremely low.

What is condensate and how is it obtained?

During drilling operations, a colorless or slightly colored liquid is formed from the gas mixture in the deposits - this is gas condensate. It is a mixture of liquid hydrocarbons. The content of the liquid part in a cubic meter of condensate ranges from 10-700 cubic centimeters (by weight - 5-10 grams per the same volume). This fraction owes its name to the mechanism of its formation - by condensation from natural gases.

Like any condensate, gaseous condensate also falls out at the moment of transition of a substance from gaseous to liquid due to a decrease in pressure and temperature. In this case, heavy hydrocarbons contained in the reservoirs act as liquefied substances. Under natural conditions, deposits of gasoline-kerosene fractions and higher molecular weight components are under pressure up to 60 MPa, while during drilling it sharply decreases. The bulk of this feedstock is recovered from gas condensate-oil and clean gas-condensate fields. Condensate, albeit in much smaller quantities, is formed during the processing of associated petroleum gas during the separation of "black gold" in industrial conditions.

Gas condensate deposits are primary and secondary. The first ones are located at depths of more than 3.5 kilometers; oil accumulations do not take part in their formation. In turn, secondary deposits arise from the reverse evaporation of oil feedstock. In addition, gas condensate deposits are classified according to the degree of saturation. Thus, a distinctive feature of saturated formations is the identity of the pressure in the subsurface and the pressure of the beginning of condensation. Unsaturated reservoirs are characterized by the level of reservoir pressure, the value of which is higher than the mark at which the condensation process begins.

The production of gas condensate is associated with certain technological difficulties. The fact is that during the transition to a liquid state, hydrocarbons remain in the rock channels, the extraction of raw materials from which is very laborious. To prevent condensate from getting stuck in the subsoil, production operators have to artificially maintain the pressure usual for deposits. Currently, no effective method has been developed to maximize condensate recovery; the technology of gas re-injection into the reservoir after its topping is used, that is, filtering out the most valuable components.

What is made of this raw material?

Gas condensate is a valuable mineral and is not inferior either in its importance to the economy or in a rich set of valuable components to pure natural gas and oil. However, in terms of composition, condensate is much closer to crude oil than to “blue fuel”. That is why producing companies must additionally indicate the amount of gas condensate in their reports on the development of hydrocarbon deposits. Although the condensate is mainly produced by the operators of gas fields, in the professional jargon it has received the famous name - "white oil".

The main areas of application of gas condensate are the production of fuels and petrochemical products. In the fuel segment, a wide range of ready-to-use fuels is produced from condensate - from popular gasoline brands to fuel for boilers. In particular, AI-80, AI-92, AI-95 gasoline is produced. Gasoline fuel, which is obtained from gas condensate, has a low detonation resistance; therefore, antiknock agents have to be additionally used in the production process.

Also, a wide-fraction fuel for diesel engines of high-speed vehicles is produced from the condensate, which can be used in a harsh climate - temperatures up to minus 30 degrees Celsius. In addition, gas condensate fuel with additives is produced, suitable for use in even colder conditions. To obtain fuel for winter use, gas condensate undergoes a dewaxing procedure, otherwise the fuel has a high pour point and cloud point, that is, it can be used only in the summer.

To meet the needs of industrial and municipal enterprises in fuel, technical propane, butane and their mixtures are produced from condensate. In the petrochemical sector, gas condensate feedstock acts as a base for the production of aromatic hydrocarbons (xylene, oluene, benzene) and olefins - components for the further production of fibers, resins, rubber and plastics. Isopentane and pentane-hexane fractions and the same mixtures of butane and propane, separated from the condensate, act as raw materials.

From mining to processing

To obtain the aforementioned products, the produced gas condensate is sent for processing. The production process involves, first of all, the transformation of unstable gas condensate into stable one. The latter differs in that it does not contain dissolved gases. Such gases - these are mainly butane and methane fractions - are formed in the composition of feedstock during production, when the pressure decreases to a level of 4–8 MPa as the main volumes of condensate are sampled.

At the processing facilities, the condensate is brought to the desired state using the degassing procedure and purification from impurities. The resulting stable raw material, depending on the place where it is produced, is divided into field (if processing is carried out near the well) and factory (sent to gas processing plants). Unstable condensate, after passing through deethanization, is transported under its own pressure along the condensate lines. After arriving at the gas processing plant, such a source material undergoes primary processing, as a result of which gasoline, diesel fuel, liquefied gases, and fuel oil are obtained.

A typical algorithm for processing unstable condensate looks like this:

After being extracted from the subsoil, the mixture is transported to a complex preparation unit.
The unit separates the condensate and the gas part.
The gas obtained as a result of separation is supplied before the tie-in into the main-type gas pipeline, and from there it is transferred to consumers.
Condensate, in turn, is pumped up to the connection of the condensate pipeline, from where it is fed to another unit designed to prepare raw materials for transportation.
The unit for the preparation of raw materials produces condensate deethanization. Refined products are distributed as follows: deethanized condensate (84%), deethanized gas (14.7%). Losses account for another 1.3%.
Further, the deethanization gas, like the separation gas, is supplied to gas pipelines and transported to consumers.
Deethanized condensate enters the condensate pipeline and is sent to the stabilization plant. Already there, the raw materials are processed to obtain liquefied gases, stable condensate and diesel fuel.
For further processing, stabilized raw materials are transported by bulk transport or pumped through special pipeline systems to petrochemical and other enterprises.

World industry market and the situation in Russia

Despite the introduction of efficient technologies for processing condensate, at the present stage of subsoil development, the volume of its production all over the world is significantly inferior to the indicators of extraction of basic hydrocarbons - oil and gas. This situation has developed historically and is due to the fact that the gas condensate industry is relatively young. For a long time, oil companies were only interested in the extraction of "black gold", while gas companies were developing traditional deposits. The need to develop gas condensate fields increases with the depletion of conventional gas blocks.

Russia, on the other hand, boasts impressive reserves of gas condensate. Explored resources and promising deposits are estimated by geologists at a total of 2 billion tons. However, the rate of development of condensate deposits is growing extremely slowly. In particular, the average annual production of recent years has fluctuated within 30 million tons, including at the shelf areas - at the level of 2.5 million tons. The growth of the rate of extraction of raw materials every year is up to 5-10% per year. Recall that Pronedra wrote earlier that Gazprom promised to increase condensate production by 10% in three years.

The increase in production, at the same time, falls mainly on the onshore blocks, while in the shelf zones its intensity decreases. The Ural Federal District is the leader among Russian regions in terms of condensate recovery, where up to 76% of this raw material is produced. The annexation of Crimea to Russia practically did not change the statistics of production - the level of production on the peninsula in the context of the all-Russian indicator does not exceed 0.16%.

Refining capacity in Russia significantly exceeds production. Russian enterprises are capable of processing more than 56 million tons of raw materials per year, but the annual volume of condensate supplies for stabilization is one and a half times less. Although the forecast for gas condensate production both in Russia and around the world as a whole is positive and provides for an annual growth of this indicator, there are certain factors that restrain the development of the industry. The main reason for the slow growth and delay in the development of new fields is the lack of specialized pipeline systems for the transportation of condensate.

In addition to the fact that Russia has failed to establish sustainable development of condensate production, as well as supplying it to the domestic market and loading national processing facilities, it is still seriously inferior to the main exporters of raw materials in terms of supply volumes. The main player in the international gas condensate market is the United States, providing almost a third of supplies. The rest of the volumes were divided among themselves by Canada, Australia, Algeria and South American states. Russian exports are still minimal. For example, the Gazprom group supplies abroad about 250 thousand to 600 thousand tons of such raw materials per year. Fluctuations in the volume of exports downward are associated with the redistribution of supply volumes in favor of the domestic market.

At a small pace, but in general, the export of this raw material from Russia is growing. There are quite real prospects for the Russian Federation to master large-scale supplies to the Asia-Pacific region, the market of which is characterized by a continuous increase in demand. The establishment of exports to Asia will also be facilitated by a purely geographical factor that minimizes transport and logistics costs.

However, the optimistic forecasts for Russia are not supported by skeptical industry analysts, who assume that the Asian market will be completely conquered by American and Australian suppliers. Attempts to stimulate and regulate the gas condensate segment in Russia, including by eliminating export duties and revising fiscal payments, are still temporary solutions and only indicate that there is currently no long-term development strategy for the industry in the country.

Despite the current situation, one cannot fail to note the positive shifts that have played in favor of the expansion of the national gas condensate business. At the current stage, the Russian condensate market depends little on external factors and remains stable. The experience of recent years has shown that even such powerful levers as currency fluctuations and changes in tax legislation do not affect the gas condensate field.

Regardless of the external shocks of recent years, Russian operators that focus on foreign buyers continue to export supplies, and enterprises interested in participating in the domestic market consistently ensure the availability of sufficient supply. The stability of the industry is facilitated by its high economic profitability. In particular, the degree of profitability of processing gas condensate is higher than that of oil.

In addition, due to production peculiarities, the volume of light oil products output at gas condensate refineries is higher than at enterprises working with oil, although, recall, oil refining in Russia is represented quite widely. Favorable initial conditions still give hope that the development of the Russian gas condensate segment will be stable, if not fast, and, consequently, the optimists' forecasts regarding the launch of the eastern direction of export may come true over time.

Any condensate is obtained after the transition of a gaseous substance to a liquid due to a decrease in pressure or temperature. In the bowels of the earth, there are not only gas, but also gas condensate deposits. When pressure and temperature decrease as a result of drilling a well, gas condensate is formed - a mixture of liquid hydrocarbons separated from the gas.

Under condensation understand the content of liquid hydrocarbons in gas in reservoir conditions (cm 3 / m 3).

The gas condensate factor is the reciprocal of the condensation ratio.

Distinguish raw and stable condensation... Crude means hydrocarbons that, under standard conditions, are in a liquid state with gaseous components dissolved in them (methane, ethane, propane, butanes). Condensate consisting only of liquid hydrocarbons (from pentanes and higher) is usually called stable under standard conditions.

By physical properties condensates are very diverse. Density condensates vary from 0.677 to 0.827 g / cm 3; refractive index 1.39 to 1.46; molecular mass - from 92 to 158.

Composition. Numerous studies have established the genetic relationship of the underlying oils (which formed) them. Condensates, like oil, consist of three types of hydrocarbons - methane, naphthenic and aromatic.

However, the distribution of these groups of hydrocarbons in condensates have the following peculiarities unlike oils:

1) the absolute content (on average) of aromatic hydrocarbons in gasoline fractions of condensates is higher than in oils;

2) there are gasoline fractions, which simultaneously contain a large amount of naphthenic and aromatic hydrocarbons;

4) the concentration of branched methane hydrocarbons is lower than the concentration of normal structures;

5) the share of ethylbenzene among the aromatic hydrocarbons of the composition C 8 H 10 falls on the average. much lower% than in oils.

Thus, condensates are composed of simpler compounds than oil. In oils, cyclopentane hydrocarbons predominate, in condensates, cyclohexane hydrocarbons. Aromatic hydrocarbons in oils are usually concentrated in high-boiling fractions, in condensates, on the contrary, in low-boiling fractions. The sulfur content in condensates ranges from 0-1.2%. Condensates may be found in individual deposits or wells, the hydrocarbon composition of which may deviate from general patterns, this is due to the geological features of a particular area.

Condensates differ markedly and by fractional composition. On average, they boil off by 60-80% up to 200C, but there are condensates (or oil-condensate mixtures), the end of boiling of which is 350-500C, containing asphaltenes.

During the development of gas condensate deposits, the composition of condensates changes. As the pressure decreases, there is a partial condensation of hydrocarbons in the formation, and this part is generally no longer extracted to the surface. As a result, there is a change in the quantitative and qualitative characteristics of the reservoir gas-condensate mixture - a change in the group HC composition. With a decrease in pressure, high-boiling fractions of condensate fall into the formation, and its density decreases. On the contrary, sometimes the density of condensates increases, which is mainly typical for the developed gas caps.

Definition of the term gas condensate

Separation of the stable gas condensates

Definition of the term gas condensate

Gas condensates are liquid mixtures of high-boiling hydrocarbons of various structures, released from natural gases during their production at the so-called gas condensate fields. In reservoir conditions, with a combination of high pressures (10-60 MPa) and temperatures, some gasoline-kerosene fractions are in the vapor state, less often - higher molecular weight liquid components of oil. During field development, the pressure drops to 4-8 MPa, and raw (unstable) condensate is released from the gas, containing, in contrast to the stable one, along with C5 and higher hydrocarbons, dissolved gases of the methane-butane fraction. With a decrease in pressure as the gas is consumed, gas condensate is released in the geological layer and, consequently, disappears for the consumer. Therefore, during the exploitation of fields with a high content of gas, hydrocarbons C3 and higher are released from the gas extracted to the surface of the earth, and the C1-C2 fraction is pumped back in order to maintain the pressure in the formation.

Gas condensate (gas condensate) is a mixture of liquid hydrocarbons (C5H12 + higher), released from natural gases during the operation of gas condensate deposits as a result of a decrease in reservoir pressure (below the pressure of the onset of condensation) and temperature. Gas condensate is used as a motor fuel and is a valuable raw material for the chemical industry.

Gas condensate is a natural mixture of low-boiling petroleum hydrocarbons, which are stored in the bowels in a gaseous state, and when cooled and reduced to atmospheric pressure (in daytime surface conditions), it decomposes into liquid (condensate) and gaseous components. Polytechnic Dictionary, Moscow: Soviet Encyclopedia, 1989.-P.105.

Gas condensate (gas condensate) is a mixture of hydrocarbons, mainly with a boiling point of 30 to 250 degrees C, condensing from natural petroleum gases during their production at gas condensate fields. In addition, gas condensate is formed during the production of natural gas itself, during pumping Natural gas through pipelines, since pumping is under pressure up to 30 MPa, and high-boiling hydrocarbons are dissolved in methane under pressure (up to 712 cm3 / m3 of methane). M3 condensate processing into high-octane and winter diesel fuel is practiced.

Gas condensate of NGL (broad fraction of light hydrocarbons) is a solution of gaseous hydrocarbons in liquid, and gaseous ones contain up to 75%, among liquid fractions with a boiling point of up to 117 ° C prevail. NGL is sometimes called unstable gas condensate. Natural gas condensate is obtained from NGL after separation of gases (propane-butane fractions). NGL processing includes additionally fractional distillation of NGLs, field of household gas separation.

Gas condensate - fraction separated from Natural gas and is a mixture of liquid hydrocarbons (containing at least 5 carbon atoms per molecule).

Gas condensate is a valuable raw material for the production of motor fuels, as well as for chemical processing of extractants (hexane fraction), benzene, cyclohexane.

Gas condensates are liquid mixtures of high-boiling hydrocarbons of various structures, released from natural gases during their production at the so-called gas condensate fields. In reservoir conditions, with a combination of high pressures (10-60 MPa) and temperatures, some gasoline-kerosene fractions are in the vapor state, less often - higher molecular weight liquid components of oil. During field development, the pressure drops to 4-8 MPa, and raw (unstable) condensate is released from the gas, containing, in contrast to the stable one, along with C5 and higher hydrocarbons, dissolved gases of the methane-butane fraction. With a decrease in pressure as the gas is consumed, gas condensate is released in the geological layer and, consequently, disappears for the consumer. Therefore, during the exploitation of fields with a high content of hydrochloric acid, hydrocarbons C3 and higher are extracted from the gas produced to the surface of the earth, and the C1-C2 fraction is pumped back in order to maintain pressure in the formation.

Gas condensates, liquid mixtures of high-boiling hydrocarbons of various structures, isolated from natural ones. when they are mined on the so-called. gas condensate fields. In reservoir conditions, with a combination of high pressures (10-60 MPa) and temperatures, some gasoline-kerosene fractions are in the vapor state, less often - higher molecular weight liquid components of oil. During field development, the pressure drops to 4-8 MPa, and raw (unstable) condensate is released from the gas, which, in contrast to the stable one, along with C5 and higher hydrocarbons, dissolved gases of the methane-butane fraction. With a decrease in pressure as the gas is consumed, gas condensate is released in the geological formation and, therefore, disappears for the consumer. Therefore, during the exploitation of fields with a high content of gas condensates, hydrocarbons C3 and higher are extracted from the extracted to the surface of the earth, and the C1-C2 fraction is pumped back to maintain pressure in the formation. Gasolines obtained from gas condensates using classical technology usually have low knock resistance. To increase it, antiknock agents are used. The yield of gas condensate fractions used as diesel fuel, ranges from 9% (Punginskoye) to 26% (Vuktylskoye field); These fractions for the majority of condensates are characterized by relatively high cloud point and pour point and can be used as fuel only in summer. To get winter diesel fuel their dewaxing is necessary.

Liquefied natural gas - liquefied under pressure and when refrigerated to facilitate storage and transport. 74.-99% consists of methane. The density is 1.9 times less than that of gasoline... Boiling point from -158 to -163C. Liquefaction ratio from 92% (economic mode; at gas distribution stations) to 95%. Foreign term - Liquefied natural gas (LNG)

Gas condensates, liquid mixtures of high-boiling hydrocarbons decomp. buildings allocated from nature. gases during their production at the so-called. gas condensate fields. In reservoir conditions with a combination of high pressures (10-60 MPa) and t-r, certain gasoline-kerosene fractions are in a vaporous state, less often - higher molar fractions. liquid components of oil. During field development, the pressure drops to 4-8 MPa, and a crude (unstable) condensate is released from the gas, containing, in contrast to the stable one, along with C5 and higher hydrocarbons, dissolved gases of the methane-butane fraction (Table 1). With a decrease in pressure as the gas is consumed, gas condensate is released into geol. reservoir and, therefore, disappears for the consumer. Therefore, during the exploitation of fields with a high content of gas condensates, hydrocarbons C3 and higher are emitted from the gas produced on the ground, and the C1-C2 fraction is pumped back to maintain pressure in the formation.

Composition of gas condensates of the main fields of the USSR (% by mass)

Characteristics of gas condensates from a number of fields in the USSR

Gas condensates are separated from gases by the method of low-temperature condensation (separation) with the use of cold obtained by throttling or expansion or on special. refrigeration plants (see Refrigeration processes). For a deeper extraction of gas condensates, the same methods (low-temperature condensation, absorption and rectification) are used as for the processing of oil and natural resources. gases (see. Natural combustible gases).

Unstable gas condensate is delivered to the purchaser via condensate pipelines under his own. pressure, and stable gas condensate through pipelines or bulk transport. Gas condensates are divided into fractions used in the production of fuels and as for petrochemicals at gas-sludge-gas pipeline plants. synthesis.

Gasolines obtained from gas condensates usually have low detonation. firmness. To increase it, antiknock agents are used. The yield of gas condensate fractions used as diesel fuel ranges from 9% (Punginskoye field) to 26% (Vuktylskoye field); These fractions for most condensates are characterized by relatively high turbidity and solidification temperatures and can be used as fuel only in the summer. To obtain winter diesel fuel, they must be dewaxed.

Separation of stable gas condensates

Increasing requirements for the quality of motor fuels and environmental protection lead to the need to create more complex and thus expensive technological schemes for deep processing of stable gas condensates and oil.

The proposed technology makes it possible to effectively separate stable gas condensates at the molecular level without chemical transformations, the use of rectification and distillation processes, and to obtain commercial motor fuels of European quality.

The advantages of this technology:

Possibility of processing raw materials without preliminary purification from sulfur compounds and obtaining desulfurized motor fuels;

High degree of extraction of gasoline and diesel fractions (100%);

The quality of motor fuels meets European standards;

Low temperature (120 ° C) and pressure (atmospheric) reference process separation;

Simple hardware design;

Reduction of metal consumption and energy consumption per unit of productivity;

Low cost of processing raw materials;

Possibility of creating and using mini-plants located on automobile platforms, which allows for the separation of gasoline and diesel fractions directly at the production site;

The modular principle incorporated in the technological scheme makes it easy to increase productivity;

Lack of expensive catalysts in the production;

Lack of harmful emissions into the atmosphere and waste water;

Complete regeneration of working elements in process discharge (service life not less than 5 years);

Significant reduction in production space.

Comparative characteristics of a mini-plant (with a capacity of 100 thousand tons per year) for processing stable gas condensate and an industrial unit using our proposed technology are shown in the table.

The main ones are:

1) Production is environmentally friendly;

2) The energy intensity of production is reduced by 3-4 times;

3) Installations are easy to operate and do not require the involvement of highly skilled labor;

4) Commercial products fully comply with international standards;

5) A decrease in the number of devices and the absence of the need for a number of additional devices sharply reduces the metal consumption of installations, reduces the area required for building, shortens the construction period and, ultimately, reduces the initial cost of products;

6) accidents at a similar enterprise are much lower than at a conventional one.Currently, we have the complete technical documentation required for the construction of mini-factories that implement any of the described technologies.

* price module depends on the terms of reference and performance.

* When separating diesel fuel as a fraction using our elements, we get the content sulfur in the finished product less than 0.005%.

For the initial implementation, it is proposed to install a separate continuous cycle module with a capacity of about 10,000 tons / year.

1. Initial raw material- stable gas condensate

2. Received product:

Gasoline component

Diesel component

Mineral oil component.

3. Price module (with 65% gasoline fraction and 25% diesel fraction in stable gas condensate), taking into account installation - UAH 2,500,000.

4. Dimensions:

Height - 2.5 - 3 m

Area - 80 m2.

5. Requirements for operating conditions: closed room or shed.

6. Communication:

Water (in a cycle)

Sewerage (emergency)

Electricity (0.1 kW / h).

Liquid mixtures of hydrocarbons (they all differ in different molecular structures and boil at high temperatures), which are released as a by-product in gas condensate, gas and oil fields, are united under the common name - gas condensates. Their composition and quantity depend on the location and conditions of extraction, therefore they vary widely. However, they can be divided into two types:

stable gas condensate in the form of gasoline-kerosene fractions (and sometimes higher molecular weight liquid oil components),
unstable product, which, in addition to hydrocarbons C5 and higher, includes gaseous hydrocarbons in the form of methane-butane fraction.

Condensate can come from three types of wells where it is produced:

Crude oil (it comes in the form of associated gas, which can lie underground separately from crude oil (formations) or be dissolved in it).
Dry natural gas (it has a low content of dissolved hydrocarbons, the condensate yield is low).
Wet natural gas (produced from gas condensate fields and has a high content of gasoline condensate).

The amount of liquid components in natural gases varies from 0.000010 to 0.000700 m³ per 1 m³ of gas. For example, the output of stable gas condensate in various fields:

Vuktylskoe (Komi Republic) - 352.7 g / m³;
Urengoyskoe (Western Siberia) - 264 g / m³;
Gazlinskoe (Central Asia) - 17 g / m³;
Shebelinskoe (Ukraine) - 12 g / m³.

Natural gas condensate is a multicomponent mixture of various liquid hydrocarbons with a low density, in which gaseous components are present. It condenses from the raw gas when the temperature drops at (below the dew point of the produced hydrocarbons). It is often referred to simply as "condensate" or "gasoline".

The schemes for separating condensate from natural gas or oil are varied and depend on the field and the purpose of the products. As a rule, at a technological unit built next to a gas or gas condensate field, the produced gas is prepared for transportation: water is separated, purified to a certain limit from sulfur compounds, C1 and C2 hydrocarbons are transported to the consumer, and a small fraction (of the produced) is injected into the reservoirs for maintaining pressure. The separated fraction (after removing the C3 components from it, but with a small content of them) is the gas condensate that is sent in the form of a feed stream to refineries or to petrochemical synthesis units. Transportation is carried out by pipeline or bulk transport.

Gas condensate is not used as a feedstock for the production of gasoline with a low octane number, to increase which antiknock additives are used. In addition, the product is characterized by a high cloud point and pour point, which is why it is used to obtain summer fuel. As gas condensate, they are used less often, since additional dewaxing is required. This direction uses less than a third of the produced condensates.

The most interesting technological solution is the use of such a product as a wide fraction of light hydrocarbons for petrochemical synthesis. From its receipt, the processing of gas condensate begins. Deeper processes continue in pyrolysis units, where NGL is used as feedstock for the production of such important monomers as ethylene, propylene and many other related products. Then ethylene is sent to polymerization units, from which polyethylene of various grades is obtained. The result is polypropylene. The butylene-butadiene fraction is used for the manufacture of rubber. Hydrocarbons C6 and higher are the raw material for the production of petrochemical synthesis (benzene is obtained), and only the C5 fraction, which is the raw material for obtaining the most valuable products, is still ineffectively used.