RU2525764C2 - Hydrocarbon gas mix preparation and processing plant (versions) - Google Patents

Abstract

FIELD: oil-and-gas industry.

SUBSTANCE: proposed plant comprises stock feed pipeline, hydrocarbon gas mix compressor and one membrane separator. The latter has apenetrate outlets connected with consumer and those of penetrate connected via low-temperature cooling assy. The latter includes recuperative heat exchangers of return gas flows and fluids outflowing from separator, and propane evaporator with separator inlet. Used column has fluid inlet and fluid top irrigation assy. The latter has gas outlet and bottom heater with fluid outlet. Pipelines communicate the equipment and shutoff valves and accessories. Hydrocarbon gas compression unit has hydrocarbon compressed matter exit. The letter is communicated via pressure adjustment device with penetrate exit from membrane separator. Invention covers the design version of the plant.

EFFECT: optimised operation, lower costs.

14 cl, 2 dwg

Description

The invention relates to the processing of petroleum and natural gases and can be used in the gas, oil, chemical and petrochemical industries.

The well-known installation of multi-stage cleaning of the gas mixture (RF Patent for utility model No. 110286, IPC B01D 53/00, publ. 20.11.2011) contains a compressor and two membrane gas separators. The compressor inlet is connected to the supply pipe of the initial gas mixture, and the output is connected to the pipe with a first membrane separator, from which the outlet of the non-penetrating gas (apenetrate) is connected by a pipe to the second membrane separator, from which the outlet of the apenetrate is connected to the pipeline for supplying the purified gas mixture to the consumer. The outlet of the penetrated gas (penetrate) of the first membrane separator is connected to the pipeline supplying this gas for further processing or disposal. The installation is equipped with additional membrane modules, one of the modules being connected in parallel to the first membrane separator, and the other module being connected in parallel to the second membrane separator with two additional vacuum compressors, the first additional vacuum compressor being installed in the first discharge pipe of the penetrated gas mixture, the second vacuum -compressor is installed in the second pipeline of removal of the penetrated gas mixture.

The installation can be equipped with a refrigerator, a separator and a filter, which are installed in series in the pipeline for supplying the initial gas mixture.

Common features of a known solution and proposed solutions are:

- pipeline supply of raw materials;

- compressor;

- at least one membrane separator having outputs of apenetrate and penetrate;

- the output of the apenetrate is connected to the consumer;

- the output of the penetrate membrane separator is connected to the pipeline supplying this gas for further processing;

- heat exchangers;

- separator;

- pipelines connecting equipment;

- shut-off and control valves.

The disadvantages of the known installation are as follows.

The inability to use (engage in processing) a hydrocarbon compress formed in any case when compressing a raw hydrocarbon gas. It is known that when compressing a mixture of hydrocarbon gases (especially associated petroleum gas (APG), which is characterized by a high content of valuable components C _{3 + above} ), a significant content of hydrocarbon condensate is released, which in most cases is not involved in qualified processing, which ultimately leads to loss parts of valuable products. The amount of compress formed during compression can range from 5 to 30% of the potential hydrocarbon content of C _{3 + higher} in the feed hydrocarbon gas. The lossy compressor is returned to oil or burned.

The closest in technical essence and the achieved result is the installation of separation of gas hydrocarbon mixtures that implements the method according to the patent of the Russian Federation for invention No. 2028567, IPC ⁶ F25J 3/06, publ. 02/09/1995, comprising a unit for compressing a gas hydrocarbon mixture (compressor), a first stage membrane separator, a second stage membrane separator, each membrane separator has penetrate and apenetrate outputs, while the penetrate exit from the first membrane separator is connected through a low-temperature cooling unit to the separator inlet, wherein the low-temperature cooling unit includes recuperative heat exchangers for the return flows of gas and liquid leaving the separator, and a propane evaporator. The installation has a column with a liquid inlet connected to a low-temperature cooling unit, and the column has an outlet of liquid and vapor phase and is equipped with an irrigation unit of its top having a gas outlet and a unit of heating its bottom with a liquid outlet. The top column irrigation unit includes a reflux tank, pump, refrigerator, in addition, the installation contains a booster compressor, piping lines connecting the equipment and shut-off and control valves (RF Patent for the invention No. 2028567, IPC F25J 3/06, publ. 09.02.1995) .

Common features of the known and proposed solutions for the first option are the following:

- pipeline supply of raw materials;

- compression unit for a gas hydrocarbon mixture;

- at least one membrane separator having outputs of penetrate and apenetrate;

- the output of the apenetrate is connected to the consumer;

- the penetrate outlet is connected through a low-temperature cooling unit to the inlet of the separator;

- the low-temperature cooling unit includes recuperative heat exchangers for the return flows of gas and liquid leaving the separator, and a propane evaporator;

- a column with a liquid inlet, with a top irrigation unit having a gas outlet, and a bottom heating unit having a liquid outlet;

- pipelines connecting equipment;

- shut-off and control valves.

Common features of the known and proposed solutions for the second option are the following:

- pipeline supply of raw materials;

- compression unit for a gas hydrocarbon mixture;

- at least one membrane separator having outputs of penetrate and apenetrate;

- the output of the apenetrate is connected to the consumer;

- the penetrate outlet is connected through a low-temperature cooling unit to the inlet of the separator;

- the unit of low-temperature cooling includes a recuperative heat exchanger for the return flow of liquid leaving the separator, and a propane evaporator;

- recuperative heat exchanger of the return flow of gas leaving the separator;

- a column with a liquid inlet, with a top irrigation unit having a gas outlet, and a bottom heating unit having a liquid outlet;

- pipelines connecting equipment;

- shut-off and control valves.

The disadvantages of the known installation is as follows.

The lack of the possibility of using (involving in processing) the hydrocarbon compress formed during the compression of raw hydrocarbon gas.

At the outlet from the installation, two gas flows are obtained, which differ in both pressure and quality of preparation (the degree of C _{3 +} extraction is _higher and the degree of gas dehydration), which may be unacceptable to the consumer, not optimal for further pipeline transport and / or require the use of an additional unit compression, which increases capital and operating costs.

As the plant’s liquid products, only one product is intended to be obtained - a wide fraction of light hydrocarbons (NGL), which limits the potential and flexibility of an industrial facility. In many cases, even for regional consumption, a wider range of commercial products is required, for example, automobile propane (PA), automobile propane-butane (PBA), liquefied gases for household consumption, aviation condensed fuel (ASKT), stable gasoline (BSG) .

The technical result of the invention is the provision of the use (involvement in processing) of a hydrocarbon compress formed during compression of a gas hydrocarbon mixture with the expansion of the range of marketable products, making it possible to fully satisfy consumer demand for products while optimizing the operation of the installation and reducing capital and operating costs.

This result is achieved by the fact that, according to the first embodiment, in the known installation for the preparation and processing of gas hydrocarbon mixtures containing a feed line, a compression unit, at least one membrane separator having apenetrate outputs connected to the consumer, and penetrate connected through a low-temperature unit cooling, including recuperative heat exchangers for the return flows of gas and liquid exiting the separator, and a propane evaporator with an inlet of the separator, a column with a liquid inlet, with knots the irrigation scrap of its top, which has a gas outlet, and its bottom heating unit, which has a liquid outlet, the piping lines connecting the equipment and shut-off and control valves, the new thing is that the compression unit has a hydrocarbon compress outlet, which is connected using a device that provides regulation pressure, with the release of penetrate from the membrane separator.

In addition, the gas outlet from the recuperative gas return heat exchanger of the low-temperature cooling unit according to the first embodiment is connected to the pipeline for supplying raw materials to the compression unit.

According to the second embodiment, the technical result is achieved in that in the known installation for the preparation and processing of gas hydrocarbon mixtures containing a compression unit, at least one membrane separator having apenetrate outputs connected to the consumer, and penetrate connected through a low-temperature cooling unit, including recuperative a liquid return heat exchanger exiting the separator, and a propane evaporator, with a separator inlet, a regenerative gas return heat exchanger, outlet a column with a liquid inlet, with a top irrigation unit having a gas outlet and a bottom heating unit with a liquid outlet, piping lines connecting the equipment and shut-off and control valves, new is that the compression unit has a hydrocarbon outlet a compress connected to a recuperative heat exchanger of the return flow of gas leaving the separator through a cooled medium, and the output of the compress from this heat exchanger is connected using a device that provides pressure control I, whose output is connected to the input penetrants propane evaporator assembly or the low-temperature cooling in a yield of penetrants node low-temperature cooling.

In addition, according to the second embodiment, the gas outlet from the recuperative heat exchanger of the return gas stream exiting the separator can be connected to the feed line to the compression unit.

In addition, according to any of the options, the gas outlet of the column irrigation unit can be connected to the feed line or to the pipeline at the inlet of the membrane separator, or to the outlet of the apenetrate from the membrane separator.

In addition, according to any of the options, the column irrigation unit may additionally have an output of automobile propane (PA), or automobile propane-butane (PBA), or a technical propane-butane mixture (SPBT).

In addition, according to any of the options, the column may have an additional lateral exit of aviation condensed fuel (ASKT).

In addition, according to any of the options, the column may have an additional lateral exit of aviation condensed fuel (ASKT), while the irrigation unit has an additional exit of propane automobile (PA).

In addition, according to any of the options, the installation can be equipped with an additional heat exchanger connected via a heated medium to the liquid outlet from the regenerative heat exchanger of the liquid backflow unit of the low-temperature cooling unit and to the liquid inlet to the column, and through the heating medium it can be connected to the liquid outlet of the heating unit bottom of the column and the consumer.

The claimed combination of features according to the first and second options provides qualified processing of gas obtained during compression of gas hydrocarbon mixtures (raw gas) in the compression unit (an essential sign in front of the membrane separator) of the compress, the amount of which can be 5-30% of the potential C _{3 +} hydrocarbon content is _higher in feed gas. This allows you to get on the proposed installation, in addition to a wide fraction of light hydrocarbons (hereinafter referred to as NGL), a wide range of economically profitable products: aviation condensed fuel (hereinafter referred to as ASKT), or automobile propane (hereinafter referred to as PA), and / or propane automobile butane (hereinafter referred to as PBA), technical propane-butane mixture (hereinafter referred to as SPBT), stable gasoline (hereinafter referred to as BGS) depending on consumer demand and allows solving the problem of using compress Except his loss (return to the oil or flaring), which can significantly improve the technical and economic performance of the object, by obtaining additional products, the quality and range of which meet consumer demand and which has a high cost. At the same time, the installation ensures the receipt of various products only by changing the technological parameters of the installation.

Installation options, namely, supplying the compression unit with the outlet of the hydrocarbon compress and connecting it using a pressure regulating device with the outlet of the penetrate from the membrane separator (according to the first embodiment) or connecting the outlet of the hydrocarbon compress through a recuperative heat exchanger of the gas return from the separator by a cooled medium, using a device that provides pressure control, with the entrance of penetrate into the propane evaporator of the low-temperature cooling unit denia or with the penetrate exit from the low-temperature cooling unit, depending on the parameters of the feed gas and return flows (temperature, pressure, flow) (according to the second option), provide:

- selection of energy-saving and optimal gas preparation and processing schemes;

- flexibility to control the quality of the prepared gas and the degree of extraction of the target components C _{3 + higher} .

The combination of features according to the first embodiment provides the use of a refrigerated compress as an absorbent to increase the degree of extraction of C _{3 + higher} from the penetrate stream.

The choice of installation option is carried out in each case, depending on the characteristics of the feed gas and the requirements for the quality of its preparation and the range of marketable liquid products.

At the exit installation has a gas stream prepared to the necessary requirements for its quality (pressure, dew point of moisture (TTP _H2O) and hydrocarbons (TTP _y-dy)), for supplying the consumer or in the transport network, thus optimizing capital and installation operating costs.

The connection of the gas outlet from the recuperative gas return heat exchanger of the low-temperature cooling unit according to the first embodiment and the gas return heat exchanger of the second embodiment with the feed line to the compression unit, as well as the gas outlet of the column irrigation unit with the feed line or with the pipeline line at the membrane inlet separator, or with the release of apenetrate from the membrane separator allows you to utilize the degassing streams leaving the separator, and stabilization flows tion, leaving the column irrigation unit, formed in small quantities, by feeding to compression or depending on pressure and composition by feeding into the corresponding flows according to the gas preparation scheme.

Due to the above, and with greater manufacturability and simplicity, the proposed scheme can operate in a wide range of pressures and cooling temperatures of "greasy" hydrocarbon mixture streams, which makes it possible to control the degree of C _{3 +} extraction _higher from the feed gas, and therefore the quality of its preparation at full the use (utilization) of raw gas and the resulting compress.

The figure 1 presents the installation diagram according to the first embodiment.

The figure 2 presents the installation diagram of the second embodiment.

The installation for the preparation and processing of gas hydrocarbon mixtures according to the first embodiment (Fig. 1) contains a pipeline 1 for supplying raw materials (gas hydrocarbon mixture) connected to a compression unit 2, including a compressor, a drive and auxiliary equipment (gas cooler, separator). The compression unit 2 has at least one stage of compression. The compression unit 2 is connected by a pipe line 3 to at least one membrane separator 4 having an apenetrate outlet 5 connected to a consumer and a penetrate outlet 6. The outlet of the penetrate 6 is connected through a low-temperature cooling unit 7, including a recuperative return heat exchanger 8 connected in series gas and recuperative heat exchanger 9 of the liquid return, connected to the gas outlet 10 and the liquid outlet 11, respectively, from the separator 12, and a propane evaporator 13 connected to the sep inlet Ator 12. Node 2 has a compression yield 14 kompressata hydrocarbon which is connected to a device 15 which provides pressure regulation, with a yield of 6 penetrants membrane separator 4. The throttling (pressure control) valve may be used as the device 15. The compression unit 2 also has an outlet for water and heavy hydrocarbons supplied to the oil treatment plants or to the waste disposal system, depending on the presence of these objects near the given installation.

The installation has a column 16 with a fluid inlet 17, with an irrigation unit 18 of its top having a gas outlet 19, and a heating unit 20 of its bottom having a liquid outlet 21 (ASKT, or BFLH, or BGS), connected by a pipe 22 to the consumer.

The irrigation unit 18 includes a refrigerator 23 (air and / or propane, the latter shown in dotted lines in FIG.), A reflux tank 24, and a pump 25.

The gas outlet from the recuperative heat exchanger 8 of the reverse gas flow of the low-temperature cooling unit 7 can be connected to the pipeline 1 for supplying raw materials to the compression unit 2.

According to the second variant, the installation for the preparation and processing of gas hydrocarbon mixtures (Figure 2) contains a pipeline 1 for supplying raw materials (gas hydrocarbon mixture) connected to a compression unit 2, which is connected by a pipeline line 3 to at least one membrane separator 4 having an apenetrate outlet 5, connected to the consumer, and the outlet of the penetrate 6. The exit of the penetrate 6 is connected through a low-temperature cooling unit 7, including a recuperative liquid return heat exchanger 9 connected in series with single with the liquid outlet 11 from the separator 12, and a propane evaporator 13. The compression unit 2 has a hydrocarbon compress outlet 14, which is connected to a recuperative heat exchanger 26 of the return gas flow leaving the separator 12, via a cooled medium, and the compressor outlet from this recuperative heat exchanger 26 connected using a pressure regulating device 15 to the penetrate inlet to the propane evaporator 13 of the low-temperature cooling unit 7 or to the outlet of the penetrate from the propane evaporator 13 node low-temperature cooling 7 (shown in dotted lines in FIG. 2).

Similarly to the first embodiment, the installation according to the second embodiment has a column 16 with a liquid inlet 17, with an irrigation unit 18 of its top having a gas outlet 19, and a heating unit 20 of its bottom having a liquid outlet 21 (ASKT, or NGL, or BGS) connected by a pipeline 22 with the consumer. The irrigation unit 18 includes a refrigerator 23 (air and / or propane), a reflux tank 24 and a pump 25.

According to the second embodiment, the gas outlet from the recuperative heat exchanger 26 of the gas return flow exiting the separator 12 can be connected to the feed pipe 1 to the compression unit 2 of the gas hydrocarbon mixture.

According to any of the options, the gas outlet 19 of the irrigation unit 18 of the column 16 can be connected to the pipeline 1 for supplying raw materials or to a pipeline line 3 at the inlet of the membrane separator 4, or with the outlet of the apenetrate 5 from the membrane separator 4.

The irrigation unit 18 of the column 16 according to any one of the options may have an additional output 27 for PA, or PBA, or SPBT.

In addition, according to any of the options, the column may have an additional ASKT lateral outlet 28, and the irrigation unit 18 may have an additional PA outlet 27.

In addition, according to any of the options, the installation can be equipped with an additional heat exchanger 29 connected via a heated medium to the liquid outlet from the recuperative heat exchanger 9 of the liquid backflow unit of the low-temperature cooling unit 7 and to the liquid inlet 17 to the column 16, and via the heating medium it is connected to the outlet fluid 21 of the heating unit 20 of the bottom of the column 16.

The installation is equipped with a system for inhibiting hydrate formation (glycol) (not shown in FIG.): Input 30 of regenerated glycol, output 31 of saturated glycol.

The unit is also equipped with a refrigerator 32.

The installation is equipped with the necessary shut-off and control valves.

Installation works as follows.

The hydrocarbon gas mixture (associated petroleum gas) through the pipeline 1 enters the compression unit 2, the output of which receives compressed gas, which is fed through the pipeline 3 to the membrane separator 4, where the gas mixture is divided into apenetrate (gas stream prepared to the necessary requirements its quality (pressure, dew point of moisture (TTP _H2O) and hydrocarbons (TTP _y-dy)) outputted via output 5 apenetrata consumer, penetrants and outputted through output 6 penetrants.

In the first embodiment, the discharged penetrate is connected to the compressor obtained and discharged through the outlet 14 with a predetermined pressure provided by the device 15, and fed to the low-temperature cooling unit 7, where the mixture is cooled according to the first embodiment in series in a recuperative heat exchangers 8, 9 and in a propane evaporator 13 and then it is fed to the separator 12. In the separator 12 there is a separation into the gas discharged through the gas outlet 10 into the recuperative heat exchanger 8 and further into the pipe 1, and into the liquid, which through the liquid outlet 11, is regenerative the second heat exchanger 9 is fed directly (or through an additional heat exchanger 29) through the fluid inlet 17 to the column 16.

According to the second variant, the penetrate removed from the membrane separator 4 is fed for cooling to the low-temperature cooling unit 7, in which the penetrate is sequentially cooled in a recuperative heat exchanger 9 and in a propane evaporator 13 and then fed to the separator 12. In this case, the compress obtained and discharged through the outlet 14 is cooled in the recuperative heat exchanger 26, then served in the device 15, providing the design pressure with which the compress is fed to mix with penetrate after the recuperative heat exchanger 9 or after propane of the evaporator 13. In the separator 12, the hydrocarbon mixture is separated into gas discharged through the gas outlet 10 to the recuperative heat exchanger 26, where the gas cools the compress, and then to the pipe 1, and into the liquid phase, which through the liquid outlet 11, the recuperative heat exchanger 9 served directly (or through an additional heat exchanger 29) through the fluid inlet 17 into the column 16.

In both cases, the liquid phase from the separator 12, feeding into the additional heat exchanger 29, can be heated, if necessary, with the bottoms product of the column 16. In the column 16, the hydrocarbon mixture is separated into a vapor hydrocarbon phase, which is cooled in the refrigerator 23 with air and / or a propane refrigerant, separated in the reflux tank 24, from where, by pump 25, the condensed liquid part of either PA, or PBA, or SPBT is supplied to irrigate the top of the column 16, and the balance part of the liquid through outlet 27 is withdrawn as a finished commodity ebitelyu. The non-condensed gas part - stabilization gas - from the reflux tank 24 through the gas outlet 19 is returned to the pipeline 1 with the flow of the initial gas hydrocarbon mixture (associated petroleum gas) or to the pipeline line 3 with the flow of compressed gas entering the membrane separator 4, or to the pipeline line at the exit of apenetrat 5 and further to the consumer.

It is possible to withdraw through the side stream of the column 16 through the lateral exit 28 as an ASKTT finished product as a consumer product.

From the bottom of the column 16, a product is obtained — either ASKT or BFLH or BGS, which is removed from the heating unit 20 and / or directly from the column 16 through the liquid outlet 21. Next, the lower product, depending on the composition of the raw materials, is cooled in the refrigerator 32 and sent to the consumer or previously sent to heat recovery in an additional heat exchanger 29, using the heat potential for heating the feed stream, and then through the pipe 22 sent for further cooling in the refrigerator 32 and then sent to the consumer.

Column 16, having a certain number of mass transfer devices, provides a given quality and range of products.

Thus, depending on the feedstock and consumer demand, it is possible to obtain commercial liquid products in the following combinations at the installation:

- BFLH (liquid output 21);

- PA (output 27), ASKT (lateral output 28), BGS (fluid output 21);

- PA (output 27), ASKT or NGL (liquid output 21);

- PBA (output 27), ASKT or BGS (fluid output 21);

- SPBT (output 27), BGS (fluid output 21).

To prevent hydrate formation in the low-temperature cooling unit 7, the regenerated glycol is fed through the inlet 30 and the saturated glycol is output to the regeneration from the unit from the separator 12 through the outlet 31. In the second embodiment, the glycol is introduced into the compress before it is fed to the regenerative heat exchanger 26.

Claims (14)

1. Installation for the preparation and processing of gas hydrocarbon mixtures, containing a pipeline for supplying raw materials, a gas hydrocarbon mixture compression unit, at least one membrane separator having apenetrate outputs connected to a consumer, and a penetrate connected through a low-temperature cooling unit, including recuperative heat exchangers gas and liquid flows leaving the separator, and a propane evaporator with a separator inlet, a column with a liquid inlet, with its top irrigation unit having an outlet gas, and a unit for heating its bottom having a fluid outlet, pipelines connecting equipment and shut-off and control valves, characterized in that the compression unit for the gas hydrocarbon mixture has a hydrocarbon compress outlet, which is connected using a pressure regulating device with a penetrate outlet from a membrane separator. 2. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the gas outlet from the recuperative heat exchanger of the return flow of gas of the low-temperature cooling unit is connected to the pipeline for supplying raw materials to the compression unit. 3. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the gas outlet of the column irrigation unit is connected to a feed line or to a pipe line at the inlet of the membrane separator, or with the outlet of the apenetrate from the membrane separator. 4. The installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the column irrigation unit has an additional output of automobile propane (PA), or automobile propane-butane (PBA), or technical propane-butane mixture (SPBT). 5. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the column has an additional lateral exit of aviation condensed fuel (ASKT). 6. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the column has an additional lateral exit of aviation condensed fuel (ASKT), and the irrigation unit has an additional exit of automobile propane (PA). 7. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 1, characterized in that the installation is equipped with an additional heat exchanger connected via a heated medium to the liquid outlet from the regenerative heat exchanger of the liquid backflow unit of the low-temperature cooling unit and to the liquid inlet to the column, and by the heating medium it is connected to the fluid outlet of the bottom heating unit. 8. Installation for the preparation and processing of gas hydrocarbon mixtures, containing a unit for compressing a gas hydrocarbon mixture, at least one membrane separator having apenetrate outputs connected to a consumer, and a penetrate connected through a low-temperature cooling unit, including a recuperative heat exchanger for the liquid backflow from the separator, and a propane evaporator with an inlet to the separator, a recuperative heat exchanger for the return flow of gas leaving the separator, a column with a liquid inlet , with an irrigation unit of its top having a gas outlet and a unit of heating its bottom having a liquid outlet, piping lines connecting equipment and shut-off and control valves, characterized in that the gas-hydrocarbon mixture compression unit has a hydrocarbon compress outlet connected to a regenerative a heat exchanger of the return flow of gas leaving the separator through the medium to be cooled, and the outlet of the compress from this heat exchanger is connected using a device providing pressure control to the foam inlet waste propane evaporator assembly or the low-temperature cooling in a yield of penetrants node low-temperature cooling. 9. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the gas outlet from the recuperative heat exchanger of the return gas stream exiting the separator is connected to a pipeline for supplying raw materials to the compression unit of the gas hydrocarbon mixture. 10. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the gas outlet of the column irrigation unit is connected to a raw material supply pipe or to a pipeline line at the inlet of the membrane separator, or with the outlet of the apenetrate from the membrane separator. 11. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the column irrigation unit has an additional output of automobile propane (PA), or automobile propane-butane (PBA), or technical propane-butane mixture (SPBT). 12. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the column has an additional lateral exit of aviation condensed fuel (ASKT). 13. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the column has an additional side outlet of aviation condensed fuel (ASKT), and the irrigation unit has an additional outlet of automobile propane (PA). 14. Installation for the preparation and processing of gas hydrocarbon mixtures according to claim 8, characterized in that the installation is equipped with an additional heat exchanger connected via a heated medium to the liquid outlet from the regenerative heat exchanger of the liquid backflow unit of the low-temperature cooling unit and to the liquid inlet to the column, and by the heating medium it is connected to the fluid outlet of the bottom heating unit.

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