SU1366821A1 - Method of removing acid components from natural gas - Google Patents
Method of removing acid components from natural gas Download PDFInfo
- Publication number
- SU1366821A1 SU1366821A1 SU843790562A SU3790562A SU1366821A1 SU 1366821 A1 SU1366821 A1 SU 1366821A1 SU 843790562 A SU843790562 A SU 843790562A SU 3790562 A SU3790562 A SU 3790562A SU 1366821 A1 SU1366821 A1 SU 1366821A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- acidic components
- liquid phase
- gas
- cooling
- natural gas
- Prior art date
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 7
- 239000003345 natural gas Substances 0.000 title claims abstract description 5
- 239000002253 acid Substances 0.000 title 1
- 230000002378 acidificating effect Effects 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000007791 liquid phase Substances 0.000 claims abstract description 6
- 238000009833 condensation Methods 0.000 claims abstract description 4
- 230000005494 condensation Effects 0.000 claims abstract description 4
- 238000000605 extraction Methods 0.000 claims abstract description 4
- 238000001704 evaporation Methods 0.000 claims abstract description 3
- 238000000746 purification Methods 0.000 claims abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 10
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical group S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 9
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 5
- 239000001569 carbon dioxide Substances 0.000 claims description 5
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 13
- 238000005516 engineering process Methods 0.000 abstract description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 150000002334 glycols Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Изобретение относитс к технологии переработки газа, в частности к очистке газа от кислых компонентов. Дл осуществлени очистки природного газа от кислых компонентов путем ступенчатого охлаждени с одновременной конденсацией кислых компонентов с получением жидкой фазы, дл повьше- ни степени извлечени кислых компонентов и удешевлени процесса охлаждени ведут в три ступени, причем на первой ступени - воздухом, а на последующих ступен х - испар ющейс жидкой фазой, полученной на предыдущей CTjraeHH охлаждени . 1 табл. (Л сThe invention relates to gas processing technology, in particular to the purification of gas from acidic components. In order to purify natural gas from acidic components by stepwise cooling with simultaneous condensation of acidic components to form a liquid phase, to increase the degree of extraction of acidic components and to reduce the cost of the cooling process, they are conducted in three stages, and in the next stage - the evaporating liquid phase obtained on the previous CTjraeHH cooling. 1 tab. (L with
Description
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Изобретение относитс к техйоло- гии переработки газа, в частности к очистке газа от кислых компонентов.The invention relates to the technology of gas processing, in particular to the purification of gas from acidic components.
Целью изобретени вл етс повьше- ние степени извлечени кислых компонентов и удешевление процесса.The aim of the invention is to increase the degree of extraction of acidic components and reduce the cost of the process.
Пример. Природный газ из сква ин под давлением 10 МПа и с температурой 40-60° С подают в головные сепараторы промысла, где из него выдел ют углеводороды С + высшие. После первичной сепарации газ охлаждают атмосферным воздухом в аппаратах воздушного охлаждени или вод ных холодильниках , в рекуперативном теплообменнике обратным потоком холод- . кого газа, поступающего с установки низкоте мпературной конденсации.Example. Natural gas from a borehole at a pressure of 10 MPa and with a temperature of 40-60 ° C is fed to the head separators of the field, where C + higher hydrocarbons are extracted from it. After the initial separation, the gas is cooled with atmospheric air in air-cooled apparatuses or water chillers, in a recuperative heat exchanger in reverse flow of cold. gas from the low temperature condensation unit.
Далее газ подают на очистку в каскад низкотемпературной конденсации, включающий сепараторы и. испарители. В каждой ступени каскада происходит охлалодение газа в испарителе испар ющимс конденсатом, поступающим из сепаратора предыдущей ступени.Next, the gas is fed to the cleaning cascade of low-temperature condensation, including separators and. evaporators. At each stage of the cascade, gas is cooled in the evaporator by evaporating condensate coming from the separator of the previous stage.
Количество ступеней каскада определ етс начальной концентрацией и глубиной извлечени сероводорода из природного газа. Очищенный от сероводорода газ из сепаратора последней ступени каскада подают на охлаждение очищаемого газа в рекуперативный теплообменник . Дл предотвращени гид- ратообразовани перед каждым теплообменником в поток газа подаетс гликоль.The number of stages in the cascade is determined by the initial concentration and depth of extraction of hydrogen sulfide from natural gas. The gas purified from hydrogen sulfide from the separator of the last stage of the cascade is fed to the recuperative heat exchanger for cooling the gas to be purified. To prevent hydrate formation, glycol is fed into the gas stream before each heat exchanger.
Отсепарированна жидка фаза, включающа сконденсировавшийс сероводород , углекислый гай, углеводороды , и водный раствор гликол из каждого испарител через разделитель дл отделени гликол , подаетс пос- ле разделени на ректификационную колонку дл выделени сероводородного концентрата, стабильного конденсата. Насыщенньй гликоль из разделителей подаетс на установку регенерации.The separated liquid phase, which includes condensed hydrogen sulfide, carbon dioxide, hydrocarbons, and an aqueous solution of glycol from each evaporator, through a separator to separate the glycol, is fed after separation to a distillation column to isolate hydrogen sulfide concentrate, a stable condensate. Saturated glycol from the separators is fed to the regeneration unit.
В таблице приведены результаты за- висимости изменени содержани сероводорода и двуокиси углерода в отсе- парированном газе от температуры сепарации при давлении 10,0 МПа. Содержание в исходном газе, об.%: сероводород 23,7; двуокись углерода 20. Таблуца составлена по кривым давлени паров жидкого сероводорода и углекислоты .The table shows the results of the dependence of the changes in the content of hydrogen sulfide and carbon dioxide in the gas separated from the separation temperature at a pressure of 10.0 MPa. The content in the source gas, vol.%: Hydrogen sulfide 23,7; carbon dioxide 20. The table is compiled from the vapor pressure curves of liquid hydrogen sulfide and carbon dioxide.
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При 100%-ном извлечении кислых компонентов (вместо 80% по известному способу) снижаютс затраты на осуществление способа в 20-25 раз.At 100% recovery of the acidic components (instead of 80% by a known method), the cost of implementing the method is reduced by 20-25 times.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843790562A SU1366821A1 (en) | 1984-06-28 | 1984-06-28 | Method of removing acid components from natural gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU843790562A SU1366821A1 (en) | 1984-06-28 | 1984-06-28 | Method of removing acid components from natural gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1366821A1 true SU1366821A1 (en) | 1988-01-15 |
Family
ID=21138474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU843790562A SU1366821A1 (en) | 1984-06-28 | 1984-06-28 | Method of removing acid components from natural gas |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1366821A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2151349C1 (en) * | 1999-01-10 | 2000-06-20 | Общество с ограниченной ответственностью "Оренбурггазпром" | Method of fractionation of natural gas |
| RU2216698C2 (en) * | 2001-10-19 | 2003-11-20 | Сериков Чингиз Тохтарович | Process of extraction of acidic components from natural and accompanying oil gas |
| RU2462295C2 (en) * | 2007-06-27 | 2012-09-27 | Твистер Б.В. | Hydrogen sulphide removal from natural gas flow |
| RU2482407C2 (en) * | 2007-06-26 | 2013-05-20 | Линде Акциенгезелльшафт | Method to remove carbon dioxide |
| RU2576738C1 (en) * | 2014-11-14 | 2016-03-10 | Общество с ограниченной ответственностью "ЭНГО Инжиниринг" | Method of natural gas cleaning and device to this end |
-
1984
- 1984-06-28 SU SU843790562A patent/SU1366821A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Патент US № 3324668, кл. 6212, опублик. 1970. * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2151349C1 (en) * | 1999-01-10 | 2000-06-20 | Общество с ограниченной ответственностью "Оренбурггазпром" | Method of fractionation of natural gas |
| RU2216698C2 (en) * | 2001-10-19 | 2003-11-20 | Сериков Чингиз Тохтарович | Process of extraction of acidic components from natural and accompanying oil gas |
| RU2482407C2 (en) * | 2007-06-26 | 2013-05-20 | Линде Акциенгезелльшафт | Method to remove carbon dioxide |
| RU2462295C2 (en) * | 2007-06-27 | 2012-09-27 | Твистер Б.В. | Hydrogen sulphide removal from natural gas flow |
| RU2576738C1 (en) * | 2014-11-14 | 2016-03-10 | Общество с ограниченной ответственностью "ЭНГО Инжиниринг" | Method of natural gas cleaning and device to this end |
| RU2576738C9 (en) * | 2014-11-14 | 2016-05-20 | Общество с ограниченной ответственностью "ЭНГО Инжиниринг" | Method of natural gas processing and device to this end |
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