SU709140A1 - Hydrocarbon gas purifying method - Google Patents
Hydrocarbon gas purifying method Download PDFInfo
- Publication number
- SU709140A1 SU709140A1 SU772521606A SU2521606A SU709140A1 SU 709140 A1 SU709140 A1 SU 709140A1 SU 772521606 A SU772521606 A SU 772521606A SU 2521606 A SU2521606 A SU 2521606A SU 709140 A1 SU709140 A1 SU 709140A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- hydrocarbon gas
- absorber
- gas purifying
- purifying method
- regeneration
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 9
- 229930195733 hydrocarbon Natural products 0.000 title description 8
- 150000002430 hydrocarbons Chemical class 0.000 title description 8
- 239000004215 Carbon black (E152) Substances 0.000 title description 4
- 239000006096 absorbing agent Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- 230000002378 acidificating effect Effects 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 6
- 238000011069 regeneration method Methods 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 5
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 1
- STCOOQWBFONSKY-UHFFFAOYSA-N tributyl phosphate Chemical compound CCCCOP(=O)(OCCCC)OCCCC STCOOQWBFONSKY-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
- Treating Waste Gases (AREA)
Description
Изобретение относитс к способам очистки углеводородного газа от кис лых компонентов, в частности к очис ке газов, наход щихс под давлением и содержсццих также значительное кол чество т желых углеводородов. Известен способ очистки газов от кислых компонентов и паров воды с использованием физического поглотител (метанол) при температуре до минус 30°С и низких давлени х 1. Наиболее близким к предлагаемому вл етс способ очистки углеводородного газа от кислых компонентов, включающий противоточное контактирование с физическим поглотителем, регенерацию отработанного поглотител при повышенной температуре в десорбере 2, Недостатком этого способа вл етс невозможность переработки газов регенерации в элементарную серу по методу Клауса из-за наличи в них т желых углеводородов, а также значи тельные потери т желых углеводородов составл ющие до 30-40 вес.%. Целью изобретени вл етс обеспечение возможности дальнейшей переработки кислых компонентов в элементарную серу по методу Клауса. Это достигаетс способом очистки углеводородного газа от кислых компонентов , включающим противоточное контактирование с физическим погло тителем и регенерацией отработанного поглотител при повышенной температуре в десорбере, при котором отработанный поглотитель перед регенерацией подают в абсорбционно-отпарную колонну,орошаемую регенерированным поглотителем или верхним продуктом десорбера. Использование перед основной регенерацией Дополнительной абсорбционно-отпарной колонны позвол ет в 3-5 раз уменьшить содержание т жёлых углеводородов в кислых газах, подвергаемых дальнейшей переработке, а также позвол ет перерабатывать полученные газы регенерации по процессу Клауса. Кроме -того, в качестве поглотител кислых компонентов можно использовать как нижний продукт абсорбционно-отпарной колонны, так и его змесь с нижним продуктом десорбера.The invention relates to methods for purifying hydrocarbon gas from acid components, in particular to the purification of gases under pressure and also containing a significant amount of heavy hydrocarbons. A known method of purifying gases from acidic components and water vapor using a physical absorber (methanol) at temperatures down to minus 30 ° C and low pressures 1. The closest to the present is a method of purifying hydrocarbon gas from acidic components, including countercurrent contact with a physical absorber , regeneration of the spent absorber at elevated temperatures in desorber 2. The disadvantage of this method is the impossibility of processing the regeneration gases into elemental sulfur according to the Claus method due to and the presence of heavy hydrocarbons in them, as well as significant losses of heavy hydrocarbons, constituting up to 30-40 wt.%. The aim of the invention is to provide the possibility of further processing of the acidic components into elemental sulfur according to the Claus method. This is achieved by a method of purifying hydrocarbon gas from acidic components, including countercurrent contact with a physical absorber and regeneration of the spent absorber at an elevated temperature in the stripper, at which the exhausted absorber is fed into the absorption / stripping column irrigated with the regenerated absorber or desorber top product before regeneration. The use of the Additional Absorption Stripping column before the main regeneration makes it possible to reduce the content of heavy hydrocarbons in acidic gases undergoing further processing by a factor of 3-5, and also allows the resulting regeneration gases to be processed by the Claus process. In addition, as the absorber of acidic components, you can use both the bottom product of the absorption and stripping column, and its mixture with the bottom product of the desorber.
Пример, Очистке подвергеиот природный газ следующего состава, % Об: Nj- 1,98, СИл- 47,48, ,93, С Нц - 0,ЭЗ,СдН,о - 0,55, высшие - 3,08, СО - 21,55, - 22,5.в качестве поглотител используют трибутилфосфат. Очистку ведут при давлении 60 кгс/см и температуре 30°С, Расход поглотител составл ет 2,5 л/им перерабатываемого газа. Давление в десорбере поддерживают равным 1,1 кгс/см, ai в абсорбционно отпарной колонне 8,0 кГС/см. При этом из абсорбционно-отпарной колонны отвод т кислые газы следующего состава, % об. 4,5, ,+ высшие - 1,5, 46,0, - 48,0.Example, Purification of natural gas of the following composition,% O: Nj- 1.98, SIL- 47.48,, 93, С Нц - 0, EZ, SdN, о - 0.55, higher - 3.08, WITH - 21.55, - 22.5. Tributyl phosphate is used as an absorber. Purification is carried out at a pressure of 60 kgf / cm and a temperature of 30 ° C. The consumption of the absorber is 2.5 liters / im of the gas to be processed. The pressure in the stripper is maintained at 1.1 kgf / cm, and ai in the absorption and stripping column is 8.0 kGS / cm. At the same time, acid gases of the following composition,% by volume, are withdrawn from the absorption and stripping column. 4.5, + higher - 1.5, 46.0, - 48.0.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772521606A SU709140A1 (en) | 1977-08-17 | 1977-08-17 | Hydrocarbon gas purifying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772521606A SU709140A1 (en) | 1977-08-17 | 1977-08-17 | Hydrocarbon gas purifying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU709140A1 true SU709140A1 (en) | 1980-01-15 |
Family
ID=20723813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772521606A SU709140A1 (en) | 1977-08-17 | 1977-08-17 | Hydrocarbon gas purifying method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU709140A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851265A (en) * | 1996-09-03 | 1998-12-22 | Monsanto Company | Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
-
1977
- 1977-08-17 SU SU772521606A patent/SU709140A1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5851265A (en) * | 1996-09-03 | 1998-12-22 | Monsanto Company | Selective removal and recovery of sulfur dioxide from effluent gases using organic phosphorous solvents |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SU940633A3 (en) | Method for regenerating absorbent in the process of gas purification from acid components | |
| GB1469693A (en) | Selective removal of hydrogen sulphide from gaseous mixtures | |
| EP0159495A3 (en) | Process for the removal of co2 and/or h2s from gases | |
| GB1465371A (en) | Process for removing gaseous impurities from exhaust gases of contact process plants for producing sulphuric acid | |
| GB1501195A (en) | Method of removing co2 and/or h2s from a gaseous mixture containing same | |
| US4412977A (en) | Selective acid gas removal | |
| GB1438227A (en) | Removing ammonia from gases | |
| GB1490228A (en) | Process for regenerating sulphuric acid | |
| SU728691A1 (en) | Method of separating fluor from gases of aluminium production | |
| ES334975A1 (en) | Ammonia purification | |
| CA1339890C (en) | Process for removing acid gas from a gas mixture containing acid gas | |
| PL235019A1 (en) | ||
| SU709140A1 (en) | Hydrocarbon gas purifying method | |
| GB1021963A (en) | A process for working up waste gases containing hydrogen chloride | |
| ATE24475T1 (en) | PROCESS FOR PURIFYING A MIXTURE OF WATER WITH C1-C2 ALCOHOLS DERIVED FROM THE INDUSTRIAL PRODUCTION OF ETHANOL USING AN EXTRACT AGENT. | |
| GB1390211A (en) | Process for desulphurizing hot gases | |
| GB1495452A (en) | Removal of sulphur compounds from gas streams | |
| GB1320134A (en) | Purification of water and natural gas | |
| ES8406216A1 (en) | Process for the separation of mercaptans contained in gas | |
| US4048055A (en) | Process for regenerating aqueous urea solutions | |
| US3334469A (en) | Process for removing hydrogen sulfide from natural gas | |
| US2362219A (en) | Production of alkyl sulphides | |
| SU679228A1 (en) | Method of cleaning gas mixtures from carbon monoxide by adsorption | |
| GB881532A (en) | Improvements in or relating to the recovery of hydrogen fluoride from its azeotrope with water | |
| SU650984A1 (en) | Method of purifying chlorbenzols |