SU741921A1 - Absorbent for cleaning gases from mercaptans - Google Patents
Absorbent for cleaning gases from mercaptans Download PDFInfo
- Publication number
- SU741921A1 SU741921A1 SU792767552A SU2767552A SU741921A1 SU 741921 A1 SU741921 A1 SU 741921A1 SU 792767552 A SU792767552 A SU 792767552A SU 2767552 A SU2767552 A SU 2767552A SU 741921 A1 SU741921 A1 SU 741921A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mercaptans
- absorbent
- cleaning gases
- regenerability
- gases
- Prior art date
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- Treating Waste Gases (AREA)
Description
Изобретение относитс к процессам абсорбционной очистки газов и может быть применено в химической и нефтехимической отрасл х промышленности. Известен р д органических веществ и смесей, которые относ тс к классу физических абсорбентов, примен емых дл очистки газов от меркаптанов. Указанные абсорбенты позвол ют проводить комплексную очистку от разных видов меркаптанов (метипмеркаптана.этилмеркаптана , пропилмеркаптана, бутилмеркаптана ), а также от сероокиси угле рода, сероуглерода, двуокиси серы, серо дорода. К таким абсорбентам относитс , например, трибутилфосфат 1 Основным недостатком этого абсорбеш-а вл етс относительно слаба зависимость растворимости меркаптанов от температуры. Это усложн ет регенерацию абсорбента, так как дл достижени полной десорбции необходима высока температура и большой расход десор- бирующего агента. В результате обьгано песорбци 1ФОВОДИТСЯ не полностью, что приводит к ухудшению степени очистки и одновременно к повышенной циркул ции абсорбента . Наиболее близким к описываемому изобретению по технической сущности и достигаемому результату вл етс абсорбент дл очистки газов от меркаптанов на основе М-метилпирролидона, который дополнительно содержит д этиленгликоль , при следующем соотнощении компонентов, вес. %: N -М етилпирролидон40-8 О Диэтиленгликоль20-6О 2. Однако этот a6cqp6eHT отличает недостаточно высока поглотительна способность (степень очистки составл ет . 72%) и плоха регенерируемость (температура регенерации составл ет 180с). Целью изобретени 5шл етс повышение поглотительной способности абсорбента и улучшение его регенерируемости. Это достигаетс тем, что абсорбеиг дп очистки газов от меркаптанов на осThe invention relates to processes for the absorption of gas purification and can be applied in the chemical and petrochemical industries. A number of organic substances and mixtures are known that belong to the class of physical absorbents used to purify gases from mercaptans. These absorbents allow complex purification from various types of mercaptans (metimercaptan, ethyl mercaptan, propyl mercaptan, butyl mercaptan), as well as carbon dioxide, carbon disulfide, sulfur dioxide, and hydrogen sulphide. Such absorbents include, for example, tributyl phosphate 1 The main disadvantage of this absorber is the relatively weak temperature dependence of mercaptans. This complicates the regeneration of the absorbent, since high temperature and high consumption of the desorbing agent are necessary to achieve complete desorption. As a result, the pesorption of 1 is completely incomplete, which leads to a deterioration in the degree of purification and at the same time to an increased circulation of the absorbent. The closest to the described invention to the technical essence and the achieved result is an absorbent for cleaning gases from mercaptans on the basis of M-methylpyrrolidone, which additionally contains d ethylene glycol, with the following ratio of components, weight. %: N -M ethyl pyrrolidone 40-8 O Diethylene glycol 20-6 O 2. However, this a6cqp6eHT is distinguished by an insufficiently high absorption capacity (purification rate is 72%) and poor regenerability (regeneration temperature is 180 s). The aim of the invention is to increase the absorption capacity of the absorbent and improve its regenerability. This is achieved by the fact that the absorption of dp gas purification from mercaptans on the basis of
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792767552A SU741921A1 (en) | 1979-04-28 | 1979-04-28 | Absorbent for cleaning gases from mercaptans |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU792767552A SU741921A1 (en) | 1979-04-28 | 1979-04-28 | Absorbent for cleaning gases from mercaptans |
Publications (1)
Publication Number | Publication Date |
---|---|
SU741921A1 true SU741921A1 (en) | 1980-06-25 |
Family
ID=20828295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU792767552A SU741921A1 (en) | 1979-04-28 | 1979-04-28 | Absorbent for cleaning gases from mercaptans |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU741921A1 (en) |
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1979
- 1979-04-28 SU SU792767552A patent/SU741921A1/en active
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