SU144839A1 - Silver catalyst regeneration method - Google Patents
Silver catalyst regeneration methodInfo
- Publication number
- SU144839A1 SU144839A1 SU724267A SU724267A SU144839A1 SU 144839 A1 SU144839 A1 SU 144839A1 SU 724267 A SU724267 A SU 724267A SU 724267 A SU724267 A SU 724267A SU 144839 A1 SU144839 A1 SU 144839A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- catalyst
- silver catalyst
- catalyst regeneration
- regeneration method
- regenerated
- Prior art date
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
Landscapes
- Catalysts (AREA)
Description
Известен р д способов регенерировани серебр ного катализатора, однако полного восстановлени свойств катализатора при регенерировании известными способами достигнуть не удаетс .A number of methods for regenerating a silver catalyst are known, however, it is not possible to achieve complete restoration of the properties of a catalyst during regeneration by known methods.
Предложен способ регенерации серебр ного катализатора, примен ющегос дл окислени этилена в окись этилена, заключающийс в последовательной обработке катализатора воздухом при 220°, этиловым спиртом, водным концентрированным аммиаком и водой.A method for regenerating a silver catalyst used for the oxidation of ethylene to ethylene oxide is proposed, consisting in the sequential treatment of the catalyst with air at 220 ° C, ethyl alcohol, aqueous concentrated ammonia and water.
Способ позвол ет восстановить активность катализатора, отравленного такими соединени ми, как сернистый и серный ангидриды, сероводород , сероокись углерода, меркаптаны, тиоэфиры, тиофен, хлористый водород, хлор и хлорпроизводные различных углеводородов.The method allows to restore the activity of the catalyst poisoned by such compounds as sulfurous and sulfuric anhydrides, hydrogen sulfide, carbon dioxide, mercaptans, thioethers, thiophene, hydrogen chloride, chlorine and chlorine derivatives of various hydrocarbons.
Авторами проведены испытани по использованию серебр ного катализатора дл окислени этилена, отравленного на 100% этилмеркаптаном , и СГ-ионами и регенерированного предлагаемым способом. При отравлении катализатора этилмеркаптаном регенерирование предлагаемым способом восстанавливает общую активность катализатора на 85%, при этом выход окиси этилена по пропущенному этилену- 81% и селективность - 97-98%.The authors have conducted tests on the use of a silver catalyst for the oxidation of ethylene, poisoned with 100% ethyl mercaptan and SG ions and regenerated by the proposed method. In case of catalyst poisoning with ethyl mercaptan, regeneration by the proposed method restores the total catalyst activity by 85%, while the yield of ethylene oxide over the missed ethylene is 81% and the selectivity is 97-98%.
При отравлении и С1- ионами, так же как и при отравлении SO2 и Cla, регенерирование предлагаемы.м способом восстанавливает свойства катализатора практически полностью при условии проведени процесса на регенерированном катализаторе при те.мпературе на 20-40° выще, чем до отравлени .In case of poisoning and C1-ions, as well as in case of poisoning with SO2 and Cla, the regeneration of the proposed method restores the properties of the catalyst almost completely under the condition that the process is carried out on the regenerated catalyst at a temperature of 20-40 ° higher than before poisoning.
Предлагаемый способ вл етс универсальным, так как дает Бозможносгь регенерировать катализатор после его отравлени люоым из комплекса серу- и хлорсодержащих веществ и в р де случаев (SOs, Cla и меркаптанами) - более эффективен, чем известные способы. Регенераци катализатора осуществл етс проведением р да последовательных операций.The proposed method is universal, since it makes it possible for the catalyst to be regenerated after it is poisoned by any complex of sulfur- and chlorine-containing substances and in a number of cases (SOs, Cla and mercaptans) is more effective than the known methods. The catalyst is regenerated by a series of sequential operations.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU724267A SU144839A1 (en) | 1961-03-31 | 1961-03-31 | Silver catalyst regeneration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU724267A SU144839A1 (en) | 1961-03-31 | 1961-03-31 | Silver catalyst regeneration method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU144839A1 true SU144839A1 (en) | 1961-11-30 |
Family
ID=48300469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU724267A SU144839A1 (en) | 1961-03-31 | 1961-03-31 | Silver catalyst regeneration method |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU144839A1 (en) |
-
1961
- 1961-03-31 SU SU724267A patent/SU144839A1/en active
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