IT1077740B - Regenerating catalyst contaminated by coke, esp. cracking catalyst - with controlled oxidn. of carbon monoxide, by oxidn. in presence of activator, esp. noble metal - Google Patents
Regenerating catalyst contaminated by coke, esp. cracking catalyst - with controlled oxidn. of carbon monoxide, by oxidn. in presence of activator, esp. noble metalInfo
- Publication number
- IT1077740B IT1077740B IT4802977A IT4802977A IT1077740B IT 1077740 B IT1077740 B IT 1077740B IT 4802977 A IT4802977 A IT 4802977A IT 4802977 A IT4802977 A IT 4802977A IT 1077740 B IT1077740 B IT 1077740B
- Authority
- IT
- Italy
- Prior art keywords
- oxidn
- catalyst
- esp
- activator
- regeneration
- 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
- Y02P20/141—Feedstock
Abstract
A catalyst is regenerated with simultaneous, controlled oxidn. of CO, by (a) feeding the catalyst into a regeneration zone; (b) separately feeding into the zone an activator for oxidn. of CO, in an amt. to activate oxidn. of CO to CO2; (c) feeding a regeneration gas contg. O2 into the zone, in amt. to burn off the coke and to give sufficient O2 for the required degree of combustion of the CO; (d) reacting a 1st part of the regeneration gas with the catalyst, under conditions to eliminate the coke and produce an effluent gas contg. CO and to cause combustion of CO to CO2. Process further comprises (e) at the same time contacting the effluent gas and a 2nd part of the regeneration gas with the activator, in the regeneration zone and in presence of the regenerated catalyst. This results in (1) supplying exothermal heat of reaction, to operate the regeneration zone, and (2) reducing the amt. of CO in the effluent gas. The catalyst is esp. from catalytic cracking of hydrocarbons. Cracking is in partic. at 420-600 degrees C, 1-4.5 atmos., catalyst:hydrocarbon ratio of 3-20, and contact time of 1-30 (1-10) seconds. The method of feeding the activator for CO oxidn. is economical. The process is flexible and can be applied to all fluid catalytic cracking processes. Heat damage to the regeneration plant is avoided by the controlled oxidn. of CO.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/737,358 US4108795A (en) | 1976-02-02 | 1976-11-01 | Method of regenerating coke-contaminated catalyst with simultaneous combustion of carbon monoxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IT1077740B true IT1077740B (en) | 1985-05-04 |
Family
ID=24963604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IT4802977A IT1077740B (en) | 1976-11-01 | 1977-02-14 | Regenerating catalyst contaminated by coke, esp. cracking catalyst - with controlled oxidn. of carbon monoxide, by oxidn. in presence of activator, esp. noble metal |
Country Status (1)
| Country | Link |
|---|---|
| IT (1) | IT1077740B (en) |
-
1977
- 1977-02-14 IT IT4802977A patent/IT1077740B/en active
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