US4743276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of separating carbon monoxide and carbon monoxide adsorbent used in this method
Assignee: JFE Engineering Corp
•
Filing: 1986-12-31
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Granted: 1988-05-10
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Expires: 2006-12-31
Abstract
Abstract In a method of the invention for selectively adsorbing CO in a gas mixture containing at least CO and CO2 with an adsorbent and desorbing the adsorbed CO, the adsorbent carries one metal or a mixture of metals selected from Ni, Mn, Rh, Cu(I) and Ag, and an adsorption temperature is set to be 50 DEG to 250 DEG C. to allow a single-step treatment.
Inventors
- 👤 Taisuke Nishida
- 👤 Kazuo Tajima
- 👤 Yo Osada
- 👤 Osamu Shigyo
- 👤 Hiroaki Taniguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:25
CPC Classifications
C; C10; C10K; C10K3/00; B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01J; B01J20/00; B01J20/02; B01J20/0203; B01J20/0222; B01J20/0225; B01J20/0233; B01J20/10; B01J20/16; B01J20/18; B01J20/186; B01J20/30; B01J20/3078; B01J20/3092; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; B01J20/34; B01J20/3408; B01J20/3433; B01J20/3483; B01J20/3491; C10K1/00; C10K1/32; B01D2253/00; B01D2253/10; B01D2253/106; B01D2253/108; B01D2253/1085; B01D2253/30; B01D2253/302; B01D2253/308; B01D2256/00; B01D2256/20; B01D2258/00; B01D2258/06; B01J2220/00; B01J2220/50; B01J2220/60; B01J2220/64; B01J2220/66; Y; Y02; Y02C; Y02C20/00; Y02C20/40; Y02P; Y02P20/00; Y02P20/151; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/902
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A method of recovering carbon monoxide in a gas mixture containing at least carbon monoxide and carbon dioxide, comprising: selectively adsorbing carbon monoxide in the gas mixture on a Cu(I) adsorbent supported on a zeolite carrier selected from the group consisting of Y-type zeolite and mordenite-type zeolite and having a silica/alumina ratio of not more than 10, an effective pore diameter of not less than 0.38 nm (3.8A) and capable of adsorbing carbon monoxide, the adsorption temperature being 80° C. to 250° C.; separating the adsorbed carbon monoxide; and recovering the separated carbon monoxide.
Claim 2
Independent Claim
94 words
A method of recovering carbon monoxide in a gas mixture containing at least carbon monoxide and carbon dioxide, comprising: selectively adsorbing carbon monoxide in the gas mixture on a Cu(I) adsorbent supported on a zeolite carrier selected from the group consisting of Y-type zeolite and mordenite-type zeolite and having a silica/alumina ratio of not more than 10, an effective pore diameter of not less than 0.38 nm (3.8A) and capable of adsorbing carbon monoxide, the adsorption temperature being 80° C. to 250° C.; separating the adsorbed carbon monoxide; and recovering the separated carbon monoxide.
Claim 3
Dependent Claim
16 words
The method of claim 1, wherein the adsorption temperature is from 80° C. to 150° C.
Claim 4
Dependent Claim
16 words
The method of claim 1, wherein the adsorption temperature is from 150° C. to 250° C.
Claim 5
Dependent Claim
13 words
The method of claim 3, wherein the zeolite carrier is a Y-type zeolite.
Claim 6
Dependent Claim
16 words
The method of claim 4, wherein the gas mixture contains at least 60% of carbon monoxide.
Claim 7
Dependent Claim
13 words
The method of claim 1, wherein the zeolite carrier is a Y-type zeolite.
Claim 8
Dependent Claim
16 words
The method of claim 1, wherein the gas mixture contains at least 20% of carbon monoxide.
Claim 9
Dependent Claim
12 words
The method of claim 1, wherein the gas mixture is converter gas.
Claim 10
Dependent Claim
16 words
The method of claim 1, wherein the gas mixture contains at least 60% of carbon monoxide.
Claim 11
Dependent Claim
13 words
The method of claim 1 wherein the zeolite carrier is a mordenite-type zeolite.
Claim 12
Dependent Claim
57 words
The method of claim 1, wherein the gas mixture is adiabatically compressed at a pressure of 0.5 kg/cm 2 .G to 7 kg/cm 2 .G by a compressor to boost a gas temperature to the adsorption temperature of 80° C. to 250° C., and carbon monoxide in the gas mixture is adsorbed with the adsorbent and removed.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-10 | 1991-11-09 | 1992-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-10 | 1995-11-09 | 1996-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-10 | 1999-11-09 | 2000-05-10 | $7700.00 | Window Closed / Lapsed |