US4713090A
Expired / Lapsed
US
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Adsorbent for separation-recovery of CO, preparing method thereof and process for separation-recovery of high purity CO, using the adsorbent
Assignee: Kansai Coke and Chemicals Co Ltd
•
Filing: 1986-09-16
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Granted: 1987-12-15
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Expires: 2006-09-16
Abstract
Abstract An adsorbent for separation - recovery of CO comprising a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina and an active carbonized material layer (b) formed thereon, on which a copper compound (Y) is carried. By applying the method of the pressure swing adsorption and/or temperature swing adsorption, using this adsorbent, high purity CO may be separated and recovered on industrial scale from converter gas and other gases containing CO.
Inventors
- 👤 Jintaro Yokoe
- 👤 Masami Takeuchi
- 👤 Toshiaki Tsuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:04
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/02; B01D53/04; B01D53/047; B01D53/0462; B01J; B01J20/00; B01J20/02; B01J20/0203; B01J20/0233; B01J20/0237; B01J20/06; B01J20/08; B01J20/10; B01J20/103; B01J20/20; B01J20/28; B01J20/28002; B01J20/28004; B01J20/28054; B01J20/28078; B01J20/28088; B01J20/30; B01J20/3078; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; B01J20/324; B01J20/3289; B01J20/3291; B01J20/3293; C; C01; C01B; C01B32/00; C01B32/40; B01D2253/00; B01D2253/10; B01D2253/102; B01D2253/104; B01D2253/106; B01D2253/30; B01D2253/302; B01D2253/31; B01D2256/00; B01D2256/20; B01J2220/00; B01J2220/40; B01J2220/42; B01J2220/48; B01J2220/4812; Y; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/901
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
44 words
An adsorbent for separation-recovery of CO comprising a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof, on which a copper compound (Y) is carried.
Claim 2
Dependent Claim
44 words
An adsorbent for separation-recovery of CO comprising a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof, on which a copper compound (Y) is carried.
Claim 3
Dependent Claim
32 words
The adsorbent according to claim 1 wherein said carrier (a) formed of silica and/or alumina has a fine pore size distribution with maximum pore diameters occurring in a range of 60-120 Å.
Claim 4
Dependent Claim
37 words
The adsorbent according to claim 1 wherein the proportion by weight of said carbonized material layer (b) formed on the surface said carrier (a) is 0.1-10 parts by weight to 100 parts by weight of the latter.
Claim 5
Dependent Claim
24 words
The adsorbent according to claim 1 wherein said copper compound (Y) is a cuprous or cupric compound or reduction products from the cupric compound.
Claim 6
Dependent Claim
26 words
The adsorbent according to claim 1 wherein the proportion of said copper compound (Y) carried on said composite carrier (X) to the latter is 0.5-10 m-mol/g.
Claim 7
Independent Claim
65 words
A method of preparing an adsorbent for separation-recovery of CO comprising the steps of dissolving or dispersing a copper compound (Y) in a solvent, contacting the resulting solvent or dispersion with a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof and thereafter, removing the solvent.
Claim 8
Independent Claim
65 words
A method of preparing an adsorbent for separation-recovery of CO comprising the steps of dissolving or dispersing a copper compound (Y) in a solvent, contacting the resulting solvent or dispersion with a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof and thereafter, removing the solvent.
Claim 9
Dependent Claim
32 words
The method according to claim 6 wherein said carrier (a) formed of silica and/or alumina has a fine pore size distribution with maximum pore diameters occurring in a range of 60-120 Å.
Claim 10
Dependent Claim
37 words
The method of claim 6 wherein the proportion by weight of said carbonized material layer (b) formed on the surface of said carrier (a) is 0.1-10 parts by weight to 100 parts by weight of the latter.
Claim 11
Dependent Claim
23 words
The method of claim 6 wherein said copper compound (Y) is a cuprous compound, cupric compound or reduction products from the cupric compound.
Claim 12
Dependent Claim
25 words
The method of claim 6 wherein the proportion of said copper compound (Y) carried on said composite carrier (X) to the latter is 0.5-10 m-mol/g.
Claim 13
Dependent Claim
77 words
The method according to claim 6 characterized in that the solution or dispersion prepared by dissolving or dispersing the copper compound (Y) in a solvent is contacted with the composite carrier (X) composed of the carrier (a) formed of silica and/or alumina as its nucleus and the active carbonized material layer (b) formed on the surface thereof and thereafter, the solvent is removed and furthermore, the product is heat-treated in an inert gas or reducing gas atmosphere.
Claim 14
Dependent Claim
83 words
The method according to claim 6 characterized in that a cuprous compound is used as the copper compound (Y), that the solution prepared by dissolving said cuprous compound in a solvent is used in an amount falling in a range of the saturation absorption factor ±10% on a basis of the composite carrier (X) and that the contacting between the composite carrier (X) and this solution is made in the state of the composite carrier (X) having been heated to 50°-150° C. previously.
Claim 15
Dependent Claim
45 words
The method according to claim 12 characterized in that the contacting between the composite carrier (X) and the solution is made under a state of this solution having been heated to 40°-100° C., with the composite carrier (X) having been heated to 50°-150° C. previously.
Claim 16
Dependent Claim
27 words
The method according to claim 12 characterized in that after removing the solvent, the product is further heat-treated in an inert gas or a reducing gas atmosphere.
Claim 17
Dependent Claim
12 words
The method according to claim 12 wherein the solvent is hydrochloric acid.
Claim 18
Dependent Claim
68 words
A process for separation-recovery of high purity CO from any mixed gas containing CO by the method of pressure swing adsorption and/or temperature swing adsorption, which comprises using as the adsorbent a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof, on which a copper compound (Y) is carried.
Claim 19
Dependent Claim
68 words
A process for separation-recovery of high purity CO from any mixed gas containing CO by the method of pressure swing adsorption and/or temperature swing adsorption, which comprises using as the adsorbent a composite carrier (X) composed of a carrier (a) formed of silica and/or alumina as its nucleus and an active carbonized material layer (b) formed on the surface thereof, on which a copper compound (Y) is carried.
Claim 20
Dependent Claim
32 words
The process according to claim 16 wherein said carrier (a) formed of silica and/or alumina has a fine pore size distribution with maximum pore diameters occurring in a range of 60-120 Å.
Claim 21
Dependent Claim
38 words
The process according to claim 16 wherein the proportion by weight of said carbonized material layer (b) formed on the surface of said carrier (a) is 0.1-10 parts by weight to 100 parts by weight of the latter.
Claim 22
Dependent Claim
23 words
The process according to claim 16 wherein said copper compound (Y) is cuprous or cupric compound or reduction products from the cupric compound.
Claim 23
Dependent Claim
26 words
The process according to claim 16 wherein the proportion of said copper compound (Y) carried on said composite carrier (X) to the latter is 0.5-10 m-mol/g.
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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) | 1990-12-14 | 1991-06-15 | 1991-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-14 | 1995-06-15 | 1995-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-14 | 1999-06-15 | 1999-12-15 | $7700.00 | Window Closed / Lapsed |