US4765808A
Expired / Lapsed
US
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Separation of carbon monoxide from nitrogen with Ba exchanged zeolite X
Assignee: Union Showa KK
•
Filing: 1987-09-28
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Granted: 1988-08-23
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Expires: 2007-09-28
Abstract
Abstract A crystalline zeolite having, except for water crystallization, the formula: Ba.sub.43x Na.sub.86(1-x) [(AlO.sub.2).sub.86 (SiO.sub.2).sub.104 ](I) wherein x is a number from 0.6 to 0.8. This crystalline zeolite can be mixed with a binder, followed by the calcination. Thus, a zeolitic molecular sieve agglomerate suitable for use in the separation and/or removal of a specific component (e.g., carbon monoxide, oxygen, carbon dioxide, or water vapor) from a fluid stream containing the same.
Inventors
- 👤 Ei Oigo
- 👤 Yoshitaka Noguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:26
CPC Classifications
B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/183; C; C01; C01B; C01B13/00; C01B13/02; C01B13/0229; C01B13/0248; C01B13/0259; C01B13/0262; C01B13/027; C01B21/00; C01B21/04; C01B21/0405; C01B21/0433; C01B21/045; C01B21/0455; C01B21/0466; C01B32/00; C01B32/40; C01B39/00; C01B39/02; C01B39/026; C01B2210/00; C01B2210/0043; C01B2210/0045; C01B2210/0046; C01B2210/005; Y; Y10; Y10S; Y10S95/00; Y10S95/90; Y10S95/902
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
59 words
A process for separating carbon monoxide from a fluid containing carbon monoxide and nitrogen comprising treating the fluid with a zeolitic molecular sieve agglomerate comprising a bonded product of a crystalline zeolite and a binder, said crystalline zeolite having, except for water of crystallization, the formula: Ba.sub.43x Na.sub.86(1-x) [(AlO.sub.2).sub.86 (SiO.sub.2).sub.106 ](I) wherein x is numbered from 0.6 to 0.8.
Claim 2
Dependent Claim
59 words
A process for separating carbon monoxide from a fluid containing carbon monoxide and nitrogen comprising treating the fluid with a zeolitic molecular sieve agglomerate comprising a bonded product of a crystalline zeolite and a binder, said crystalline zeolite having, except for water of crystallization, the formula: Ba.sub.43x Na.sub.86(1-x) [(AlO.sub.2).sub.86 (SiO.sub.2).sub.106 ](I) wherein x is numbered from 0.6 to 0.8.
Claim 3
Dependent Claim
22 words
A process as claimed in claim 1, wherein the weight ratio of the crystalline zeolite to the binder is 70:30 to 90:10.
Claim 4
Dependent Claim
13 words
A process as claimed in claim 1, wherein x is 0.64 to 0.78.
Claim 5
Dependent Claim
16 words
A process as claimed in claim 1, wherein x is a number from 0.66 to 0.77.
Claim 6
Dependent Claim
20 words
A process as claimed in claim 1, wherein the agglomerate comprises particles having a size of 60 to 80 meshes.
Claim 7
Dependent Claim
23 words
A process as claimed in claim 1, wherein the carbon monoxide/nitrogen separation coefficient is in the range of about 3.75 to about 3.90.
Claim 8
Dependent Claim
24 words
A process as claimed in claim 1, wherein the nitrogen retention time is about 1.10 and the carbon monoxide retention time is about 3.86.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1991-08-23 | 1992-02-22 | 1992-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-08-23 | 1996-02-22 | 1996-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-08-23 | 2000-02-22 | 2000-08-23 | $7700.00 | Window Closed / Lapsed |