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US4139550A
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Aromatics from synthesis gas
Assignee: Sunoco Inc R&M
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Filing: 1978-03-27
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Granted: 1979-02-13
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Expires: 1998-03-27
Abstract
Abstract Aromatic hydrocarbons useful as fuels are formed by passing a mixture of CO and hydrogen (synthesis gas) over a mixture of a copper-chromium promoted iron catalyst and a type Y mole sieve at elevated temperatures and pressures.
Inventors
- 👤 Walter H. Seitzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:56
CPC Classifications
C; C10; C10G; C10G2/00; C10G2/30; C10G2/32; C10G2/33; C10G2/334; B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J29/084; B01J29/16; B01J29/166; B01J35/00; B01J35/19
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
152 words
The process for the preparation of a liquid aromatic fuel mixture suitable for use in automobile engines which comprises passing at an hourly space velocity of from about 1,000 to 10,000, a mixture of substantially pure CO and hydrogen at temperatures of from about 300° to 350° C., and pressures of from about 100 to 1500 psig over a catalyst comprising a physical mixture of a copper-chromium promoted iron and a type Y molecular sieve having a sodium cation content of less than about 0.2 wt.%, an SiO 2 /Al 2 O 3 weight ratio of less than about 6.0, and an NH 4 O content of less than about 4 wt.%, wherein the mole ratio of CO to H 2 is in the range of about 1.5:1 to 1:1.5, and the ratio of iron catalyst to molecular sieve is about 0.1 to 10.0 by volume, and recovering said liquid aromatic mixture.
Claim 2
Dependent Claim
152 words
The process for the preparation of a liquid aromatic fuel mixture suitable for use in automobile engines which comprises passing at an hourly space velocity of from about 1,000 to 10,000, a mixture of substantially pure CO and hydrogen at temperatures of from about 300° to 350° C., and pressures of from about 100 to 1500 psig over a catalyst comprising a physical mixture of a copper-chromium promoted iron and a type Y molecular sieve having a sodium cation content of less than about 0.2 wt.%, an SiO 2 /Al 2 O 3 weight ratio of less than about 6.0, and an NH 4 O content of less than about 4 wt.%, wherein the mole ratio of CO to H 2 is in the range of about 1.5:1 to 1:1.5, and the ratio of iron catalyst to molecular sieve is about 0.1 to 10.0 by volume, and recovering said liquid aromatic mixture.
Claim 3
Dependent Claim
30 words
The process according to claim 1 wherein the product comprises about 25 to 50% by weight of aromatics, and has a boiling range of from about 38° to 350° C.
Claim 4
Dependent Claim
29 words
The process according to claim 1 wherein the promoted iron catalyst component comprises 1 to 20 wt.% copper, 1 to 20 wt.% chromium, and 2 to 98 wt.% iron.
Claim 5
Dependent Claim
25 words
The process according to claim 1 wherein the promoted iron catalyst component is a 1:1 to 1:2 volume ratio mixture of copper chromite and iron.
References Cited (Backward Citations)
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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) | 1982-02-12 | 1982-08-14 | 1983-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-12 | 1986-08-14 | 1987-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-12 | 1990-08-14 | 1991-02-13 | $7700.00 | Window Closed / Lapsed |