US4092825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for base-load and peak-load power generation
Assignee: Chevron USA Inc
•
Filing: 1976-09-16
•
Granted: 1978-06-06
•
Expires: 1996-09-16
Abstract
Abstract Disclosed is an integrated process for the generation of base-load and peak-load power, particularly electrical power, from a solid carbonaceous material. A solid carbonaceous material is gasified to produce a combustible synthesis gas. A portion of this synthesis gas is contacted with a Fischer-Tropsch catalyst to produce condensable hydrocarbons. Preferably, a second portion of the synthesis gas is combusted and utilized to generate a base-load power output and the condensable hydrocarbons are utilized as a fuel as needed for peak-load power production.
Inventors
- 👤 Clark J. Egan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:21
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/26; F02C3/28; C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0485; F01; F01K; F01K23/00; F01K23/02; F01K23/06; F01K23/067; C07C2523/00; C07C2523/70; C07C2523/74; C07C2529/00; C07C2529/04; C10; C10J; C10J2300/00; C10J2300/16; C10J2300/1603; C10J2300/1606; C10J2300/164; C10J2300/1656; C10J2300/1659; C10J2300/1671; C10J2300/1693; C10J2300/18; C10J2300/1838; Y; Y02; Y02E; Y02E20/00; Y02E20/16; Y02E20/18; Y02P; Y02P20/00; Y02P20/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
151 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) contacting a first portion of said synthesis gas with a hydrocarbon synthesis catalyst, thereby forming a reaction product mixture containing water, H 2 , CO, CO 2 , oxygenated organic compounds and synthetic hydrocarbons; (c) contacting said reaction product mixture prior to formation of an aqueous phase therein with a hydrogenation catalyst under hydrogenation conditions, thereby converting said organic compounds to water and combustible hydrocarbons; (d) thereafter separating from said reaction product mixture C 3 + hydrocarbons; (e) combusting a second portion of said synthesis gas and generating power from the resulting combusted synthesis gas; and (f) combusting at least a portion of said C 3 + hydrocarbons and generating additional power from the resulting combusted hydrocarbons.
Claim 2
Dependent Claim
151 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) contacting a first portion of said synthesis gas with a hydrocarbon synthesis catalyst, thereby forming a reaction product mixture containing water, H 2 , CO, CO 2 , oxygenated organic compounds and synthetic hydrocarbons; (c) contacting said reaction product mixture prior to formation of an aqueous phase therein with a hydrogenation catalyst under hydrogenation conditions, thereby converting said organic compounds to water and combustible hydrocarbons; (d) thereafter separating from said reaction product mixture C 3 + hydrocarbons; (e) combusting a second portion of said synthesis gas and generating power from the resulting combusted synthesis gas; and (f) combusting at least a portion of said C 3 + hydrocarbons and generating additional power from the resulting combusted hydrocarbons.
Claim 3
Dependent Claim
127 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) passing said synthesis gas into a reaction zone containing a hydrocarbon synthesis catalyst and a hydrogeneration catalyst forming a reaction product mixture containing water, H 2 , CO, CO 2 , oxygenated organic compounds and synthetic hydrocarbons including propane and higher boiling hydrocarbons; (c) separating from said reaction product mixture C 3 + hydrocarbons and a combustible normally gaseous fraction; (d) combusting said gaseous fraction and generating power from said combusted fraction; and (e) combusting at least a portion of said C 3 + hydrocarbons and generating additional power from said combusted hydrocarbons.
Claim 4
Dependent Claim
127 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) passing said synthesis gas into a reaction zone containing a hydrocarbon synthesis catalyst and a hydrogeneration catalyst forming a reaction product mixture containing water, H 2 , CO, CO 2 , oxygenated organic compounds and synthetic hydrocarbons including propane and higher boiling hydrocarbons; (c) separating from said reaction product mixture C 3 + hydrocarbons and a combustible normally gaseous fraction; (d) combusting said gaseous fraction and generating power from said combusted fraction; and (e) combusting at least a portion of said C 3 + hydrocarbons and generating additional power from said combusted hydrocarbons.
Claim 5
Dependent Claim
40 words
The process of claim 2 comprising the additional step of separating from said reaction product mixture a fraction containing water and water-soluble oxygenated organic compounds and reacting said fraction with said carbonaceous material, steam and oxygen forming additional synthesis gas.
Claim 6
Dependent Claim
24 words
The process of claim 1 wherein said additional power is generated by passing said combusted hydrocarbons through an expansion turbine as the working fluid.
Claim 7
Dependent Claim
27 words
The process of claim 1 wherein in step (f) said portion of said C 3 + hydrocarbons which is combusted comprises C 5 and higher boiling hydrocarbons.
Claim 8
Dependent Claim
31 words
The process of claim 1 comprising the additional step following step (c) of separating from said reaction product mixture a fraction comprising H 2 , CO, CO 2 and light hydrocarbons.
Claim 9
Dependent Claim
24 words
The process of claim 6 comprising the additional step of combusting at least a portion of said fraction and generating power from said fraction.
Claim 10
Dependent Claim
15 words
The process of claim 1 wherein said power in steps (e) and (f) is electrical.
Claim 11
Dependent Claim
179 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) passing a first portion of said synthesis gas into a reaction zone containing a hydrocarbon synthesis catalyst and a hydrogenation catalyst and forming a reaction product mixture containing water, H 2 , CO, CO 2 and synthetic hydrocarbons; (c) separating from said reaction product mixture a gaseous first fraction comprising H 2 , CO, CO 2 and light hydrocarbons, a second fraction comprising normally liquid hydrocarbons and a third fraction comprising water; (d) combusting at least a portion of said gaseous first fraction and combusting a second portion of said synthesis gas and generating power from said combusted gaseous first fraction and said combusted second portion of said synthesis gas; and (e) generating additional power from said liquid hydrocarbons by combusting at least a portion of said hydrocarbons forming a flue gas and passing said flue gas through an expansion turbine as the working fluid.
Claim 12
Dependent Claim
179 words
A process for the generation of power from a solid carbonaceous material which comprises: (a) forming a combustible synthesis gas by reacting said carbonaceous material with steam and oxygen at an elevated temperature; (b) passing a first portion of said synthesis gas into a reaction zone containing a hydrocarbon synthesis catalyst and a hydrogenation catalyst and forming a reaction product mixture containing water, H 2 , CO, CO 2 and synthetic hydrocarbons; (c) separating from said reaction product mixture a gaseous first fraction comprising H 2 , CO, CO 2 and light hydrocarbons, a second fraction comprising normally liquid hydrocarbons and a third fraction comprising water; (d) combusting at least a portion of said gaseous first fraction and combusting a second portion of said synthesis gas and generating power from said combusted gaseous first fraction and said combusted second portion of said synthesis gas; and (e) generating additional power from said liquid hydrocarbons by combusting at least a portion of said hydrocarbons forming a flue gas and passing said flue gas through an expansion turbine as the working fluid.
Claim 13
Dependent Claim
15 words
The process of claim 9 wherein said power in steps (d) and (e) is electrical.
References Cited (Backward Citations)
US2838388A
Cited
US3985519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |