Title:
NATURAL GAS CONVERSION TO HYDROCARBONS AND AMMONIA
Document Type and Number:
WIPO Patent Application WO2001009038
Kind Code:
A3
Abstract:
A process for the production of hydrocarbons and ammonia, and more particularly a process for optimising the production of hydrocarbons and ammonia using a combined hydrocarbon synthesis plant and ammonia synthesis plant. Synthesis gas exiting a reforming section of the hydrocarbon synthesis process is sent to a hydrogen extraction unit, where it is divided into a hydrogen-rich stream and a hydrogen-poor stream. The hydrogen-rich stream is then fed into an ammonia synthesis process. The hydrogen-poor stream may be returned to the hydrocarbon synthesis process or may be used as a fuel gas. The process reduces emission of CO2 into the atmosphere, and requires only one reforming section and one air separation unit for both processes. Removal of hydrogen from the hydrocarbon synthesis process before the synthesis gas enters a Fischer-Tropsch reactor also lowers the H2/CO ratio of the synthesis gas, therefore resulting in better hydrocarbon selectivity. Also claimed are hydrocarbons and ammonia produced according to the process.
Inventors:
PRICE JULIAN GRAHAM (ZA)
TINDALL BARRY ANTONY (ZA)
TINDALL BARRY ANTONY (ZA)
Application Number:
PCT/ZA2000/000125
Publication Date:
August 16, 2001
Filing Date:
July 25, 2000
Export Citation:
Assignee:
SASOL TECH PTY LTD (ZA)
PRICE JULIAN GRAHAM (ZA)
TINDALL BARRY ANTONY (ZA)
PRICE JULIAN GRAHAM (ZA)
TINDALL BARRY ANTONY (ZA)
International Classes:
C01B3/02; C01B3/50; C01B3/56; C01C1/04; C01C3/02; C07C1/04; C10G2/00; (IPC1-7): C01C1/04; C01B3/50; C07C1/04
Foreign References:
| EP0342610A2 | 1989-11-23 | |||
| US5023276A | 1991-06-11 | |||
| US5245110A | 1993-09-14 | |||
| EP0770578A2 | 1997-05-02 | |||
| US4666680A | 1987-05-19 |
Download PDF: