Chemistry: fischer-tropsch processes; or purification or recover – Treatment of feed or recycle stream
Reexamination Certificate
2006-12-06
2010-12-21
Parsa, Jafar (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Treatment of feed or recycle stream
C518S700000, C518S703000, C518S706000
Reexamination Certificate
active
07855235
ABSTRACT:
A method to start a steady state process for producing normally gaseous, liquid and solid hydrocarbons comprises providing a synthesis gas and catalytically converting the synthesis gas into normally gaseous, liquid or solid hydrocarbons. The process involves using at least a portion of the gaseous hydrocarbons produced as a recycle stream to which hydrogen is added prior to its reintroduction into the reactors and as the activity of the catalyst converting the synthesis gas proceeds from start-up towards a steady state, the amount of recycle stream is reduced.
REFERENCES:
patent: 2602810 (1952-07-01), Montgomery et al.
patent: 2610976 (1952-09-01), Martin et al.
patent: 2904576 (1959-09-01), McGrath
patent: 4127392 (1978-11-01), Watson et al.
patent: 4626552 (1986-12-01), Arcuri
patent: 5763716 (1998-06-01), Benham et al.
patent: 2004/0077736 (2004-04-01), Steynberg
patent: 2005/0027020 (2005-02-01), Steynberg
patent: 0152652 (1985-08-01), None
patent: 845558 (1960-08-01), None
patent: WO9306041 (1993-04-01), None
patent: WO9717137 (1997-05-01), None
patent: WO9961550 (1999-12-01), None
patent: WO02059232 (2002-08-01), None
patent: WO03068715 (2003-08-01), None
patent: WO2004015028 (2004-02-01), None
patent: WO2004026994 (2004-04-01), None
patent: WO2005026292 (2005-03-01), None
patent: WO2005026293 (2005-03-01), None
Oil and Gas Journal, Sep. 6, 1971, pp. 86-90.
Parsa Jafar
Shell Oil Company
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