Chemistry: fischer-tropsch processes; or purification or recover – Miscellaneous
Reexamination Certificate
2005-10-25
2005-10-25
Parsa, J. (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Miscellaneous
C518S700000, C095S158000, C095S159000
Reexamination Certificate
active
06958364
ABSTRACT:
A process for recovering light Fischer-Tropsch hydrocarbons from a rich tail gas produced from a Fischer-Tropsch synthesis operation which comprises: (a) recovering separately from a Fischer-Tropsch synthesis operation a Fischer-Tropsch condensate and a hydrocarbon rich Fischer-Tropsch tail gas; (b) cooling the Fischer-Tropsch condensate and Fischer-Tropsch tail gas; (c) using the cooled Fischer-Tropsch condensate as a lean oil to adsorb at least a portion of the light Fischer-Tropsch hydrocarbons present in the Fischer-Tropsch tail gas, whereby a rich oil mixture comprising Fischer-Tropsch condensate and light Fischer-Tropsch hydrocarbons is formed; and (d) collecting the rich oil mixture.
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patent: WO 02/14242 (2002-02-01), None
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C. Judson King, “Separation Processes”, McGraw-Hill, Inc. 1971, pp. 347-350.
R. N. Maddox, “Gas Absorption” in “‘Chemical Engineers’ Handbook”, McGraw-Hill, Inc. 1973, Section 14, p. 14-2.
Clarke Simon
MacPherson Stuart R.
Ambrosius James W.
Chevron U.S.A. Inc.
Parsa J.
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