Gas separation: processes – Liquid contacting – And degasification of a liquid
Reexamination Certificate
2005-11-15
2005-11-15
Smith, Duane S. (Department: 1724)
Gas separation: processes
Liquid contacting
And degasification of a liquid
C048S061000, C048S127900, C048S198300, C095S172000, C095S177000, C095S266000, C096S193000, C096S234000, C422S234000
Reexamination Certificate
active
06964696
ABSTRACT:
An apparatus and method for recovering a clean liquid condensate from a synthesis gas at elevated temperatures and pressures. The apparatus includes at least one heat exchanger for reducing the temperature of the synthesis gas down to below 200° F. (93° C.) so as to form a syngas condensate at elevated pressure. The syngas condensate is flashed so that it separates into a liquid phase condensate and a gas phase. The liquid phase condensate comprises water, dissolved ammonia and particulates. The gas phase contains carbon monoxide, carbon dioxide, various sulfur containing compounds and trace amounts of other compounds that may have been dissolved in the syngas condensate. The gas phase is removed from the flash tank and sent to a sour gas treatment unit and/or flare. The liquid phase condensate is then filtered so as to remove larger sized particulates. Clean liquid condensate is reused in the gasification process.
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Malatak William A.
Pan Brad X.
Cantor & Colburn LLP
Smith Duane S.
Texaco Inc.
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