Gas separation: processes – Liquid contacting – And degasification of a liquid
Reexamination Certificate
2007-05-08
2011-11-22
Smith, Duane (Department: 1776)
Gas separation: processes
Liquid contacting
And degasification of a liquid
C095S168000, C095S191000, C095S207000
Reexamination Certificate
active
08062408
ABSTRACT:
Methods and systems for separating a targeted gas from a gas stream emitted from a power plant. The gas stream is brought into contact with an absorption solution to preferentially absorb the targeted gas to be separated from the gas stream so that an absorbed gas is present within the absorption solution. This provides a gas-rich solution, which is introduced into a stripper. Low pressure exhaust steam from a low pressure steam turbine of the power plant is injected into the stripper with the gas-rich solution. The absorbed gas from the gas-rich solution is stripped in the stripper using the injected low pressure steam to provide a gas stream containing the targeted gas. The stripper is at or near vacuum. Water vapor in a gas stream from the stripper is condensed in a condenser operating at a pressure lower than the stripper to concentrate the targeted gas. Condensed water is separated from the concentrated targeted gas.
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Chen Shiaguo
Lu Yonggi
Rostam-Abadi Massoud
Greer Burns & Crain Ltd.
Smith Duane
The Board of Trustees of the University of Illinois
Wu Ives
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