Integrated vacuum absorption steam cycle gas separation
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.
- Inventors:
-
- Champaign, IL
- Urbana, IL
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1032981
- Patent Number(s):
- 8062408
- Application Number:
- 11/801,197
- Assignee:
- The Board of Trustees of the University of Illinois (Urbana, IL)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
- DOE Contract Number:
- FC26-03NT41994
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Citation Formats
Chen, Shiaguo, Lu, Yonggi, and Rostam-Abadi, Massoud. Integrated vacuum absorption steam cycle gas separation. United States: N. p., 2011.
Web.
Chen, Shiaguo, Lu, Yonggi, & Rostam-Abadi, Massoud. Integrated vacuum absorption steam cycle gas separation. United States.
Chen, Shiaguo, Lu, Yonggi, and Rostam-Abadi, Massoud. Tue .
"Integrated vacuum absorption steam cycle gas separation". United States. https://www.osti.gov/servlets/purl/1032981.
@article{osti_1032981,
title = {Integrated vacuum absorption steam cycle gas separation},
author = {Chen, Shiaguo and Lu, Yonggi and Rostam-Abadi, Massoud},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2011},
month = {11}
}
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