skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: 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:
 [1];  [2];  [1]
  1. Champaign, IL
  2. 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}
}

Patent:

Save / Share: