MEMBRANE PROCESS TO SEQUESTER CO2 FROM POWER PLANT FLUE GAS

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The objective of this project was to assess the feasibility of using a membrane process to capture CO2 from coal-fired power plant flue gas. During this program, MTR developed a novel membrane (Polaris™) with a CO2 permeance tenfold higher than commercial CO2-selective membranes used in natural gas treatment. The Polaris™ membrane, combined with a process design that uses a portion of combustion air as a sweep stream to generate driving force for CO2 permeation, meets DOE post-combustion CO2 capture targets. Initial studies indicate a CO2 separation and liquefaction cost of $20 - $30/ton CO2 using about 15% of the plant ... continued below

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Merkel, Tim; Amo, Karl; Baker, Richard; Daniels, Ramin; Friat, Bilgen; He, Zhenjie et al. March 31, 2009.

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Description

The objective of this project was to assess the feasibility of using a membrane process to capture CO2 from coal-fired power plant flue gas. During this program, MTR developed a novel membrane (Polaris™) with a CO2 permeance tenfold higher than commercial CO2-selective membranes used in natural gas treatment. The Polaris™ membrane, combined with a process design that uses a portion of combustion air as a sweep stream to generate driving force for CO2 permeation, meets DOE post-combustion CO2 capture targets. Initial studies indicate a CO2 separation and liquefaction cost of $20 - $30/ton CO2 using about 15% of the plant energy at 90% CO2 capture from a coal-fired power plant. Production of the Polaris™ CO2 capture membrane was scaled up with MTR’s commercial casting and coating equipment. Parametric tests of cross-flow and countercurrent/sweep modules prepared from this membrane confirm their near-ideal performance under expected flue gas operating conditions. Commercial-scale, 8-inch diameter modules also show stable performance in field tests treating raw natural gas. These findings suggest that membranes are a viable option for flue gas CO2 capture. The next step will be to conduct a field demonstration treating a realworld power plant flue gas stream. The first such MTR field test will capture 1 ton CO2/day at Arizona Public Service’s Cholla coal-fired power plant, as part of a new DOE NETL funded program.

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  • Report No.: None
  • Grant Number: FC26-07NT43085
  • DOI: 10.2172/1015458 | External Link
  • Office of Scientific & Technical Information Report Number: 1015458
  • Archival Resource Key: ark:/67531/metadc832794

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  • March 31, 2009

Added to The UNT Digital Library

  • May 19, 2016, 3:16 p.m.

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  • Nov. 29, 2016, 7:56 p.m.

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Merkel, Tim; Amo, Karl; Baker, Richard; Daniels, Ramin; Friat, Bilgen; He, Zhenjie et al. MEMBRANE PROCESS TO SEQUESTER CO2 FROM POWER PLANT FLUE GAS, report, March 31, 2009; United States. (digital.library.unt.edu/ark:/67531/metadc832794/: accessed August 17, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.