CO2 Capture by Absorption With Potassium Carbonate

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Description

The objective of this work is to improve the process for CO{sub 2} capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous K{sub 2}CO{sub 3} promoted by piperazine. CO{sub 2} mass transfer rates are second order in piperazine concentration and increase with ionic strength. Modeling of stripper performance suggests that 5 m K{sup +}/2.5 m PZ will require 25 to 46% less heat than 7 m MEA. The first pilot plant campaign was completed on June 24. The CO{sub 2} penetration through the absorber with 20 feet of Flexipac{trademark} 1Y varied from 0.6 to 16% as the inlet CO{sub ... continued below

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52 pages

Creation Information

Rochelle, Gary T.; Chen, Eric; Cullinane, J.Tim; Hilliard, Marcus; Lu, Jennifer; Oyenekan, Babatunde et al. July 29, 2004.

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Description

The objective of this work is to improve the process for CO{sub 2} capture by alkanolamine absorption/stripping by developing an alternative solvent, aqueous K{sub 2}CO{sub 3} promoted by piperazine. CO{sub 2} mass transfer rates are second order in piperazine concentration and increase with ionic strength. Modeling of stripper performance suggests that 5 m K{sup +}/2.5 m PZ will require 25 to 46% less heat than 7 m MEA. The first pilot plant campaign was completed on June 24. The CO{sub 2} penetration through the absorber with 20 feet of Flexipac{trademark} 1Y varied from 0.6 to 16% as the inlet CO{sub 2} varied from 3 to 12% CO{sub 2} and the gas rate varied from 0.5 to 3 kg/m{sup 2}-s.

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52 pages

Notes

OSTI as DE00829575

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  • Other Information: PBD: 29 Jul 2004

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  • Report No.: NONE
  • Grant Number: FC26-02NT41440
  • DOI: 10.2172/829575 | External Link
  • Office of Scientific & Technical Information Report Number: 829575
  • Archival Resource Key: ark:/67531/metadc779792

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 29, 2004

Added to The UNT Digital Library

  • Dec. 3, 2015, 9:30 a.m.

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  • Oct. 4, 2017, 5:16 p.m.

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Rochelle, Gary T.; Chen, Eric; Cullinane, J.Tim; Hilliard, Marcus; Lu, Jennifer; Oyenekan, Babatunde et al. CO2 Capture by Absorption With Potassium Carbonate, report, July 29, 2004; Austin, Texas. (digital.library.unt.edu/ark:/67531/metadc779792/: accessed May 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.