A high temperature, lithium orthosilicate based solid absorbent for post combustion CO 2 capture

R. Quinn, R. Kitzhoffer, J. Hufton, T. Golden, R. Pacciani, J. Torres, P. Solsona, C. Coe, L. Vega

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A lithium orthosilicate (Li 4SiO 4) based solid absorbent supplied by Toshiba Corporation was found to be promising for post combustion CO 2 capture. The absorbent reacts chemically with CO 2 at elevated temperatures and very large capacities can be achieved. The presence of water vapor greatly enhanced CO 2 absorption rates without affecting capacity. Exposure to flue gas containing even low levels of SO 2 resulted in an irreversible reaction with the absorbent and a decrease in CO 2 capacity. Breakthrough experiments indicated capacities as high as 6.7 mmol CO 2/g. The absorbent will likely require a thermal swing process with absorption at 550°C and regeneration at 650°C.

Original languageBritish English
Title of host publicationTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Pages503-506
Number of pages4
StatePublished - 2012
EventNanotechnology 2012: Bio Sensors, Instruments, Medical, Environment and Energy - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012 - Santa Clara, CA, United States
Duration: 18 Jun 201221 Jun 2012

Publication series

NameTechnical Proceedings of the 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012

Conference

ConferenceNanotechnology 2012: Bio Sensors, Instruments, Medical, Environment and Energy - 2012 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2012
Country/TerritoryUnited States
CitySanta Clara, CA
Period18/06/1221/06/12

Keywords

  • Carbon dioxide
  • Lithium orthosilicate
  • Post combustion capture
  • Solid absorbent

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