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Title:
INTEGRATED CARBON CAPTURE AND ALGAE CULTURE
Document Type and Number:
WIPO Patent Application WO/2012/078970
Kind Code:
A3
Abstract:
The feasibility of using CO2 from a concentrated source to grow microalgae is limited by the high cost of CO2 capture and transportation, as well as significant CO2 loss during algae culture. Another challenge is the inability of algae in using CO2 during night while CO2 is continuously produced from the source. To address these challenges, this invention provides a process in which CO2 is captured as bicarbonate and used as feedstock for algae culture. Then the carbonate is regenerated in the algae culture process as absorbent to capture more CO2, which is converted to bicarbonate for use as feedstock, etc. This process significantly reduces carbon capture costs since it avoids the energy for carbonate regeneration. Also, transporting a solid or aqueous bicarbonate solution has a much lower cost than transporting compressed CO2, and using bicarbonate provides a better alternative for CO2 delivery to algae culture systems than supplying CO2 gas.

Inventors:
CHEN SHULIN (US)
CHI ZHANYOU (US)
XIE YUXIAO (US)
ZHAO BAISUO (US)
Application Number:
PCT/US2011/064127
Publication Date:
August 16, 2012
Filing Date:
December 09, 2011
Export Citation:
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Assignee:
UNIV WASHINGTON STATE RES FDN (US)
CHEN SHULIN (US)
CHI ZHANYOU (US)
XIE YUXIAO (US)
ZHAO BAISUO (US)
International Classes:
C12N1/12; C12M3/02; C12N1/20; C12P7/64; C12R1/01; C12R1/89
Domestic Patent References:
WO2011159568A12011-12-22
Foreign References:
US20080087165A12008-04-17
US20090081743A12009-03-26
US7842264B22010-11-30
US20100021981A12010-01-28
US20110011261A12011-01-20
KR20110051329A2011-05-18
Other References:
ZHANYOU CHI ET AL.: "Bicarbonate produced from carbon capture for algae cul- ture.", TRENDS IN BIOTECHNOLOGY., vol. 29, no. 11, November 2011 (2011-11-01), pages 537 - 541
Attorney, Agent or Firm:
WHITHAM, Michael, E. et al. (Curtis Christofferson & Cook, P.C.,11491 Sunset Hills Road, Suite 34, Reston VA, US)
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