Water/carbonate stripping for CO.sub.2 capture adsorber regeneration and CO.sub.2 delivery to photoautotrophs

Title: Water/carbonate stripping for CO.sub.2 capture adsorber regeneration and CO.sub.2 delivery to photoautotrophs

The invention provides systems and methods for the delivery of carbon to photoautotrophs. The invention utilizes low energy regeneration of adsorbent for CO.sub.2 capture and provides for effective CO.sub.2 loading into liquids useful for photoautotroph growth and/or production of photosynthetic products, such as biofuels, via photoautotrophic culture media. The inventive system comprises a fluid/membrane/fluid contactor that provides selective transfer of molecular CO.sub.2 via a dense (non-porous) membrane from a carbonate-based CO.sub.2 snipping solution to a culture medium where the CO.sub.2 is consumed by a photoautotroph for the production of biofuels, biofuel precursors or other commercial products.

Inventors:: Chance, Ronald; Koros, William J.; McCool, Benjamin; Noel, James

Issue Date:: 2015-08-11

OSTI Identifier:: 1209485

Assignee:: Algenol Biotech LLC (Fort Myers, FL) OSTI

Patent Number(s):: 9,101,093

Application Number:: 13/417,172

Contract Number:: FOA0000096

Resource Relation:: Patent File Date: 2012 Mar 09

Research Org:: Algenol Biotech LLC, Fort Myers, FL (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES

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Works referenced in this record:

Development of practically available up-scaled high-silica CHA-type zeolite membranes for industrial purpose in dehydration of N-methyl pyrrolidone solution
journal, August 2012

Sato, Kiminori; Sugimoto, Kazunori; Shimotsuma, Naoto
Journal of Membrane Science, Vol. 409-410, p. 82-95
DOI: 10.1016/j.memsci.2012.03.032

Enthalpy of absorption of CO₂ with alkanolamine solutions predicted from reaction equilibrium constants
journal, May 2009

Kim, Inna; Hoff, Karl A.; Hessen, Erik T.
Chemical Engineering Science, Vol. 64, Issue 9, p. 2027-2038
DOI: 10.1016/j.ces.2008.12.037

CO₂ capture from coal-fired power plants based on sodium carbonate slurry; a systems feasibility and sensitivity study
journal, March 2009

Knuutila, H.; Svendsen, H.; Anttila, M.
International Journal of Greenhouse Gas Control, Vol. 3, Issue 2, p. 143-151
DOI: 10.1016/j.ijggc.2008.06.006

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