RECOVERY AND SEQUESTRATION OF CO2 FROM STATIONARY COMBUSTION SYSTEMS BY PHOTOSYNTHESIS OF MICROALGAE Page: 3 of 28
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Most of the anthropogenic emissions of carbon dioxide result from the combustion of
fossil fuels for energy production. Photosynthesis has long been recognized as a means, at least
in theory, to sequester anthropogenic carbon dioxide. Aquatic microalgae have been identified
as fast growing species whose carbon fixing rates are higher than those of land-based plants by
one order of magnitude. Physical Sciences Inc. (PSI), Aquasearch, and the Hawaii Natural
Energy Institute at the University of Hawaii are jointly developing technologies for recovery and
sequestration of CO2 from stationary combustion systems by photosynthesis of microalgae. The
research is aimed primarily at demonstrating the ability of selected species of microalgae to
effectively fix carbon from typical power plant exhaust gases.
This report covers the reporting period 1 January to 31 March 2003 in which PSI,
Aquasearch and University of Hawaii conducted their tasks. Based on the work during the
previous reporting period, PSI conducted preparation work on direct feeding of coal combustion
gas to microalgae and developed a design concept for photobioreactors for biofixation of CO2
and photovoltaic power generation. Aquasearch continued their effort on characterization of
microalgae suitable for CO2 sequestration and preparation for pilot scale demonstration.
University of Hawaii continued effort on system optimization of the CO2 sequestration system.
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Nakamura, Dr. T. RECOVERY AND SEQUESTRATION OF CO2 FROM STATIONARY COMBUSTION SYSTEMS BY PHOTOSYNTHESIS OF MICROALGAE, report, May 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc739533/m1/3/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.