 A Study on Method Development for
Measuring Carbon Balance in the Chemical Sequestration-Phase 2 has
been awarded to the Combustion Lab by US DOE and Paras Research
Corporation.
Three stages of carbon dioxide management and sequestration
have been proposed. These stages include CO 2 capture from power
plant flue gas -using ammonium solutions in a wet scrubber to react
with CO 2 to form ammonium bicarbonate fertilizer (stage 1), short-term
carbon storage through enhanced growth of biomass using the ammonium
bicarbonate fertilizer (stage 2), and long term carbon storage by
securely sequestering CO 2 as carbonates in underground water systems
(stage 3). By following the utilization of ammonium bicarbonate
as a fertilizer, a test protocol was developed with an ecosystem
containing soil, groundwater, biomass and atmosphere with temperature,
moisture, Ph and composites control. Sample selection, sampling
plans development, laboratory-scale experimental unit design, analytical
method development and test matrix selection were completed in Phase
1. A greenhouse will be constructed, and a series of experiments
to study carbon balance in a simulated ecosystem will be conducted
in Phase II. Three typical crops, three typical soils and three
ground waters will be used in the simulated ecosystem. Carbon-14
will be used as a tracer in the experiments. A model for carbon
transformation from ammonium bicarbonate to the terrestrial ecosystem
will be developed.
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