FORMULATION AND PROCESS FOR CO2 CAPTURE USING AMINO ACIDS AND BIOCATALYSTS
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United States of America Patent
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Issued Date -
May 24, 2012
app pub date -
Aug 4, 2010
filing date -
Aug 4, 2009
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Abstract
A formulation and a process for CO2 capture, where a CO2-containing gas in contacted with water, biocatalyst and an amino acid compound, enabling the dissolution and transformation of the CO2 into bicarbonate ions and hydrogen ions, producing an ion-rich solution and a CO2-depleted gas. The amino acids may present slow absorption kinetics and having elevated stability such that absorption is enhanced in combination with the biocatalyst. The amino acid compound and the biocatalyst may be selected such that the active sites of the biocatalyst benefit from proton removal facilitated by the amino acid compounds, thus improving the CO2 absorption.
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