INTEGRATED PROCESS FOR DUAL BIOCATALYTIC CONVERSION OF CO2 GAS INTO BIO-PRODUCTS BY ENZYME ENHANCED HYDRATION AND BIOLOGICAL CULTURE

摘要

A method, process, apparatus, use and formulation for dual biocatalytic conversion of CO₂ containing gas into carbon containing bio-products by enzymatic hydration of CO₂ into bicarbonate ions in the presence of carbonic anhydrase and metabolic conversion of the bicarbonate ions into carbon containing bio-products in a biological culture. The dual biocatalytic conversion may be relatively constant with controlling a feeding of the bicarbonate ions to the biological culture in accordance with demands of the biological culture by retaining over-production of bicarbonate ions and feeding part of the over-production to the biological culture in accordance with nutrient demands of the biological culture. Bicarbonate ions may also be reconverted to generate a pure CO₂ gas stream. The CO₂ containing gas may be derived from operations of a power plant which receives a carbon-containing fuel for combustion, and the biological culture may be an algae culture.