Abstract:
A formulation and process for capturing CO2 use an absorption mixture containing water, biocatalysts and a carbonate compound. The process includes contacting a CO2-containing gas with the absorption mixture to enable dissolution and transformation of CO2 into bicarbonate and hydrogen ions, thereby producing a CO2-depleted gas and an ion-rich solution, followed by subjecting the ion-rich solution to desorption. The biocatalyst improves absorption of the mixture comprising carbonate compounds and the carbonate compound promotes release of the bicarbonate ions from the ion-rich solution during desorption, producing a CO2 gas stream and an ion-depleted solution.
Abstract:
An isolated polypeptide having carbonic anhydrase activity, the sequence of which corresponds to modified human carbonic anhydrase II is described. The isolated polypeptide comprises the mutations A23C, S99C, L202C, C205S and V241C and the polypeptide has increased physical stability compared to wild type carbonic anhydrase II. Further, the polypeptide comprises disulfide bridges between C23 and C202 and/or between C99 and C241.
Abstract:
A microorganism including a foreign gene encoding a protein having a hydroxylase activity that reduces the concentration of CHnF4-n (n is an integer of 0 to 3) in a sample, as well as a composition including the microorganism or lysate thereof, and a method of reducing the concentration of CHnF4-n in a sample using the microorganism or lysate.
Abstract:
The present invention relates to a carbonic anhydrase, a nucleic acid molecule encoding the carbonic anhydrase, a recombinant vector including the nucleic acid molecule, a host cell transformed with the recombinant vector, and a method of preparing the carbonic anhydrase using the host cell. The carbonic anhydrase of the present invention has an excellent stability at high temperature to exhibit a carbon dioxide capturing activity even at high temperature, thereby being applied to a carbon dioxide capturing process performed at high temperature with many advantages in view of economic aspect due to mass-production of expression system.
Abstract:
Methods and systems to achieve clean fuel processing systems in which carbon dioxide emissions (1) from sources (2) may be processed in at least one processing reactor (4) containing a plurality of chemoautotrophic bacteria (5) which can convert the carbon dioxide emissions into biomass (6) which may then be used for various products (21) such as biofuels, fertilizer, feedstock, or the like. Bacteria that reduce oxidized nitrogenous species (13) may be used to supply reduced nitrogenous compounds to the chemoautotrophic bacteria (5).
Abstract:
A photobioreactor (100) for use in treating polluted air and producing biomass may comprise, at least in part, a generally vertical tube or fluidic pathway (102), a generally vertical helical tube or fluidic pathway (104) having a light source (106) partially positioned within the helical fluidic pathway (104), a head cap assembly (108), and a base assembly (110). In one illustrative example, the light source (106) may be a light emitting diode (LED) or a plurality of light emitting diodes (LEDs). By one approach, a gas diffusion apparatus (112) is located at the base assembly (110) adjacent the generally vertical fluidic pathway (102).
Abstract:
A formulation and process for capturing CO2 use an absorption mixture containing water, biocatalysts and a carbonate compound. The process includes contacting a CO2-containing gas with the absorption mixture to enable dissolution and transformation of CO2 into bicarbonate and hydrogen ions, thereby producing a CO2-depleted gas and an ion-rich solution, followed by subjecting the ion-rich solution to desorption. The biocatalyst improves absorption of the mixture comprising carbonate compounds and the carbonate compound promotes release of the bicarbonate ions from the ion-rich solution during desorption, producing a CO2 gas stream and an ion-depleted solution.
Abstract:
Methods and systems for removing volatile organic compounds from spent air are provided. The method can include oxidizing cumene in the presence of an oxidant to produce an oxidized product containing methanol and a spent air, separating the spent air from the oxidized product, contacting the spent air with an absorbent, an adsorbent, or a mixture thereof to remove at least a portion of any impurities in the spent air to produce a first purified air, and contacting the first purified air with a biological material to produce a treated air.
Abstract:
A plant air purifier and associated method for purifying air, comprising: at least one grow container; a filter bed comprising a surface which is horizontal within 20 degrees of a horizontal plane; at least one plant which grows within the filter bed; a reservoir for containing water for watering the at least one plant; a mechanical watering device which waters the filter bed from the top down; a pump for pumping water from the reservoir to and through the mechanical watering device; and an air propulsion mechanism for propelling air through the filter bed.