Abstract:
The disclosure relates to the field of reduction of CO2 emission, more in particular to CO2 capture and conversion. The disclosure further relates to the culturing of algae and an apparatus for use thereof. One object of the disclosure is to provide an alternative method for capturing and conversion of CO2 from a gaseous stream.
Abstract:
Provided herein are sorbents for carbon dioxide (CO2) capture, such as from natural gas and coal-fired power plant flue gases, and uses thereof.
Abstract:
A method for CO2 capture may include operating a packed reactor comprising a reaction chamber containing packing including immobilized enzymes, by contacting a CO2 containing gas with a liquid solution in the reaction chamber to produce an ion-loaded solution and a CO2 depleted gas by an enzymatically catalyzed hydration reaction; monitoring enzyme activity of the immobilized enzymes; at a low enzyme activity threshold (i) stopping operation in the packed reactor, and (ii) replenishing the enzymatic activity by providing an enzyme replenishing solution into the packed reactor to contact the packing and provide a replenishing amount of the immobilized enzymes; and recommencing operation in the packed reactor for CO2 capture using the replenished immobilized enzymes. A corresponding system may include a packed reactor and an in situ enzyme supply device for supplying active enzyme within the reactor. The enzyme supply device may include spray nozzles with various configurations.
Abstract:
Enhancing growth of algae in an algaculture facility includes contacting a growth medium with a gas including carbon dioxide, transferring some of the carbon dioxide to the growth medium to yield an enriched growth medium, and providing the enriched growth medium to the algaculture facility. The concentration of dissolved carbon dioxide in the enriched growth medium exceeds the concentration of dissolved carbon dioxide in the growth medium, where dissolved carbon dioxide includes ions formed by the reaction of carbon dioxide with a species in solution. The growth medium may be obtained from the algaculture facility, and may be filtered or otherwise processed before or after contacting the growth medium with the gas. Providing the enriched growth medium to the algaculture facility increases the concentration of dissolved carbon dioxide in the bulk growth medium of the algaculture facility.
Abstract:
The present invention generally relates to improvements in enzyme immobilization, particularly for use in the field of carbon dioxide capture and sequestering. It has been discovered that the utilization of sol-gel processes to immobilize enzymes in polysilicate-polysilicone copolymer coatings and particles, and the deposition of these coatings on solid state supports or use of suspensions of these particles, provides significant benefits for use in industrial applications involving enzymatic catalysts.
Abstract:
Methods and systems are described for the purification of contaminated air containing CO2, converting it into O2 by means of the use of microorganisms. Said methods and systems comprise the initial stages of capturing the air proceeding from a source of contaminated air containing CO2, such as an industrial plant, and subsequent physical catalysis of said contaminated air, passing it across plates which partially fix the CO2 in the form of calcium and/or magnesium carbonates. Subsequent to these stages the air is passed through fermenter tanks containing a culture comprising micoorganisms, and the culture is then passed through a tubing circuit wherein it is irradiated with light radiation of particular frequencies, intensities and durations, achieving maximised production of O2. By means of the systems and methods described the conversion of CO2 into O2 is achieved having an efficiency very superior to those known in the prior art.
Abstract:
The present invention relates to a domestic plant factory able to achieve the aims of reducing hydroponic culture costs and improving air quality, wherein a culture solution is supplied to plants through salt ions generated while removing atmospheric NOX, SOX, PM10, HOCL and the like using an effective microbe fermented solution and a porous filtering medium. The domestic plant factory includes: a casing having a space therein and provided at an upper side thereof with a placement hole; a cultivation cup fixedly placed in the placement hole and provided on a wall thereof with a plurality of through-holes; a rooting member including a vegetation filtering medium charged in the casing or the cultivation cup; and an air supply unit supplying air to water charged in the space of the casing.
Abstract:
There is provided a process of operating a plurality of photobioreactors, comprising: while a carbon dioxide-comprising gaseous exhaust material producing process is effecting production of the carbon dioxide-comprising gaseous exhaust material, supplying at least a fraction of the produced carbon dioxide-comprising gaseous exhaust material to a respective reaction zone of each one of the phototobioreactors, in succession, wherein the at least a fraction of the produced carbon dioxide-comprising gaseous exhaust material being supplied defines a carbon dioxide-comprising gaseous exhaust supply.
Abstract:
Techniques related to enhancement of CO2 absorption use selection of an enzyme coordinated with selection of an absorption solution having a pKa to enhance or maximize the CO2 capture rate. The techniques may use various relationships between process variables such as temperature, concentration, and so on, in order to provide efficient CO2 capture.
Abstract:
The present invention relates to use of heat-stable carbonic anhydrase in CO2 extraction, e.g., from flue gas, natural gas or biogas. Furthermore, the invention relates to isolated polypeptides having carbonic anhydrase activity at elevated temperatures and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides.