575 results about "Decreased carbon dioxide" patented technology

An integrated power production system including a fossil fuel power plant for processing fossil based fuel such as coal or natural gas arranged in tandem with a carbonate fuel cell having an anode and a cathode section. The flue gas of the power plant serves exclusively as the inlet gas for the cathode section of the fuel cell. Anode exhaust gas leaving the anode section of the fuel cell is subjected to processing including sequestration of the carbon dioxide in the exhaust gas.

A CO2 recovering apparatus includes a CO2 absorber that brings flue gas containing CO2 and O2 into contact with CO2 absorbing liquid to reduce CO2 in the flue gas; and a regenerator that reduces CO2 in CO2 absorbing liquid (rich solvent) that absorbed CO2 in the CO2 absorber to regenerate the CO2 absorbing liquid, so that the regenerated CO2 absorbing liquid (lean solvent) having CO2 reduced in the regenerator is reused in the CO2 absorber. A lower liquid reservoir is located at the bottom of the CO2 absorber, and an air-bubble gathering member is arranged therein to gather air bubbles included in the absorbing liquid.

The invention discloses a method for producing biological diesel oil by two steps of culture of chlorellas, namely, autotrophy and heterotrophy, which belongs to the renewable biological energy field. Concentrated autotrophic algae is put into a fermentation tank to perform heterotrophic growth from the processes of autotrophic culture, cell concentration and fermentation pollution controlling of the chlorellas, to ensure the chlorellas to be synthesized into neutral fat. Effective feeding strategy is established to ensure the fat to be synthesized into optimal after the optimization of the fermentation conditions and the process control. The biomass can reach 108g.L-1, and the grease content can reach 52 percent of cell dry weight. After the culturing is finished, biological diesel oil can be prepared after extracting algal oil and transesterification reaction. The cell concentration technology adopted by the invention can effectively avoid the problem of light restriction during the high density culture process Not only is the carbon dioxide emission reduced, but also the organic carbon source consumption is reduced, thus the preparation cost of the biological diesel oil material is saved. The whole technical line is environmental friendly, high efficient, and can meet the industrial application requirements of the microalgae biological diesel oil.

The present invention describes methods and systems for extracting, capturing, reducing, storing, sequestering, or disposing of carbon dioxide (CO2), particularly from the air. The CO2 extraction methods and systems involve the use of chemical processes, mineral sequestration, and solid and liquid sorbents. Methods are also described for extracting and / or capturing CO2 via condensation on solid surfaces at low temperature.