Fume produced hydrocarbon fuel synergic desulfurization method and photocatalysis device for achieving same

Abstract

The invention belongs to the technical field of fume purification and discloses a fume produced hydrocarbon fuel synergic desulfurization method and a photocatalysis device for achieving same. According to the method, photocatalytic reduction is implemented on CO2 in fume between an oxygen-enriched combustion power plant electrostatic dust collector and a fume condensation and CO2 compression device, and meanwhile SO2 in the fume is subjected to oxidation desorption. The device comprises a reaction unit and a separation unit, wherein the reaction unit comprises a reaction container; a stirringdevice, a bicarbonate solution and a photocatalyst suspended in the bicarbonate solution are arranged inside the reaction container; a fume inlet, a gas outlet, a liquid outlet and a liquid inlet arerespectively formed in the reaction container; a quartz glass cover plate is arranged at the top end of the reaction container; and the separation unit is a centrifugal extraction device. By virtue of solar energy, oxygen-enriched combustion fume conversion and fume desulfurization are achieved simultaneously, and in addition, the method ahs the advantages of being low in energy consumption, lowin cost, and the like, and has great significances for popularization and application of oxygen-enriched combustion techniques.

Description

technical field [0001] The invention belongs to the technical field of flue gas purification, and more specifically relates to a desulfurization method and a photocatalytic device for realizing the method. Background technique [0002] Coal is the cornerstone of my country's energy, and more than 60% of my country's energy consumption comes from coal. Coal-fired power plants are my country's CO 2 The largest and most concentrated source of emissions. Oxygen-enriched combustion technology uses pure oxygen mixed with circulating flue gas to replace air as a combustion aid to participate in combustion, and the CO in the generated flue gas 2 The concentration can reach more than 80% and realize the CO 2 capture. This technology has the advantages of being scalable and retrofitting existing units, but its large-scale promotion is limited due to the high cost. If the captured CO 2 It is bound to have important promotion significance for the popularization and application of ...

AI Technical Summary

Problems solved by technology

Although traditional flue gas treatment methods, such as wet desulfurization technology, can achieve efficient removal of SO2, there are still disadvantages such as high energy consumption and high cost

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