Method for achieving simultaneous desulfurization, denitration and mercury removal in injection mode

Abstract

The invention discloses a method for achieving simultaneous desulfurization, denitration and mercury removal in an injection mode, and relates to a method for desulfurization, denitration and mercury removal. The injection type mercury removing method of simultaneous desulfurization and denitration comprises a coal-fired flue gas generating unit, a water vapor generating unit, a plasma generating unit, a gas mixing unit and a detection unit. The coal-fired flue gas generating unit is provided with an O2 gas cylinder, a NO gas cylinder, a SO2 gas cylinder, a N2 gas cylinder, a HgO permeation tube and a constant temperature water bath kettle; the water vapor generating unit is composed of a constant temperature water bath kettle and a gas washing bottle; the plasma generating unit is provided with a power supply and a plasma reactor; the gas mixing unit is provided with a gas mixing chamber; the detection unit is provided with a flue gas analysis meter and a mercury vapor meter. According to the method for the method for achieving simultaneous desulfurization, denitration and mercury removal in an injection mode, a device for achieving simultaneous desulfurization, denitration and mercury removal in an injection mode is adopted. The device for achieving simultaneous desulfurization, denitration and mercury removal in an injection mode can conveniently, fast and stably generate active particles, an injection mode is adopted to introduce active particles in the glue gas system, and thus corrosion and losses on the plasma reactor due to a flue gas component can be avoided.

Description

technical field [0001] The invention relates to a desulfurization, denitrification and mercury removal method, in particular to an injection-type simultaneous desulfurization, denitrification and mercury removal method. Background technique [0002] The level of existing coal-fired power units in my country is backward, the coal consumption for power generation is high, and the flue gas produced by coal combustion contains soot and sulfur oxides (SO x ), nitrogen oxides (NO x ), carbon monoxide (CO), carbon dioxide (CO 2 ) and toxic heavy metal elements and other air pollutants, these substances will not only destroy the balance of the atmosphere and cause environmental pollution, but also cause harm to human health. [0003] SO 2 and NO x After being discharged into the atmosphere, it will form secondary pollutants with other substances in the environment under physical, chemical or biological factors, causing pollution such as acid rain and photochemical smog, causing ...

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Problems solved by technology

[0006] At present, due to factors such as technology or cost, dust removal, desulfurization, denitration and demercury removal in flue gas purification technologies at home and abroad are often completed in multiple independent systems. The existing integrated treatment technology is not effective due to technical and other reasons. very ideal

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