High-voltage narrow-pulse discharge and semi-dry process type cooperative pollutant control method and high-voltage narrow-pulse discharge and semi-dry process type cooperative pollutant control device

Abstract

The invention discloses a high-voltage narrow-pulse discharge and semi-dry process type cooperative pollutant control method and a high-voltage narrow-pulse discharge and semi-dry process type cooperative pollutant control device. The method comprises the following steps: (1) conveying dedusted flue gas to a high-voltage narrow-pulse discharge reactor through a flue gas inlet, and monitoring the concentrations of sulfur dioxide and nitric oxide at the flue gas inlet; (2) setting an energy input value of the high-voltage narrow-pulse discharge reactor according to the concentrations of the sulfur dioxide and the nitric oxide, and oxidizing and degrading the dedusted flue gas in the high-voltage narrow-pulse discharge reactor; (3) conveying the oxidized and degraded flue gas into a semi-dry process desulfurization system, absorbing or adsorbing the flue gas by quick lime or slaked lime, and removing original pollutants and newly-generated pollutants. Through the method and the device, a plurality of pollutants can be cooperatively removed. The method and the device have the advantages of high removal efficiency, flexibility in regulation, simple system, small occupied space and low investment.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method and device for coordinated control of pollutants by high-voltage narrow pulse discharge combined with semi-dry method. Background technique [0002] The waste gas produced when using fossil energy is the largest source of pollutants, but the current pollutant control technology has single function, high cost, large area and unsatisfactory removal efficiency. At present, the emission of particulate matter, sulfur dioxide, nitrogen oxides, and mercury has been formulated and included in relevant standards, and the emission control of hydrogen fluoride, hydrogen chloride, and organic pollutants still needs further technical progress. [0003] It has been found through research that high-voltage narrow-pulse discharge can generate a large number of high-energy electrons, low-temperature plasma, free radicals and a small amount of ozone. These active componen...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the deficiencies in the prior art, the present invention discloses a method and device for collaborative control of pollutants by combining high-voltage narrow pulse discharge with semi-dry method. The method combines high-voltage narrow pulse discharge with semi-dry method, which not only solves the problem The pollutant control equipment has the defects of single function, high cost, large floor area and unsatisfactory removal efficiency. At the same time, it can also save energy and material consumption. It is especially suitable for the efficient joint removal of multiple pollutants in the flue gas after dust removal

Images