Preparation method of denitration catalyst

Abstract

The invention discloses a preparation method of a denitration catalyst, belonging to the field of denitration catalysts. According to the preparation method, coal gangue is added as matrix, and talcumpowder and magnesite are added for assisting, so that the mechanical strength of a carrier is improved, the thermal expansion coefficient is reduced, and a carrier material with high mechanical strength, low expansion coefficient and low pressure drop is accordingly formed; the pretreated catalyst is supported on a prepared active carrier and is protected, so that in a catalytic process, a largerplace is provided for a catalytic reaction, and the utilization rate of the active components is increased; the catalyst has very strong mechanical properties and wear resistance, thus having good performance against fly ash deposition; the catalyst has a better catalytic activity in a smoke exhaust temperature range; furthermore, after being supported in the pores of the prepared carrier, the catalyst can prevent SO2 and water vapor poisoning, and the effective service life of the catalyst is prolonged. The denitration catalyst provided by the invention solves the problems that in a catalytic process of the existing denitration catalyst, solid particles cause erosive wear and blockage on the catalyst.

Description

technical field [0001] The invention belongs to the field of denitration catalysts, in particular to a preparation method of a denitration catalyst. Background technique [0002] With the rapid economic growth, huge resources and environmental costs have been paid, the contradiction between economic development and resources and environment has become increasingly acute, and the masses react strongly to environmental pollution. This situation is directly related to the unreasonable economic structure and the extensive growth mode. Without speeding up the adjustment of the economic structure and the transformation of the growth mode, resources will not be able to support it, the environment will not be able to accommodate it, society will not be able to bear it, and economic development will be unsustainable. Today's heavy polluting enterprises, including ceramics and chemical industries, urgently need to upgrade environmental protection equipment to ensure that the living e...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a preparation method of a denitrification catalyst in view of the problem that solid particles will wash away, wear and block the catalyst in the catalytic process of the current denitrification catalyst