Middle-low-temperature flue gas desulfurization, dedusting and denitration and denitration catalyst thermal-desorption integrated device
A denitrification catalyst, desulfurization and dust removal technology, applied in the direction of catalyst regeneration/reactivation, physical/chemical process catalyst, combined device, etc., can solve the problems that it is impossible to install bag filter and denitration reactor at the same time, affecting the efficiency of medium and low temperature denitrification, etc. Achieve the effects of improving catalytic efficiency and service life, reducing operating costs, and improving denitrification efficiency
Active Publication Date: 2015-01-07
ACRE COKING & REFRACTORY ENG CONSULTING CORP DALIAN MCC
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The invention relates to a middle-low-temperature flue gas desulfurization, dedusting and denitration and denitration catalyst thermal-desorption integrated device. The integrated device comprises a desulfurization, dust-collection and purification section, an desorption, ammonia-spraying and mixing section and a denitration reaction section which are integrated in a tower body from bottom to top, wherein the desulfurization, dust-collection and purification section comprises an ash bin, a closed dust discharging valve, a flue gas inlet, an airflow uniform-distribution and flow-guiding plate, filter bags and a pulse-jet device; the desorption, ammonia-spraying and mixing section comprises an ammonia-spraying structural body, a thermal desorption gas conveying-jetting structural body and mixed flow-equalizing structural bodies; the denitration reaction section comprises a denitration catalyst and a purified flue gas outlet. Compared with the prior art, the integrated device has the beneficial effects that (1) the processes of desulfurization, dedusting and denitration of flue gas as well as the thermal desorption of the denitration catalyst are integrated; (2) the service life of the denitration catalyst is long; (3) the denitration efficiency is high; (4) ammonia gas and flue gas as well as high-temperature thermal desorption gas and flue gas are in full contact with each other; (5) the denitration catalyst can be regenerated through online thermal desorption; (6) a denitration catalyst dust-cleaning system can be omitted.
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