Synergistic-denitration type liquid boiler clinker removal agent and preparation method and application thereof

A decoking agent and boiler technology, which is used in fuel additives, petroleum industry, solid fuels, etc., can solve the problems of increasing the difficulty of denitrification, the cost of out-of-stock, increasing pollutant emissions, and increasing emissions, reducing initial emissions, The effect of reducing bond strength and promoting combustion
CN105670733AActive Publication Date: 2016-06-15山东默锐环境产业股份有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
山东默锐环境产业股份有限公司
Publication Date
2016-06-15

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Abstract

The invention discloses a synergistic-denitration type liquid boiler clinker removal agent and a preparation method and application thereof and belongs to the field of clean combustion of coal.The clinker removal agent is prepared from, by weight, 5-20% of magnesium acetate, 1-5% of copper nitrate, 1-5% of nickel nitrate, 2-10% of ammonium nitrate, 3-10% of boric acid, 0.5-2% of cerium nitrate and the balance water.The clinker removal agent is atomized and added into a boiler through jetting, magnesium acetate is decomposed to generate MgO and alkyl (CHi) at the high temperature, the fuel intermediate CHi has reduction action for NO, the content of NO in flue gas can be reduced, the synertistic effect is achieved for denitration, generated nanoscale MgO pores are high in specific surface area, the clinker removal agent can serve as a catalytic carrier of a denitration reaction and also can react with a low-melting-point compound in a clinker layer to raise the clinker melting point so that clinker can be loosened and be crispy, the clinker removal agent is small in consumption and can obviously reduce the boiler coking phenomenon, and meanwhile the good synergistic NO removal effect is achieved.
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Description

Technical field

[0001] The invention belongs to the field of coal clean combustion, and specifically relates to a synergistic denitration type liquid boiler decoking agent and its preparation method and application, which is used for directly atomizing and spraying into the furnace to suppress and remove coking in the furnace. Background technique

[0002] During the long-term operation of coal-fired boilers, due to large changes in coal quality, defects in the boiler design, local high temperatures, improper operation and other problems, the heating surface of the water-cooled wall is prone to coking and dust accumulation in the superheater and reheater pipes. , causing the heat exchange efficiency of the boiler to decrease, the exhaust gas temperature to increase, and coal resources to be wasted seriously. When coking and ash accumulation are severe, falling large coke blocks can easily cause boiler fire-fighting accidents, posing great safety risks. At this time, enterpri...

Claims

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