Sulfur-fixing denitration coal-saving decoking coke inhibitor and preparation method thereof

A technology for denitrification and coal saving, applied in the field of coke removal and coking inhibitor, can solve the problems of narrowing of coal distribution channels, affecting gas flow, and increasing furnace outlet pressure, so as to reduce the residual carbon content of coal ash, reduce furnace temperature, and reduce The effect of cracking temperature

Inactive Publication Date: 2020-08-04
北京可林维尔化工有限公司
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

[0002] Gasifiers generally have problems such as coking in the furnace and high residual carbon in coal. The presence of coke on the furnace wall will affect the heating of the water jacket, so that the water jacket cannot reach the evaporation required in the design; when there is too much coking on the top of the furnace, it will Affect the operation of the stirring rod, and sometimes coking will also cause the narrowing of the coal distribution channel, and in severe cases, it will affect the coal loading; too much coking at the furnace outlet will affect the gas circulation, resulting in an increase in the pressure of the furnace outlet

Method used

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  • Sulfur-fixing denitration coal-saving decoking coke inhibitor and preparation method thereof

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preparation example Construction

[0032] The present invention also provides a method for preparing the sulfur-fixing, denitrification, coal-saving, coke-removing and coking-inhibiting agent, which comprises the following steps:

[0033] 1) mixing the auxiliary agent, polyethylene oxide, cobalt isooctanoate, zirconium isooctanoate, nickel isooctanoate and zinc isooctanoate to obtain the first mixture;

[0034] 2) mixing the first mixture, aluminum acetylacetonate and titanium dioxide to obtain the second mixture;

[0035] 3) Mix the second mixture with the surfactant to obtain the sulfur-fixing, denitrification, coal-removing, coke-removing and coking-inhibiting agent.

[0036] In the present invention, the mixing process of the auxiliary agent preferably first mixes 4-nitrophenol, phthalate, methyl alcohol, 2,6-di-tert-butyl-4-methylphenol and triethanolamine, and then Add polyethylene glycol monomethyl ether slowly, and the mixing time is preferably 20-40 minutes, more preferably 30 minutes.

[0037] In th...

Embodiment 1

[0051] After mixing 15 parts of 4-nitrophenol, 8 parts of phthalate, 2 parts of methanol, 0.3 part of 2,6-di-tert-butyl-4-methylphenol and 0.1 part of triethanolamine in a stirring tank , slowly add 18 parts of polyethylene glycol monomethyl ether and mix for 30 minutes, then add 2 parts of polyethylene oxide, 2 parts of cobalt isooctanoate, 1 part of zirconium isooctoate, 1 part of nickel isooctoate and 2 parts of zinc isooctanoate and stir the reaction 30 minutes, then add 2 parts of aluminum acetylacetonate and 2 parts of titanium dioxide and stir for 30 minutes, and finally add 20 parts of alkylphenol polyoxyethylene ether and 5 parts of fatty alcohol polyoxyethylene ether into the stirring tank and stir for 30 minutes to form a homogeneous liquid to obtain sulfur fixation Denitrification and coal decoking agent.

Embodiment 2

[0053] After mixing 18 parts of 4-nitrophenol, 10 parts of phthalates, 5 parts of methanol, 0.3 parts of 2,6-di-tert-butyl-4-methylphenol and 0.2 parts of triethanolamine in a stirring tank , slowly add 20 parts of polyethylene glycol monomethyl ether and mix for 30 minutes, then add 3 parts of polyethylene oxide, 2.5 parts of cobalt isooctanoate, 1 part of zirconium isooctanoate, 1 part of nickel isooctanoate, 3 parts of zinc isooctanoate and stir to react 30 minutes, then add 2.5 parts of aluminum acetylacetonate and 3 parts of titanium dioxide and stir for 30 minutes, and finally add 24 parts of alkylphenol polyoxyethylene ether and 6 parts of fatty alcohol polyoxyethylene ether into the stirring tank and stir for 30 minutes to form a homogeneous liquid to obtain sulfur fixation Denitrification and coal decoking agent.

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Abstract

The invention relates to the technical field of decoking coke inhibitors, in particular to a sulfur-fixing denitration coal-saving decoking coke inhibitor and a preparation method thereof. The sulfur-fixing denitration coal-saving decoking coke inhibitor comprises the following components in parts by mass: 25-45 parts of a surfactant, 43.4-65.5 parts of an auxiliary agent, 2-4 parts of polyethylene oxide, 2-3 parts of aluminum acetylacetonate, 2-4 parts of titanium dioxide, 2-3 parts of cobalt iso-octoate, 1-2 parts of zirconium iso-octoate, 1-2 parts of nickel iso-octoate and 2-4 parts of zinc iso-octoate. The invention can obviously lower the cracking temperature of coal, enhance the burn-off efficiency, lower the hearth temperature, enhance the gas production rate and lower the coal ashcarbon residue content in the flue gas and the carbon residue content in the slag, has a series of functions of coal saving, sulfur fixation, denitration, decoking, coke prevention and the like, andis mainly used in the reducing atmosphere of the gas producer.

Description

technical field [0001] The invention relates to the technical field of decoking and coke suppressing agents, in particular to a sulfur-fixing, denitrifying, coal-removing and coking suppressing agent and a preparation method thereof. Background technique [0002] Gasifiers generally have problems such as coking in the furnace and high residual carbon in coal. The coke on the furnace wall will affect the heating of the water jacket, so that the water jacket cannot reach the evaporation required in the design; when there is too much coking on the top of the furnace, it will It affects the operation of the stirring rod, and sometimes coking will also cause the narrowing of the coal distribution channel, and in severe cases, it will affect the coal loading; too much coking at the furnace outlet will affect the gas circulation and increase the pressure at the furnace outlet. Therefore, in order to improve desulfurization, denitrification efficiency, reduce pollution, and then mee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L9/10C10J3/00
CPCC10J3/00C10J2300/0983C10L9/10
Inventor 王方圆
Owner 北京可林维尔化工有限公司
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