Multielement multiple coal gas generation system

Abstract

The invention discloses a multielement multiple coal gas generation system comprising a combustor, a desulphurization kettle, a reducing furnace, a preheater, a gas scrubbing tower, a releasing tower and an electrical tar precipitator; Fire coal, household refuse and the like are combusted in the combustor; the generated gas flow enters the desulphurization kettle for desulphurization; the desulphurized gas flow enters the reducing furnace for reduction; the reduced gas flow is directly supplied to users; gas generated by the users are subjected to carbon dioxide recovery and treatment through the preheater, the gas scrubbing tower, and the releasing tower; tbe electrical tar precipitator can collect tar in the combustor. The system of the invention can realize combustion of various kinds of coal and any inflammable wastes for coal gas generation, and can realize combustion desulphurization of high-sulfur coal, thereby greatly reducing the desulphurization cost. The combustion gas generation cost is decreased for users; the production recycle and sale of lime, gypsum and tar is realized, thereby creating income for users. The system is wide in application scope, and can provide water gas, semi-water gas, gas with a high heating value, and lean gas for users to select.

Description

technical field [0001] The invention relates to the technical field of gas production from combustibles, in particular to a multi-component compound gas generation system. Background technique [0002] At present, most of the devices used to produce gas from combustibles use single-stage or double-stage gasifiers. The single-stage and double-stage gasifiers have the following disadvantages: 1) They have no environmental protection and desulfurization functions; Granularity requirements are strict, and it is impossible to produce gas from crushed coal; 3) Dust and tar in the gas must be treated separately; 4) Other combustible wastes cannot be processed, and gas production is carried out through combustion; 5) Waste heat and carbon dioxide gas reduction cannot be recovered gas. SUMMARY OF THE INVENTION [0003] The object of the present invention is to provide a multi-element compound gas generation system in order to solve the above-mentioned problems in the prior art. ...

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Problems solved by technology

[0002] At present, most of the devices used to produce gas from combustibles use single-stage or double-stage gasifiers. The single-stage and double-stage gasifiers have the following disadvantages: 1) They have no environmental protection and desulfurization functions; Granularity requirements are strict, and it is impossible to produce gas from crushed coal; 3) Dust and tar in the gas must be treated separately; 4) Other combustible wastes cannot be treated and burned to produce gas; 5) Waste heat and carbon dioxide gas reduction cannot be recovered gas

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