Method and device for treating gas purification of gasification device of fixed bed(moving bed)
A gasification device and gas purification technology, which is applied in the field of gas purification of fixed-bed gasification devices, can solve the problems of system ash removal system blockage, excessive content, large investment, etc., reduce difficulty and investment, and prevent excessive phenol content , to avoid the effect of stable operation
Inactive Publication Date: 2015-04-29
TSINGHUA UNIV
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Problems solved by technology
The existence of tar will block the ash removal system of the system, and affect the stable operation of production in severe cases. Due to the phenol contained in the gas, the phenol content in the sewage of the device will exceed the standard, and the difficulty of sewage treatment will increase and the investment will be large.
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[0015] Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0016] A device 10 for treating gas purification of a fixed bed (moving bed) gasification device according to an embodiment of the present invention will be described below with reference to the accompanying drawings. Such as figure 1 As shown, the device 10 for gas purification of a fixed bed (moving bed) gasification device according to an embodiment of the present invention includes an oxidation reactor 101, a mixing nozzle 102, a fly ash water catcher, a waste heat recovery device 104, a washing tower 105 and an ash Water treatment unit.
[0017] The oxidation reactor 101 is provided with a first gas outlet, a first water inlet and a first water outlet, the...
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The invention discloses a method and a device for treating gas purification of a gasification device of a fixed bed (moving bed). The method comprises the following steps: oxidizing the gas generated by a gasifier through an oxidation reactor to generate high-temperature gas; catching a solid particle in the high-temperature gas through a fly-ash water-area catcher; recycling the heat from the high-temperature gas through a waste heat recovery device and generating saturated vapor; washing the saturated vapor through a washing tower, wherein the water of the fly-ash water-area catcher is supplied by the washing tower; treating the ash water drained from the oxidation reactor and the black water drained from the washing tower and the waste heat recovery device through an ash-water treating unit. The method for treating gas purification of the gasification device of the fixed bed(moving bed) can effectively remove tar, phenol and the like in the gas generated in the coal gasification technology of the fixed bed and the moving bed effectively, and can also prevent the content of phenol in the sewage from exceeding the standard.
Description
technical field [0001] The invention relates to a method for processing gas purification of a fixed bed (moving bed) gasification device, and also relates to a device for processing gas purification of a fixed bed (moving bed) gasification device. Background technique [0002] At present, the fixed bed or moving bed coal gasification technology adopted in the field of coal chemical industry at home and abroad, due to technical characteristics, the gas at the outlet of the gasification device contains a certain amount of tar, phenol and other substances. The existence of tar will block the ash removal system of the system, and affect the stable operation of production in severe cases. Due to the phenol contained in the gas, the phenol content in the sewage of the device will exceed the standard, and the difficulty of sewage treatment will increase and the investment will be large. Contents of the invention [0003] The present invention aims to solve one of the technical pr...
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IPC IPC(8): C10J3/84C10K1/00C10K1/02C10K1/10C02F9/10
CPCC02F1/06C02F9/00C02F2103/18C10J3/84C10K1/002C10K1/02C10K1/101Y02P20/10Y02P20/129
Inventor 郑常昊张建胜刘青
Owner TSINGHUA UNIV