WET COLD ASH HIGH EFFICIENCY THERMAL ENERGY RECOVERY GASIFICATION SYSTEM AND PROCESS

Title:

WET COLD ASH HIGH EFFICIENCY THERMAL ENERGY RECOVERY GASIFICATION SYSTEM AND PROCESS

Document Type and Number:

WIPO Patent Application WO/2020/037904

Kind Code:

A1

Abstract:

Provided in the present application is a wet cold ash high efficiency thermal energy recovery gasification system, comprising a gasification furnace, a spray apparatus being arranged on a heat exchange surface in a radiation heat exchange chamber of the gasification furnace to form a low temperature area close to the heat exchange surface and a core high temperature area positioned on the side of the low temperature area furthest from the heat exchange surface; a gas-solid separation and wet cold ash apparatus arranged to be in communication with a syngas outlet of the gasification furnace; a convection heat exchange apparatus, used for recovering the sensible heat of the syngas and producing power steam; a gas scrubbing device, comprising a Venturi scrubber and a scrubbing tower arranged in series; and a black water treatment system, comprising a first-stage flash evaporation apparatus and a second-stage flash evaporation apparatus arranged in series. Also provided in the present application is a high efficiency thermal energy recovery gasification process. The solution of the present application uses a radiant heat exchange chamber with side zone temperature control technology, ensuring the safety of the heat exchange tube and greater heat recovery efficiency at a high radiation intensity; the saturated steam yield is high and the equipment volume is smaller.

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Inventors:

ZHAO JINGYI (CN)
HUANG PING (CN)
MAO WEI (CN)
ZHANG YAN (CN)

Application Number:

PCT/CN2018/122282

Publication Date:

February 27, 2020

Filing Date:

December 20, 2018

Export Citation:

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Assignee:

BEIJING AEROSPACE MWAY TECH CO LTD (CN)

International Classes:

C10J3/00; C10J3/72; C10J3/84; C10J3/86; C10K1/02; C10K1/10

Foreign References:

CN108913208A	2018-11-30
CN108795500A	2018-11-13
CN108165311A	2018-06-15
CN108342227A	2018-07-31
CN103436298A	2013-12-11
CN101298569A	2008-11-05
CN103695041A	2014-04-02
US4929254A	1990-05-29

Attorney, Agent or Firm:

BEIJING INNOTECH INTELLECTUAL PROPERTY AGENCY (CN)

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