PROCESS FOR COOLING AND WASHING BIOMASS SYNGAS AND SYSTEM THEREOF - WUHAN KAIDI GENERAL RES INST ENG & TECH CO LTD

Title:

PROCESS FOR COOLING AND WASHING BIOMASS SYNGAS AND SYSTEM THEREOF

Document Type and Number:

WIPO Patent Application WO/2013/097536

Kind Code:

A1

Abstract:

Provided is a process for cooling and washing a biomass syngas and system thereof. The process is directed to a biomass syngas with a temperature of 1000-1100°C, a dust content of less than 20 g/Nm3 and a tar content of less than 3g/Nm3; the process comprises the following steps: 1) the syngas is sent to a chilling tower (2) to be chilled and to solidify slag; 2)after being chilled to solidify slag, the syngas is sent to a waste heat boiler to perform recycling of the waste heat and condense the heavy tar in the syngas; 3) the syngas passed through the waste heat boiler is sent to a washing and cooling tower (5) for dust extraction and cooling; 4) the syngas remaining after dust extraction and cooling in the washing and cooling tower (5) is sent to an electrostatic precipitator (6) to perform deep extraction of dust and tar removal. The system comprises a chilling tower (2) linked to a high-temperature pyrolysis biomass gasifier; the chilling tower (2)is linked to the waste heat boiler, the washing and cooling tower (5) and the electrostatic precipitator (6) via syngas pipelines in succession. The present process is fluent, simple in system structure, highly efficient in heat use, and syngas treatment gives good results.

Inventors:

ZHANG YANFENG (CN)
LIU WENYAN (CN)
XIA MINGGUI (CN)
ZHANG LIANG (CN)

Application Number:

PCT/CN2012/083597

Publication Date:

July 04, 2013

Filing Date:

October 26, 2012

Export Citation:

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Assignee:

WUHAN KAIDI GENERAL RES INST ENG & TECH CO LTD (CN)

International Classes:

C10K1/00; C10K1/02; C10K1/06; C10K1/10

Foreign References:

CN101709228A	2010-05-19
CN2680671Y	2005-02-23
CN201508115U	2010-06-16
CN102559289A	2012-07-11
CN202390403U	2012-08-22
CN202390400U	2012-08-22
CN202390399U	2012-08-22
CN1446880A	2003-10-08
CN1258712A	2000-07-05
CN202011860U	2011-10-19
GB2455869A	2009-06-24

Other References: