HIGH TEMPERATURE GASIFYING PROCESS WITH BIOMASS AND SYSTEM THEREOF

Title:

HIGH TEMPERATURE GASIFYING PROCESS WITH BIOMASS AND SYSTEM THEREOF

Document Type and Number:

WIPO Patent Application WO/2010/063207

Kind Code:

A1

Abstract:

High temperature gasifying process with biomass includes feeding, carbonization, powder making of charcoal, transportation of powdery charcoal and gasifying in gasifier, wherein carbonization is carried out in the carbonization furnace for pyrolysis of biomass with the heat released by direct combustion of additionally provided combustible gas and oxygen, the product of carbonization is pyrolysis gas and charcoal. The temperature in the carbonization furnace is controlled at 400~600℃through adjusting the amount of oxygen, the molar number of added combustible gas is greater than 1 and less than 5 based on that the molar number of combustible gas is 1 when it is completely combusted with oxygen. The temperature of the flame at the nozzle of the carbonization furnace is controlled at 1800~1200℃ through adjusting the amount of additionally provided combustible gas entering into the carbonization furnace. Powdery charcoal is formed through reducing the temperature of charcoal, reducing pressure, powder making, increasing pressure and fluidization, and the powdery charcoal is sent to gasifier through adjusting the transportation amount of the pyrolysis gas and/or additionally provided combustible gas. The system for performing the process includes a filter, the filter is positioned at the outlet of the pyrolysis gas of the carbonization furnace, wherein the pipe of the reverse purging gas of the filter is in fluid communication with the pipe of additionally provided combustible gas.

Inventors:

ZHANG HAIQING (CN)
ZHAO FENG (CN)
CHENG LIPING (CN)
YAO ZHENHUA (CN)

Application Number:

PCT/CN2009/074719

Publication Date:

June 10, 2010

Filing Date:

October 30, 2009

Export Citation:

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Assignee:

WUHAN KAIDI TECHNOLOGY R & D I (CN)
ZHANG HAIQING (CN)
ZHAO FENG (CN)
CHENG LIPING (CN)
YAO ZHENHUA (CN)

International Classes:

C10J3/00; C10B53/02; B09B3/00

Domestic Patent References:

WO2000006671A1

2000-02-10

Foreign References:

CN1931959A	2007-03-21
US20080022595A1	2008-01-31
JP2006026474A	2006-02-02
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CN200510043836A	2005-06-16
US6863878B2	2005-03-08
CN200610124638A	2006-09-28

Other References: