US 9,809,771 B2
Carbonaceous substance gasification device and method
Congbin Jiang, Beijing (CN); Wei Xin, Beijing (CN); Honghai Li, Beijing (CN); Ruiheng Gao, Beijing (CN); Yongjin Chen, Beijing (CN); Xiaofei Li, Beijing (CN); Yan Zhang, Beijing (CN); and Li Zhang, Beijing (CN)
Assigned to ChangZheng Engineering Co., Ltd., Beijing (CN)
Appl. No. 15/38,801
Filed by ChangZheng Engineering Co., Ltd., Beijing (CN)
PCT Filed Nov. 21, 2014, PCT No. PCT/CN2014/091822
§ 371(c)(1), (2) Date May 24, 2016,
PCT Pub. No. WO2015/074589, PCT Pub. Date May 28, 2015.
Claims priority of application No. 2013 1 0606678 (CN), filed on Nov. 25, 2013.
Prior Publication US 2016/0355742 A1, Dec. 8, 2016
Int. Cl. C01B 3/02 (2006.01); C10J 3/86 (2006.01); C10J 3/50 (2006.01); C01B 3/50 (2006.01); C10J 3/48 (2006.01); C10J 3/84 (2006.01)
CPC C10J 3/86 (2013.01) [C01B 3/02 (2013.01); C01B 3/50 (2013.01); C10J 3/485 (2013.01); C10J 3/506 (2013.01); C10J 3/84 (2013.01); C01B 2203/04 (2013.01); C01B 2203/0877 (2013.01); C10J 2300/093 (2013.01); C10J 2300/0976 (2013.01); C10J 2300/1853 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for carbonaceous substance powder gasification in a vertical device, comprising the steps of:
i) reacting a carbonaceous substance in powder form in a vertical device with an oxygen-containing gasification agent at a temperature which generates a crude synthesis gas comprising CO, H2, and ash;
ii) allowing a first portion of said crude synthesis gas to descend with most of the ash wherein the heat of the crude synthesis gas prevents buildup of slag;
iii) removing the ash from said first portion of crude synthesis gas and cooling to form a first purified synthesis gas;
iv) removing said first purified synthesis gas and removing said ash from the bottom of said vertical device;
v) simultaneously allowing a second portion of said crude synthesis gas to ascend through said vertical device;
vi) mixing said second portion of crude synthesis gas with a cooling material to lower the temperature;
vii) submitting the cooled second crude synthesis gas portion to a second oxidation reaction by mixing with an oxygen-containing gasification agent at a lower temperature than step i) to form a reoxidized synthesis gas;
viii) cooling said reoxidized synthesis gas and removing the ash to form a second purified synthesis gas; and
ix) removing said second purified synthesis gas from the top of said vertical device.