The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 30, 2013
Filed:
Jun. 01, 2011
Haiqing Zhang, Wuhan, CN;
Feng Zhao, Wuhan, CN;
Liping Cheng, Wuhan, CN;
Zhenhua Yao, Wuhan, CN;
Abstract
The invention is relates to a method and a system for producing synthetic gas from biomass by high temperature gasification, including: feeding raw material, carbonizing, pulverizing the charcoal, and transporting charcoal powder to the gasification furnace for gasification. A heat source for the carbonizing is achieved by a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. The heat emitted from the reaction being directly provided to the necessary heat of biomass pyrolysis, and yielding pyrolysis gas and charcoal from carbonization furnace. The temperature of carbonization furnace is controlled at between 400° C. and 600° C. by adjusting the amount of oxygen. The temperature of a burner nozzle of the carbonization furnace is controlled at between 1200° C. and 1800° C. by adjusting the input amount of the external combustible gas at between more than 1 and less than 5 times that required for a complete combustion with the external oxygen. Pulverizing the charcoal includes charcoal cooling, decompression, pulverizing, supercharging, fluidizing, and transported to the gasifier by controlling the amount of pyrolysis gas.