Wuhan Kaidi Engineering Technology Research Institute Co., Ltd.

Haiqing Zhang

Qin Sun

Hong Li

Feng Zhao

Shirong Zhang

Kan Song

Jinqiao Zhang

Peng Qiu

Manyi Jiang

Zhenhua Yao

Minxia Cao

Shenghua Zheng

Liping Cheng

Zhanchun Yang

Anhe Chen

A gasification system for producing synthetic gas from biomass, including: a biomass material pre-processing part; a pyrolysis part; a condensing part; and a gasification part. The pyrolysis part includes a pyrolysis bed and a combustion bed. The condensate tank of the condensing part is connected to a non-condensable pyrolysis gas compressor via a pipeline; an output of the non-condensable pyrolysis gas compressor is connected to the pyrolysis bed and the combustion bed. The non-condensable pyrolysis gas acts as a fuel of the combustion bed and a fluidizing medium of the pyrolysis bed.

System for producing synthesis gas from biomass

A method for producing synthesis gas, including: 1) pre-processing a biomass raw material; 2) pyrolyzing the biomass raw material to yield a pyrolysis gas and a carbon powder; 3) separating the pyrolysis gas from the carbon powder and a solid heat carrier; 4) separating the carbon powder away from the solid heat carrier via a solid-solid separator; 5) conveying the generated pyrolysis gas to a condensate tank for spray condensation, condensing a condensable part in the pyrolysis gas to generate biological fuel oil, pressurizing the generated biological fuel oil by a high pressure oil pump and feeding to a gasification furnace to be gasified; and 6) feeding one part of non-condensable pyrolysis gas to a combustion bed to combust with air, and conveying the other part of the non-condensable pyrolysis gas to the pyrolysis bed as a fluidizing medium.

Method and system for producing synthesis gas

A method for producing synthesis gas, including: 1) pre-treating a biomass raw material; 2) carrying out low-temperature carbonization to obtain pyrolysis gas and charcoal, cooling the charcoal at an outlet of an carbonization furnace, and conveying the cooled charcoal to a charcoal storage bin; 3) separating the pyrolysis gas from charcoal powder; 4) delivering part of a separated pyrolysis gas to a combustion bed for combustion, heating the other part of the separated pyrolysis gas, and delivering a heated pyrolysis gas to the carbonization furnace; delivering a waste hot flue gas after heat exchange to a pretreatment part for the biomass raw material for drying; conveying the separated charcoal powder to the charcoal storage bin; 5) milling the charcoal powder to prepare a charcoal slurry; and 6) using high-pressure charcoal slurry pump, introducing the charcoal slurry to a gasification furnace for gasification.

The invention 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. Prior to pulverizing, the charcoal is reduced to a normal pressure by a decompression feeding system of charcoal, pulverized into powders, and transported to a supercharging feeding system of charcoal powder by normal pressure transport gas. The pressurized charcoal powder is transported to gasifier. The high-temperature charcoal at an outlet of carbonization furnace is cooled to 60-200&#xb0; C. by a cooler, and transported into the decompression feeding system to be depressurized. The charcoal powder with pressurized is ejected to gasifier by an ejector, pyrolysis gas produced from carbonization furnace is used as carrier gas, and the ratio of solid to gas in the transportation pipe for charcoal powder is controlled at between 0.03 and 0.45 m/mby adjusting the amount of pyrolysis gas for transportation. The temperature of the carbonization furnace is controlled at between 400&#xb0; C. and 600&#xb0; C. by adjusting the amount of oxygen.

Method and system for producing synthetic gas from biomass by high temperature gasification

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&#xb0; C. and 600&#xb0; C. by adjusting the amount of oxygen. The temperature of a burner nozzle of the carbonization furnace is controlled at between 1200&#xb0; C. and 1800&#xb0; 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.

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.

A method for producing synthetic gas from biomass by high temperature gasification, by: feeding biomass, carbonizing to yield pyrolysis gas and charcoal, pulverizing the charcoal, and gasifying in a gasifier. The heat source for the carbonizing step comes from a direct combustion reaction between external combustible gas and external oxygen in a carbonization furnace. Also provided is a device for producing synthetic gas from biomass by high temperature gasification, containing at least: a supercharging feeding system for biomass, a carbonization furnace containing at least a burner nozzle, a pulverizing system, a transportation system for charcoal powder, a gasifier, a pneumatic conveying system, and a plurality of connecting pipes therefor; the burner nozzle of the carbonization furnace is connected to an external combustible gas pipe and an external oxygen pipe respectively.

Growing community of inventors

Wuhan, China

Haiqing Zhang