Low tar biomass gasification power generation system

A technology of power generation system and low tar, which is applied in fuel oil system, gasification process, gaseous engine fuel, etc., can solve the problems of small gasification scale, difficulty in enlarging the system scale, poor stability of gas quality, etc., and improve the energy conversion rate. , the effect of saving fuel consumption
CN105542858AInactive Publication Date: 2016-05-04UNIV OF SHANGHAI FOR SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF SHANGHAI FOR SCI & TECH
Publication Date
2016-05-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The present invention relates to a low tar biomass gasification power generation system, the system is additionally provided with a combustion section, and brings greater convenience to a gasification system furnace-starting process, a furnace of the gasification system is warmed directly by combustion heat of a small size fluidized bed system, the fuel oil consumption of the furnace-starting can be greatly saved, heat produced by fluidized bed combustion can be recovered by a steam water system, a small steam turbine is sued for power generation to achieve the conversion recovery of chemical energy in carbon residue, high-temperature gasification gas discharged out of the gasification furnace and high-temperature exhaust gas after power generation of an internal combustion engine both can be recovered by a heat exchanger, an organic Rankine cycle system is used for realization of recovery of flue gas and process waste heat, and the energy conversion efficiency of the gasification system is significantly improved.
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Description

technical field

[0001] The invention relates to a power generation system, in particular to a low-tar biomass gasification power generation system. Background technique

[0002] Gasification is a common biomass energy conversion method, which has the characteristics of cleanness, high efficiency, strong fuel adaptability and flexible operation, and has broad application prospects. Among various biomass gasification technologies, the downdraft gasifier has the lowest tar content in the gas produced, about 0.5g / Nm 3 ; while the suction type is the most, up to 50g / Nm 3 ; the fluidized bed gasifier is moderate, about 8g / Nm 3 . Among the three gasification technologies, fluidized bed gasification is suitable for large-scale applications, and updraft gasification has the highest energy conversion efficiency, while the existing downdraft gasification technology has the lowest tar content in gas production, but There are still problems such as poor stability of gas production qu...

Claims

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