Wood and Bamboo Powder Fluidized Bed Gasification-Gas Turbine Power Generation Co-production Material Charcoal and Heat Method
A fluidized bed gasification and gas turbine technology, applied in gas turbine installations, granular/powder fuel gasification, biofuels, etc., can solve problems such as tar production and sewage pollution, and achieve good economic and environmental benefits.
Active Publication Date: 2020-03-24
NANJING FORESTRY UNIV
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[0005] What the present invention proposes is a kind of wood powder, bamboo powder fluidized bed gasification-gas turbine power generation co-production method for material charcoal and heat, the purpose of which is to effectively produce biomass charcoal, while the gasification process produces combustible gas The tar is cracked into combustible gas during the transportation process, and no external heating source is needed, so as to solve the problem of tar and sewage pollution in the prior art after biomass fluidized bed gasification combustible gas is purified for power generation
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[0028] The main equipment of the 1MW wood powder and bamboo powder fluidized bed gasification-gas turbine power generation co-produced carbon project is as follows: gasification reactor, subdivision separator, cracker, heat exchanger 1, heat exchanger 2, dust collector, Fans, gas turbines, waste heat boilers, etc. Operation process: wood powder and bamboo powder are sent to the fluidized bed gasification reactor to produce a mixture of combustible gas and biomass charcoal at 600-700°C (calorific value is about 1200kcal) under the condition of 700-850°C oxygen limit, The mixed gas first passes through the subdivision separator to separate the biomass charcoal, and then enters the cracker (the burner in the cracker is first lit, and the heat storage body of the cracker is heated by combustible gas combustion, and the remaining combustible gas does not enter the pyrolyzer at this time. The cracker is directly emptied. When the temperature of the heat storage body of the cracker r...
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What the present invention proposes is a kind of method that uses wood powder, bamboo powder fluidized bed gasification-gas turbine to co-generate material charcoal and heat, comprising the following steps: 1) sending wood powder and bamboo powder into the gasification reactor for gasification 2) The mixed gas passes through the fine powder separator to separate the biomass charcoal; 3) The combustible gas enters the cracker to crack the tar in the combustible gas; 4) After the tar cracking The combustible gas enters the secondary heat exchanger to preheat the air, which is used for the air intake at the bottom of the gasifier and the combustion of the cracker; 5) The combustible gas is dedusted by the dust collector, exhausted by the fan, and finally sent to the gas turbine for power generation. The gas is sent to the waste heat boiler to generate steam for heating. Advantages: 1) Autothermal cracking device is used to remove tar in combustible gas; 2) Heat exchange is used to preheat air, and the thermal efficiency of power generation is high; 3) No tar, no waste water, good environmental and economic benefits.
Description
technical field [0001] The invention relates to a wood and bamboo powder fluidized bed gasification-gas turbine power generation co-production method for material charcoal and heat, which belongs to the technical field of biomass energy. Background technique [0002] Under the dual pressure of energy and the environment, vigorously developing clean and renewable energy has become a very urgent worldwide issue before governments all over the world. Compared with other new energy sources, biomass energy has the characteristics of being renewable, less polluting, transportable and storing, and most compatible with the current energy industry, so it has attracted special attention. China is a large agricultural country with rich agricultural and forestry biomass resources, huge quantity and diverse varieties. Under the background of favorable policies, the utilization of biomass resources has achieved considerable development in China, but at the same time, many problems in tec...
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IPC IPC(8): C10J3/56C10J3/84C10J3/72F02C6/00F02C6/18
CPCC10J3/56C10J3/72C10J3/84C10J2300/1603C10J2300/1606C10J2300/1675F02C6/00F02C6/18Y02E50/10Y02P20/10Y02P20/129
Inventor 陈登宇章一蒙王恋
Owner NANJING FORESTRY UNIV