A calcium-based biomass chemical chain pyrolysis system
A biomass and chemical chain technology, applied in the field of calcium-based biomass chemical chain pyrolysis system, can solve the problem of low quality and grade, and achieve the effect of solving the effective supply of heat and realizing high-quality utilization
Active Publication Date: 2021-05-25
JIANGSU UNIV
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Problems solved by technology
Especially in the scale-up process of pyrolysis technology, the effective supply of heat has become an important bottleneck restricting its application
[0004] In addition, although the energy density of bio-oil products obtained by rapid pyrolysis of biomass has been greatly improved compared with biomass, its quality is still low
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[0022] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0023] A kind of calcium-based biomass chemical chain pyrolysis system proposed by the present invention is as follows: figure 1 As shown, it includes cyclone pyrolysis subsystem, cyclone combustion subsystem, bio-oil condensation system and flue gas heat exchange system; cyclone pyrolysis subsystem includes biomass material bin 1, calcium oxide bin 2 and cyclone pyrolysis furnace 3; cyclone pyrolysis furnace The combustion subsystem includes a cyclone combustion furnace 5 ; the bio-oil condensing system includes a bio-oil condensing device 4 ; the flue gas heat exchange system includes a first hea...
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Abstract
The invention discloses a calcium-based biomass chemical chain pyrolysis system, which includes a cyclone pyrolysis subsystem, a cyclone combustion subsystem, a bio-oil condensation system and a flue gas heat exchange system; During the pyrolysis process, the heat released by the carbonation reaction is used to provide heat in situ for the pyrolysis process, so as to realize the self-sustained progress of the biomass pyrolysis process and solve the heat supply problem of the pyrolysis process; at the same time, the bio-oil can be improved through the pyrolysis gas cycle. In addition, calcium oxide can absorb carbon dioxide and carbon dioxide-like substances produced in the pyrolysis process in situ, promote the deoxidation of bio-oil in the form of carbon dioxide, and improve the quality of bio-oil.
Description
technical field [0001] The invention belongs to the technical field of biomass energy, in particular to a calcium-based biomass chemical chain pyrolysis system. Background technique [0002] Biomass is the only renewable carbon source in nature and the only renewable energy source that can be converted into gaseous, solid and liquid hydrocarbon fuels. However, the irregular shape of actual biomass, low bulk density, and low energy density greatly limit its use. Converting biomass into bio-oil through rapid pyrolysis liquefaction technology can greatly increase its energy density and facilitate further concentration Large-scale utilization or quality improvement. [0003] Rapid pyrolysis of biomass is conducive to obtaining higher yields of bio-oil, which requires a fast heating rate of biomass particles. Using fine-grained biomass for pyrolysis can achieve a faster heating rate. Further, due to pyrolysis The process is endothermic, how to realize the effective and rapid su...
Claims
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IPC IPC(8): C10B53/02C10B57/00C11B3/02F23J15/06F23L15/00
CPCC10B53/02C10B57/00C11B3/02F23J15/06F23L15/00Y02E20/34Y02E50/10Y02P20/129
Inventor 李斌赵立军刘东京
Owner JIANGSU UNIV