Small mobile rapid pyrolysis liquefaction apparatus for agricultural and forestal biomass
A mobile, biomass technology, used in biofuels, special forms of dry distillation, direct heating dry distillation, etc., can solve the problems of insufficiently compact structure, complex and cumbersome process, low heat transfer efficiency, etc., to improve the gas-solid separation efficiency, the overall The effect of compact structure and high heat transfer efficiency
Inactive Publication Date: 2019-01-01
BEIJING FORESTRY UNIVERSITY
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Problems solved by technology
[0006] To sum up, the existing mobile biomass rapid pyrolysis liquefaction equipment can not be well adapted to the mobile factory operation, the process is relatively complex and cumbersome, or only the process has no actual device development, and the pyrolysis side effects cannot be fully utilized. product, resulting in a waste of resources; the structure is not compact enough, the heat transfer efficiency is low, and various auxiliary equipment make the overall device bloated, which is inconvenient to transport
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[0041] Using larch pellets as raw materials, a small mobile agricultural and forestry biomass rapid pyrolysis liquefaction device with a processing capacity of 10kg / h is used for rapid pyrolysis production:
[0042] This device consists of a fluidized bed-spout dual pneumatic feeder 1, a double-pipe type double fluidized bed reactor 2, a combustion furnace 3, a cyclone separator 4, a carbon collection box 5, a gas cylinder 6, a water tank 7, and oil storage Tank 8, jet-spray compound condenser 9, oil pump 10, primary gas purifier 11, secondary gas purifier 12, combustion fan 13, circulating fan 14, gas buffer tank 15, including fluidized bed-jet The total height of the dynamic dual pneumatic feeder 1 is 1900mm, the inclination angle of the hopper 16 is 61°, the inner diameter of the buffer chamber 20 is 200 mm; the total height of the double-pipe type double fluidized bed reactor 2 is 1747mm, the inner tube 24 has an inner diameter of 180mm, and the outer tube 25 has an inner diam...
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Abstract
The invention relates to a small mobile rapid pyrolysis liquefaction apparatus for agricultural and forestal biomass, belonging to the technical field of biomass energy. The rapid pyrolysis liquefaction apparatus comprises a fluidized bed-spouted bed double pneumatic feeder, a bushing type double fluidized bed reactor, a combustion furnace, a cyclone separator, a charcoal collecting tank, a gas cylinder, a water tank, an oil storage tank, an injection-spraying composite condenser, a primary gas purifier, a secondary gas purifier, a gas buffer tank, etc. The apparatus of the invention is applicable to on-site rapid pyrolysis liquefaction conversion in areas with concentrated agricultural and forestal biomass, e.g., forest farms and villages; the apparatus is integrally designed on a trailerplatform, and is compact in the structure of all the components, free of superfluous moving parts, stable in operation and convenient for outdoor mobile operation; and a by-product, i.e., non-condensable gas, produced in pyrolysis of the apparatus is made full use of and is subjected to closed-circuit circulation, so self-supply of most energy is realized and the requirements for self-heating pyrolysis and environment friendliness are met.
Description
Technical field [0001] The invention relates to a small mobile type fast thermal pyrolysis liquefaction device for agricultural and forestry biomass, which belongs to the technical field of biomass energy. Background technique [0002] Biomass is the earliest energy source that mankind began to use. It has attracted much attention for its clean, pollution-free, and renewable characteristics. Rapid pyrolysis liquefaction technology is one of the important technologies for the thermochemical conversion and utilization of biomass energy. In an anaerobic or anoxic environment, agricultural and forestry biomass can be heated at a medium pyrolysis temperature (450-650℃) and a higher heating rate (10 4 -10 5 ℃ / s), shorter residence time ( <2s) Under fast conditions, it is transformed into three products: liquid (pyrolysis oil), solid (pyrolysis carbon) and gas (non-condensable gas). [0003] Because biomass raw materials have the characteristics of seasonality, dispersion, regionality ...
Claims
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IPC IPC(8): C10G1/00C10B49/10C10B53/02
CPCC10B49/10C10B53/02C10G1/00C10G2300/1014Y02E50/10
Inventor 司慧李萍常建民王娜娜白勇
Owner BEIJING FORESTRY UNIVERSITY
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