A low energy consumption biomass liquefaction device

A liquefaction device and biomass technology, applied in the field of low-energy biomass liquefaction devices, can solve the problems of high energy consumption, low proportion of biomass diesel output, slow heating rate, etc., achieve high thermal efficiency, improve comprehensive utilization efficiency, reduce The effect of smoke loss

Active Publication Date: 2020-09-29
SHANXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problems of high energy consumption and slow heating rate in the process of pyrolysis and liquefaction of biomass, which in turn lead to a low proportion of biomass diesel output

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  • A low energy consumption biomass liquefaction device
  • A low energy consumption biomass liquefaction device
  • A low energy consumption biomass liquefaction device

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Embodiment Construction

[0027] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0028] Such as figure 1 As shown, a low-energy biomass liquefaction device in this embodiment is characterized in that it includes a furnace 1, a silo heating jacket 2, a carbon powder burner 3, a three-stage jacketed air preheater 4, and a biomass Pyrolysis reactor 5, plate nitrogen preheater 6, secondary plate air preheater 7, gas-solid cyclone separator 8, rapid condensation system 9, fans 10a, 10b, primary tube air preheater 11, Biomass bin 12, electric control valve 13, screw feeder 14, agitator 15, metal filter 16, the furnace wall of the furnace 1 is surrounded by three-stage jacketed air preheater 4, carbon powder burner 3 Pass through the three-stage jacketed air preheater 4 and install it in the lower par...

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Abstract

The invention belongs to the field of biomass fast pyrolysis liquefaction, particularly relates to a low energy consumption biomass liquefying device, and solves the problems of overhigh energy consumption and relatively low output proportion in the biomass pyrolysis liquefaction process. The device mainly comprises a feed bin heating jacket, a carbon powder burner, a multistage air preheater, a biomass pyrolysis reactor, a plate-type nitrogen preheater, a gas-solid cyclone separator, a fast condensing system, a metal filter and the like. According to the low energy consumption biomass liquefying device disclosed by the invention, the heating rate of biomass is greatly improved by use of rotating centrifugal force and a honeycomb channel; due to gas-liquid bubbling mixing, quick condensingis realized and the generation proportion of biomass oil is increased. Meanwhile, heat required by pyrolysis is mainly provided by burning biomass carbon particles, so that the self sufficiency of energy is realized; in addition, the heat of flue gas is recovered by multiple stages, so that heat loss of exhausted smoke is reduced, and heat efficiency of the whole set of device is improved. By adopting the low energy consumption biomass liquefying device disclosed by the invention, the oil yield of biomass fast pyrolysis liquefaction can be improved to 65 percent or above.

Description

technical field [0001] The invention belongs to the field of rapid pyrolysis and liquefaction of biomass, and in particular relates to a low-energy consumption biomass liquefaction device. Background technique [0002] my country is a large agricultural country with abundant biomass resources. The annual output of non-wood fibers such as rice straw, wheat straw, bagasse, reed, and bamboo alone exceeds 1 billion tons. Direct combustion, gasification and liquefaction. Among them, biomass liquefaction has a high calorific value of biodiesel, is easy to store and transport, and can be used as a raw material for synthetic chemicals, so it has become an important way of biomass utilization. [0003] The key to biomass pyrolysis liquefaction technology is to have high heating rate and heat transfer rate, short gas residence time, strict temperature control and rapid cooling of pyrolysis volatiles. Only by meeting such requirements can the proportion of oil in the product be maximi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00
CPCC10G1/00
Inventor 闫高程
Owner SHANXI UNIV
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