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A biomass pyrolysis gasification system and a pyrolysis gasification method

A technology for pyrolysis gasification and biomass, which is applied in gasification process, biofuels, manufacture of combustible gas, etc., can solve problems such as low thermal efficiency, and achieve the effect of high energy efficiency, clean and efficient one-step conversion

Pending Publication Date: 2018-04-17
WUHAN RUNDO BIOTECHNOLOGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, an object of the present invention is to propose biomass pyrolysis gasification system and pyrolysis gasification method, utilize this system and method to carry out pyrolysis and gasification to biomass and solve the problem of low thermal efficiency in the pyrolysis process, maximize Convert biomass into oil and gas resources, and truly realize the clean and efficient utilization of biomass

Method used

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  • A biomass pyrolysis gasification system and a pyrolysis gasification method

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Embodiment

[0079] Take wood chips as an example, the main properties of wood chips are as follows:

[0080] Table 1

[0081] project

[0082] The particle size is Sawdust <8mm is added from the top of the regenerative biomass pyrolysis and gasification system. The regenerative radiant tube uses low-calorific value gas as the raw material gas, and the pyrolysis temperature is 550°C. The medium and low temperature semi-coke falls in the lower part of the regenerative biomass pyrolysis gasifier to contact the steam and oxygen to form a swirling fluidized state, and a combustion gasification reaction occurs at a temperature of 1000°C. The semi-coke combustion gasification produces low-temperature coal gas which rises and contacts the medium and low-temperature semi-coke for gas-solid heat exchange, and further extracts the semi-coke volatiles to produce oil and gas. The raw gas outlet temperature of the regenerative biomass pyrolysis gasifier is 750°C, and it enters the high-temperature dust ...

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Abstract

A biomass pyrolysis gasification system and a pyrolysis gasification method are disclosed. The system includes a biomass pyrolysis gasification furnace, a high-temperature dedusting device and a wasteheat boiler. The biomass pyrolysis gasification furnace includes a pyrolysis furnace body and a gasification furnace body which are formed in an up-down integrated manner. A plurality of heat accumulating type radiant tubes are arranged in the pyrolysis furnace body. The top of the pyrolysis furnace body is provided with a biomass inlet. The lower part of the gasification furnace body is providedwith a sandwich structure. The inner wall of the sandwich structure includes a hopper-type discharging part and a blanking pipe. The bottom end of the blanking pipe is a solid-state material outlet.The side wall of the hopper-type discharging part is provided with a plurality of through holes. The external wall of the sandwich structure is provided with an oxygen inlet and a steam inlet. The side wall where the pyrolysis furnace body and the gasification furnace body are connected is provided with a high-temperature oil gas outlet. The high-temperature dedusting device is connected to the high-temperature oil gas outlet. The waste heat boiler is connected to a high-temperature purified oil gas outlet of the high-temperature dedusting device. Biomass can be converted into oil and gas resources to the utmost by the system, and clean and efficient utilization of the biomass is really achieved.

Description

Technical field [0001] The present invention belongs to the field of biomass energy utilization. Specifically, the present invention relates to a biomass pyrolysis gasification system and a pyrolysis gasification method. Background technique [0002] Biomass energy is the fourth largest resource on the planet, second only to coal, oil, and natural gas. It is also the largest renewable energy source. Biomass has the characteristics of wide distribution, abundant reserves, renewability, and low pollution, and is one of the most potential fossil energy alternative energy sources. [0003] At present, the energy utilization of biomass energy is mainly based on fermentation to produce fuel, biogas, gasification, rapid pyrolysis, and carbonization. Among them, the fermentation production of fuels and biogas mainly use herbaceous plants. The technology has a long production cycle and low yields and other shortcomings restrict its development; gasification production of gas technology is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/66C10J3/62C10J3/80C10J3/84C10J3/86C10B53/02C10B47/00
CPCC10B47/00C10B53/02C10J3/62C10J3/66C10J3/80C10J3/84C10J3/86C10J2300/0976C10J2300/0916C10J2300/0959C10J2300/0943Y02P20/129Y02E50/10
Inventor 孙宝林陈水渺梅磊赵延兵吴道洪
Owner WUHAN RUNDO BIOTECHNOLOGY CO LTD
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