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Decoupling pyrolysis method and device of granulated biomass

A biomass and pyrolysis technology, applied in biofuels, special dry distillation, petroleum industry, etc., can solve potential safety hazards such as high-value utilization of agricultural and forestry waste biomass, avoid bad coupling, low investment costs, and solve potential safety hazards Effect

Active Publication Date: 2016-04-06
JIANGSU GONGBO ENVIRONMENTAL PROTECTION ENERGY RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The method and device of the present invention can convert low-grade biomass energy into high-grade gas and solid fuel, and solve the potential safety hazards and high-value utilization of agricultural and forestry waste biomass in the prior art

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  • Decoupling pyrolysis method and device of granulated biomass
  • Decoupling pyrolysis method and device of granulated biomass
  • Decoupling pyrolysis method and device of granulated biomass

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Embodiment Construction

[0029] 1. see figure 1 , the flow process of the method of the present invention comprises the following steps:

[0030] (1) charging: close the discharge valve 18 of the pyrolysis chamber 10, the granulated biomass is loaded into the pyrolysis chamber 10 through the feed port 25, so that the volume of the granulated biomass accounts for 10% of the internal volume of the pyrolysis chamber 10 75% to 80%;

[0031] (2) Sealing: After the granulated biomass is loaded, the feed valve 24 is closed and sealed so that external air will not enter the pyrolysis chamber 10;

[0032] (3) Pyrolysis: Open the flue gas valve 2, the flue gas passes through the flue gas inlet 1, the bottom flue gas chamber 22, the flue gas chamber 3, and the array heat exchange tube 16, and then is sent out from the flue gas outlet 6, and the heat of the flue gas passes through The heat transfer effect of the bottom flue gas chamber 22, the flue gas chamber 3, the array heat exchange tube 16 and the heat sin...

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Abstract

The invention provides a decoupling pyrolysis method and device of granulated biomass. The method comprises steps of loading, sealing, pyrolysis, solid discharging and the like. A pyrolysis chamber and a flue gas channel are not communicated with each other; in the pyrolysis process, the pyrolysis chamber is completely isolated from external air and reaches the precipitation temperature of a gas volatile matter through accurate control of flue gas temperature and indirect heating, the gas volatile matter is precipitated from the upper part of the pyrosis chamber, tar volatile matter and fixed carbon are still left in the granulated biomass, individual utilization of the three inhomogeneous combustible components including the gas volatile matter, the tar volatile matter, the fixed carbon and the like of the granulated biomass is realized, poor coupling of combustible materials with different components in a combustion chamber during a combustion reaction is avoided, the combustion efficiency is improved, equipment safety is guaranteed, discharge of pollutants caused by random combustion of agricultural and forestry waste biomass is reduced, high-value resource utilization of the agricultural and forestry waste biomass is realized, and the decoupling pyrolysis method and device have remarkable economic benefits and environmental benefits.

Description

technical field [0001] The invention relates to a preparation method and device for pyrolysis of granulated biomass, in particular to a method and device for decoupling pyrolysis of granulated biomass using agricultural and forestry waste biomass as raw materials, and belongs to the technical field of biomass energy utilization. Background technique [0002] With the increasing shortage of petrochemical resources and the continuous enhancement of people's awareness of environmental protection, the Chinese government requires the prohibition of unorganized burning of agricultural and forestry waste biomass such as straw and the realization of resource utilization. Find feasible ways to reduce resource utilization costs. [0003] Biomass granulation is one of the main methods for the utilization of agricultural and forestry waste biomass in recent years. The combustible components of granulated biomass include about 50% of gas volatiles, about 25% of tar volatiles and part of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B53/08
CPCY02E50/10
Inventor 朱复东冯越
Owner JIANGSU GONGBO ENVIRONMENTAL PROTECTION ENERGY RES INST CO LTD