Method and device for biomass aerobic carbonizing and decomposing

A technology for biomass and biomass raw materials, which is applied in the fields of biofuels, educts, special forms of dry distillation, etc., can solve the problems of low efficiency, high cost, and different biomass gasification, and achieve good appearance, good quality, and product quality. various effects

Pending Publication Date: 2018-10-19
四川大宇中和生物质能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In view of the defects of low efficiency and high cost existing in the existing biomass decomposition process and decomposition device, the present invention proposes a biomass aerobic carbonization decomposition method. Different, it can produce four kinds of products including biomass charcoal, combustible gas, wood vinegar and wood tar, with various products and high added benefit value; aerobic carbonization also significantly improves the efficiency of carbonization decomposition

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  • Method and device for biomass aerobic carbonizing and decomposing
  • Method and device for biomass aerobic carbonizing and decomposing
  • Method and device for biomass aerobic carbonizing and decomposing

Examples

Experimental program
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Effect test

Embodiment 1

[0066]This embodiment provides a biomass aerobic carbonization decomposition method, which specifically includes: sending the dried biomass raw material into a carbonization furnace for ignition and carbonization decomposition, and introducing oxygen into the carbonization furnace so that the oxygen content in the carbonization furnace At 8%, the solids produced are cooled and stored, and the gases produced are filtered, cooled and decoked.

[0067] The temperature in the carbonization furnace is controlled at 850°C.

[0068] The dried biomass needs to be pulverized to a length of 10 mm before being sent into the carbonization furnace.

[0069] After the gas is filtered, cooled and decoked, the oil-water mixture and combustible gas are obtained. The oil-water mixture is also separated from oil and water to obtain wood vinegar and wood tar.

[0070] The combustible gas is also subjected to gas purification to separate the mixture of water, wood tar and wood vinegar, and the se...

Embodiment 2

[0072] This embodiment provides a biomass aerobic carbonization decomposition method, which specifically includes: sending the dried biomass raw material into a carbonization furnace for ignition and carbonization decomposition, and introducing oxygen into the carbonization furnace so that the oxygen content in the carbonization furnace At 9%, the solids produced are cooled and stored, and the gases produced are filtered, cooled and decoked.

[0073] The temperature in the carbonization furnace is controlled at 120°C.

[0074] The dried biomass needs to be crushed to a length of 1 mm before being sent into the carbonization furnace.

[0075] After the gas is filtered, cooled and decoked, the oil-water mixture and combustible gas are obtained. The oil-water mixture is also separated from oil and water to obtain wood vinegar and wood tar.

[0076] The combustible gas is also subjected to gas purification to separate the mixture of water, wood tar and wood vinegar, and the separ...

Embodiment 3

[0078] This embodiment provides a biomass aerobic carbonization decomposition method, which specifically includes: sending the dried biomass raw material into a carbonization furnace for ignition and carbonization decomposition, and introducing oxygen into the carbonization furnace so that the oxygen content in the carbonization furnace At 15%, the solids produced are cooled and stored, and the gases produced are filtered, cooled and decoked.

[0079] The temperature in the carbonization furnace is controlled at 650°C.

[0080] The dried biomass needs to be crushed to a length of 120 mm before being sent into the carbonization furnace.

[0081] After the gas is filtered, cooled and decoked, the oil-water mixture and combustible gas are obtained. The oil-water mixture is also separated from oil and water to obtain wood vinegar and wood tar.

[0082] The combustible gas is also subjected to gas purification to separate the mixture of water, wood tar and wood vinegar, and the se...

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Abstract

The invention discloses a method and a device for biomass aerobic carbonizing and decomposing. The method comprises the following steps of sending the dried biomass raw material into a carbonizing furnace to ignite, carbonize and decompose; leading oxygen gas into the carbonizing furnace, so that the content of oxygen gas in the carbonizing furnace is 8% to 15%; cooling the produced solid, and storing; filtering the produced gas, cooling and decoking. The device comprises the carbonizing furnace and a conveying device, wherein the carbonizing furnace comprises a furnace body and a gas supply main pipe; the conveying device is arranged in the furnace body; the biomass falls onto the conveying device via a material inlet of the furnace body; the conveying device is used for conveying the biomass; in the conveying process, the biomass is carbonized and decomposed; the carbonized and decomposed biomass charcoal is conveyed to a material outlet of the furnace body by the conveying device, and is discharged out by the material outlet of the furnace body; the gas produced in the carbonizing and decomposing process is exhausted out of the gas outlet of the furnace body. The method and thedevice have the advantages that the products are diversified, the carbonizing efficiency is high, the device is simple, the control is easy, the land occupation area is reduced, and the cost is obviously reduced.

Description

technical field [0001] The invention belongs to the field of biomass treatment, and in particular relates to a biomass carbonization decomposition method and a device thereof. Background technique [0002] Biomass refers to various organisms produced through photosynthesis using the atmosphere, water, land, etc., that is, all living organic substances that can grow are collectively referred to as biomass. It includes plants, animals and microorganisms. Broad concept: Biomass includes all plants, microorganisms, animals that feed on plants and microorganisms, and their wastes. Representative biomass is crops, crop waste, wood, wood waste and animal manure. Narrow concept: Biomass mainly refers to lignocellulose such as straw and trees other than grain and fruit in the process of agricultural and forestry production, leftovers of agricultural product processing industry, agricultural and forestry waste, and poultry manure and waste in the process of animal husbandry producti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B57/00C10C1/00C10C5/00
CPCC10B53/02C10B57/00C10C1/00C10C5/00Y02P20/145Y02E50/10
Inventor 曹庆祥刘强谢振飞
Owner 四川大宇中和生物质能源科技有限公司
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