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A method for preparing bio-oil by ball milling pretreatment microcrystalline cellulose pyrolysis

A microcrystalline cellulose and pretreatment technology, which is applied in the preparation of biofuels, biological raw materials, liquid hydrocarbon mixtures, etc., can solve the problems of cumbersome processing and achieve the effect of high economic value

Active Publication Date: 2020-12-01
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These effective methods all need to add minerals, solvents, etc., and the processing is relatively cumbersome

Method used

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  • A method for preparing bio-oil by ball milling pretreatment microcrystalline cellulose pyrolysis

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1, preparation of bio-oil by pyrolysis of microcrystalline cellulose

[0030] Get 1 part of microcrystalline cellulose, when the furnace temperature rises to 400 °C, slowly add cellulose (the size of the feed is related to the reaction device, for the experimental device used in the embodiment, the feed is 0.10g / min, nitrogen The purging speed is 30ml / min), so that the cellulose is pyrolyzed through the high temperature zone, and the products of cellulose pyrolysis are separated to obtain liquid, gas and solid products.

Embodiment 2

[0031] Example 2, preparation of bio-oil by pyrolysis of microcrystalline cellulose

[0032] The operation of this embodiment is the same as that of Embodiment 1, except that the temperature of the furnace in this embodiment is 420°C.

Embodiment 3

[0033] Embodiment 3, preparation of bio-oil by pyrolysis of microcrystalline cellulose

[0034] The operation of this embodiment is the same as that of Embodiment 1, except that the temperature of the furnace in this embodiment is 450° C.

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Abstract

The invention relates to a method for preparing biological oil by ball milling pretreatment and pyrolysis of microcrystalline celluloses. The method comprises the steps: S1, carrying out ball millingpretreatment on microcrystalline celluloses; S2, gradually adding the celluloses into a pyrolysis device for a pyrolysis reaction under the temperature condition of 400-600 DEG C and at the protectiveatmosphere of inert gases; and S3, ending the reaction, separating and collecting a product. The celluloses are subjected to ball milling treatment, so that the crystallinity of the celluloses is reduced, the highest yield of the biological oil can be obtained at 450 DEG C, the pyrolysis temperature is lowered, the energy consumption is reduced, and the pyrolysis efficiency is increased.

Description

technical field [0001] The invention belongs to the field of organic chemical industry, and in particular relates to a method for preparing bio-oil by pyrolysis of ball-milling pretreated microcrystalline cellulose. Background technique [0002] Today, the exploitation and use of a large number of fossil resources emits a large amount of carbon dioxide, sulfur dioxide and other gases. The emission of these gases has not only caused increasingly serious environmental problems, but also the extensive exploitation and use of fossil resources has made the fossil resources such as coal, oil and natural gas that can be developed and utilized on the earth less and less. Therefore, it is necessary to look for and develop renewable Resources are very necessary, and biomass resources can just solve these problems. At present, biomass is the only renewable energy that can obtain liquid fuel, and it has received extensive attention from all over the world. As the main component of bio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G3/00C10B53/02C10L3/06
CPCC10B53/02C10G3/00C10L3/06Y02E50/10Y02P30/20
Inventor 赵岩杨丽群刘银
Owner ANHUI UNIV OF SCI & TECH
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