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A conversion process of biomass and coal

A biomass and process technology, applied in the field of biomass and coal conversion technology, can solve the problems of large amount of waste water and low calorific value of oil products, and achieve the effects of promoting depolymerization, improving liquefaction yield and reducing viscosity

Active Publication Date: 2020-12-08
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects of the existing biomass liquefaction process, such as dehydration of biomass raw materials, strict requirements on reaction atmosphere and catalyst, low calorific value of oil products and large amount of waste water, and further provide A biomass and coal product with low energy consumption, high solid content, good reaction performance, no need for dehydration of biomass raw materials, CO-containing atmosphere, high calorific value of oil products, low waste water generation, and even no waste water Conversion process

Method used

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  • A conversion process of biomass and coal
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Embodiment 1

[0068] This embodiment provides a conversion process of biomass and coal, comprising the following steps:

[0069] catalyst:

[0070] The catalyst is a waste agent of a desulfurizer with iron oxide as an active component, wherein, in the desulfurizer with iron oxide as an active component, calcium bicarbonate is 10g, basic copper carbonate is 12g, γ-Fe 2 o 3 18g, MnO 2 is 8g, NiO is 5g;

[0071] The desulfurization process of the above-mentioned desulfurizer with iron oxide as the active component is summarized as follows:

[0072] 1) Collect the tail gas produced by the fixed bed hydrogenation catalysis of medium and low temperature coal tar;

[0073] 2) The desulfurizing agent of this embodiment is made into columnar catalyst particles with a diameter of 1 mm and a length of 15 mm, and filled in the desulfurization tower to form a desulfurization layer;

[0074] 3) The above-mentioned tail gas is used for 2000h -1 The space velocity passes through the desulfurization...

Embodiment 2

[0087] This embodiment provides a conversion process of biomass and coal, comprising the following steps:

[0088] catalyst:

[0089] The catalyst is amorphous FeOOH; add sulfur: add solid sulfur powder to the above catalyst until the molar ratio of iron to sulfur is 1:2, so as to ensure that the molar ratio of iron to sulfur in the reaction system is 1:2;

[0090] Preparation of aqueous slurry:

[0091] (1) collecting corn stalks, the water content of which is 5-20wt%, and then using an ultrafine pulverizer to pulverize to a particle size of 0.2 μm-5cm;

[0092] (2) Compress the straw crushed in step (1) with a plodder, the compression pressure is 2.5MPa, the compression temperature is 45°C, and compressed to a true density of 1.0kg / m 3 ;

[0093] (3) The straw compressed and formed in step (2) is pulverized again with a jet mill until the particle size is 0.1-500 μm to obtain straw powder;

[0094] (4) Collect lean coal and pulverize it to a particle size of 0.1-500 μ...

Embodiment 3

[0100] This embodiment provides a conversion process of biomass and coal, comprising the following steps:

[0101] catalyst:

[0102] The catalyst is the regeneration of the waste agent of the desulfurizer with iron oxyhydroxide as the active component, wherein, based on the total mass of the desulfurizer with iron oxyhydroxide as the active component, α-FeOOH is 30g, and amorphous iron oxyhydroxide is 20g, potassium oxide 8g, binder kaolin 10g;

[0103] The above-mentioned desulfurizer with iron oxyhydroxide as the active component is used for the desulfurization process of the tail gas produced after the hydrogenation and upgrading of medium and low temperature coal tar in industry as follows:

[0104] 1) Collect the tail gas produced by the fixed bed hydrogenation catalysis of medium and low temperature coal tar;

[0105] 2) The desulfurizing agent of this embodiment is made into columnar catalyst particles with a diameter of 1 mm and a length of 15 mm, and filled in the...

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Abstract

The invention belongs to the technical fields of biomass utilization, energy and chemical industry, and concretely relates to a biomass and coal conversion technology. The conversion technology uses at least one of iron oxide, a desulfurization waste agent of the iron oxide or a regenerated material of the desulfurization waste agent of the iron oxide as a catalyst, uses a water-containing slurry,and controls a molar ratio of the iron element to the sulfur element in a reaction system. It is found that in carbonylation can be effectively utilized to block the free radical polycondensation ofbiomass in the cracking process in the presence of CO and realize active hydrogen transformation and hydrogenation of CO and water; and the biomass solid can directly undergo a conversion reaction without being hydrated in the conversion reaction, so the liquefaction yield is increased, the calorific value of an obtained oil product is improved, and a large amount of waste water is not generated after the conversion reaction is completed.

Description

technical field [0001] The invention belongs to the technical fields of biomass utilization, energy and chemical industry, and in particular relates to a conversion process of biomass and coal. Background technique [0002] With the rapid development of social economy, fossil non-renewable energy sources such as coal, crude oil, natural gas, and oil shale are becoming increasingly exhausted. At the same time, the CO produced by the combustion of such fossil non-renewable energy 2 , SO 2 , NO x Environmental pollution caused by pollutants such as pollutants is also becoming more and more serious, which forces human beings to think about ways to obtain energy and methods to improve the environment. [0003] At present, biomass liquefaction technology has become a new means of obtaining energy. This technology is an important part of the utilization of biomass resources. The liquefaction mechanism is as follows: biomass is first cracked into oligomers, and then dehydrated and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/08
CPCC10G1/08
Inventor 林科郭立新
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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