Coal-water slurry fuel and preparation method thereof

A water slurry and fuel technology, which is applied in the field of environment-friendly biomass charcoal water slurry fuel and its preparation, can solve the problems of no process standard, low quality, few varieties, etc., and achieve great economic value, high calorific value, and large calorific value. Effect

Inactive Publication Date: 2012-10-24
北京雷恩新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, compared with foreign developed countries, there is still a big gap in the basic research and applied research of carbonization technology in my country. The production of carbon products has problems such as high energy consumption, serious pollution, no process standards, low quality, and few varieties. Therefore, it is necessary to develop in the direction of resource conservation, high efficiency and energy saving, process standards, clean production, advanced products, and diversified varieties.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] 1. Raw material pretreatment

[0043] Put wood chips with a moisture content of 15-20% (with a lignin content of 25-30%) in a refiner, and grind them into 20-40 mesh powder;

[0044] After adding the above crushed powder into the premixing tank, add water into the premixing tank, stir and mix evenly to make a semi-fluid material; then add catalyst to the premixing tank, mix and stir evenly, and mix the mixture under stirring conditions Preheat to 85-90°C so that the mixed material can quickly rise to the reaction temperature of pre-carbonization treatment when it enters the crude oil reactor; the weight ratio of sawdust and water is 1:3, and the weight of catalyst and semi-fluid material The proportioning ratio is 0.6:100, and the catalyst is sodium carbonate;

[0045] 2. Pre-carbonization treatment

[0046] Send the preheated mixture into the crude oil reactor, turn on the heating device of the crude oil reactor for heating, the temperature and pressure in the crude ...

Embodiment 2

[0055] 1. Raw material pretreatment

[0056] Put rice husks with a moisture content of 15-20% (with a lignin content of 20-22%) in a refiner, and grind them into 20-40 mesh powder;

[0057] After adding the above crushed powder into the premixing tank, add water into the premixing tank, stir and mix evenly to make a semi-fluid material; then add catalyst to the premixing tank, mix and stir evenly, and mix the mixture under stirring conditions Preheat to 85-90°C, so that the mixed material can quickly rise to the reaction temperature of pre-carbonization treatment when it enters the crude oil reactor; the weight ratio of rice husk to water is 1:4, and the ratio of catalyst to semi-fluid material The weight ratio is 0.6:100, and the catalyst is calcium carbonate;

[0058] 2. Pre-carbonization treatment

[0059] Send the preheated mixture into the crude oil reactor, turn on the heating device of the crude oil reactor for heating, the temperature and pressure in the crude oil re...

Embodiment 3

[0068] 1. Raw material pretreatment

[0069] Put corn stalks with a moisture content of 10-15% (with a lignin content of 10-12%) in a refiner and grind them into 20-40 mesh powder;

[0070] After adding the above crushed powder into the premixing tank, add water into the premixing tank, stir and mix evenly to make a semi-fluid material; then add catalyst to the premixing tank, mix and stir evenly, and mix the mixture under stirring conditions Preheat to 85-90°C, so that the mixed material can quickly rise to the reaction temperature of pre-carbonization treatment when it enters the crude oil reactor; the weight ratio of corn stalks to water is 1:5, and the catalyst and semi-fluid materials The weight ratio is 0.5:100, and the catalyst is magnesium carbonate;

[0071] 2. Pre-carbonization treatment

[0072] Send the preheated mixture into the crude oil reactor, turn on the heating device of the crude oil reactor for heating, the temperature and pressure in the crude oil react...

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Abstract

The invention discloses a coal-water slurry fuel and a preparation method thereof. The coal-water slurry fuel includes components of charcoal, water and additives, wherein the additives comprise a dispersant and a stabilizing agent. The preparation method for the coal-water slurry fuel comprises a first step of performing hydro-thermal charing to the raw material biomass to get a mixture of the charcoal and water, and a second step of adding the additives to the mixture of the charcoal and water to obtain a crude product of the coal-water slurry fuel. According to the invention, the biomass, especially the agriculture residue, is used as a raw material to preparing the novel coal-water fuel which has the properties of environmental protection, high caloric value, and large caloric power. The preparation method for the fuel is low in energy consumption, economical and cheap, and easy for operation. The coal-water slurry product has low sulfur content, and has the advantages of few black smoke, big fire, full burning, no flying ash, clean burning, etc. in use.

Description

technical field [0001] The invention relates to a charcoal fuel, in particular to an environment-friendly biochar water slurry fuel and a preparation method thereof. Background technique [0002] my country is a country with more coal and less oil, and coal accounts for 70% of the production and consumption of primary energy. With China's reform and opening up and the sustained and rapid economic development, energy consumption is increasing day by day. However, the growth rate of oil production and oil exploration reserves is far lower than the growth of demand, which makes the supply of clean energy such as oil products in my country tightened for a long time. [0003] Coal water slurry is a coal-based liquid fuel that emerged in the 1970s. It is a mixture of coal, water and chemical additives formulated according to certain requirements. It has good fluidity and stability, is easy to store, and can be atomized and burned. , is a clean fuel with high combustion efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L1/32
Inventor 颉二旺张维
Owner 北京雷恩新材料科技有限公司
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