Method for producing clean coke based on water glass transition state binder

A transition state and binder technology, which is used in the production of clean coke by using water glass transition state binder, can solve the problem of high crushing rate of coke, and achieve the effects of wide source, guaranteed molding rate and low price.

Active Publication Date: 2021-05-25
太原科瑞康洁净能源有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The binders used in these patented coke formulations are mainly used in the cold forming process below 200°C and the hot binder in the dry distillation process above 400°C, but the actual dry distillation process There is a stage where the cold binder fails between 200-400°C and the hot binder has no effect. Due to the lack of use of transition binders in this temperature range, the coke breakage rate is high during the carbonization process.
[0006] After searching, there is no report on the water glass transition state binder used to produce clean coke

Method used

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  • Method for producing clean coke based on water glass transition state binder

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Implement a kind of method that the above-mentioned provided of the present invention is based on water glass transition state binding agent and produce clean type coke, concrete implementation method is as follows:

[0023] (1) Select the raw material composition and quality index of the water glass transition state binder as water glass powder, 99wt% soluble solids, kaolin SiO 2 50wt%, silica SiO 2 96wt%, pregelatinized starch: viscosity 1000mPa.s, limestone CaO56wt% and coal liquefaction residue: residual oil + asphaltene 80wt%;

[0024] ⑵Crush the raw materials of water glass transition state binder, kaolin, silica, limestone and coal liquefaction residue, respectively to particle size ≤ 3mm; water glass powder and pregelatinized starch are used for later use;

[0025] (3) Weigh 10 kg of crushed kaolin, 20 kg of silica, 20 kg of limestone and 50 kg of coal liquefaction residue in parts by weight, and weigh 20 kg of water glass powder and 10 kg of pregelatinized sta...

Embodiment 2

[0035] Implement a kind of method that the above-mentioned provided of the present invention is based on water glass transition state binder and produce clean type coke, concrete implementation is as follows:

[0036] (1) Select the raw material composition and quality index of water glass transition state binder as water glass powder, 98wt% soluble solids, kaolin SiO 2 55wt%, silica SiO2 96.6wt%, pregelatinized starch: viscosity 900mPa.s, limestone CaO54wt% and coal liquefaction residue: residual oil + asphaltene 75wt%;

[0037] ⑵Crush the raw materials of water glass transition state binder, kaolin, silica, limestone and coal liquefaction residue, respectively to particle size ≤ 3mm; water glass powder and pregelatinized starch are used for later use;

[0038] (3) Weigh 9kg of crushed kaolin, 16kg of silica, 17.5kg of limestone and 52.5kg of coal liquefaction residue in parts by weight, and weigh 22.5kg of water glass powder and 12.5kg of pregelatinized starch, mix them toge...

Embodiment 3

[0048] Implement a kind of method that the above-mentioned provided of the present invention is based on water glass transition state binder and produce clean type coke, concrete implementation is as follows:

[0049] (1) The raw material composition and quality index of water glass transition state binder are selected as water glass powder, 97wt% soluble solids, kaolin SiO 2 60wt%, silica SiO 2 97.2wt%, pregelatinized starch: viscosity 800mPa.s, limestone CaO53wt% and coal liquefaction residue: residual oil + asphaltene 70wt%;

[0050] ⑵Crush the raw materials of water glass transition state binder, kaolin, silica, limestone and coal liquefaction residue, respectively to particle size ≤ 3mm; water glass powder and pregelatinized starch are used for later use;

[0051] (3) Weigh 8 kg of crushed kaolin, 12 kg of silica, 15 kg of limestone, and 55 kg of coal liquefaction residue in parts by weight, and weigh 25 kg of water glass powder and 15 kg of pregelatinized starch, mix th...

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Abstract

A method for producing clean coke based on a water glass transition state binder, the method is to select kaolin, silica, limestone and coal liquefaction residue, break them separately, then add water glass powder and pregelatinized starch, and mix evenly through stirring , and then through dry grinding to obtain the alumina transition state binder; select the blended coal, and mix the blended coal and the water glass transition state binder in proportion, cold press molding, dry distillation at high temperature, and then reduce to At room temperature, clean coke can be obtained; the source of raw materials in the invention is wide and abundant, and the price is low. It acts as a bond before it acts, ensuring the molding rate and coke strength of the material in the retort furnace.

Description

technical field [0001] The invention relates to a method for producing clean coke, in particular to a method for producing clean coke by using a water glass transition state binder. Background technique [0002] In some special primary energy endowments that are rich in coal, poor in oil and little in gas, coal combustion is the main way to obtain energy, but the dust, sulfur dioxide, nitrogen oxides, etc. emitted by the direct combustion of a large amount of coal have caused serious harm to the atmospheric environment. Leading to serious air pollution and frequent occurrence of smog. For example, in 2014, China's statistics for civilian coal consumption was 160 million tons, accounting for only 3.8% of the country's coal consumption. Taking sulfur dioxide emissions as an example, the annual emissions of power plants are 200 10,000 tons, and civil scattered combustion is as high as 3.2 million tons, which is 1.6 times the total emissions of power plants. In addition, a serie...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/12C10B57/06
CPCC10B57/06C10L5/12
Inventor 张智聪刘守军杨颂史鹏政杜文广
Owner 太原科瑞康洁净能源有限公司
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