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Formed coke and production method of formed coke, coal gas and tar

A production method and dry-based technology, which is applied in coking ovens, petroleum industry, and gas purification of condensed non-gaseous materials, etc., can solve the problems of high production costs, and achieve the effects of low production costs, reduced ash content, and good thermal stability

Active Publication Date: 2013-02-27
CHNA ENERGY INVESTMENT CORP LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] (1) Because it uses bituminous coal or anthracite as the main raw material and combines a certain amount of coal with good coking properties to prepare molded coke, resulting in high production costs
[0016] (2) Among them, the use of binder will also make its production cost high

Method used

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  • Formed coke and production method of formed coke, coal gas and tar
  • Formed coke and production method of formed coke, coal gas and tar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The air-dried basis moisture content is 7.83 mass%, the dry basis ash content is 9.34 mass%, the dry basis volatile content is 39.54 mass%, the dry basis fixed carbon content is 51.12%, the dry basis high calorific value is 6232 cal / g, and the particle size is 24 The briquette raw material of lignite briquette of ×32×5mm was put into an externally heated carbonization furnace (not shown in the figure) to carry out carbonization test. Set the heating rate to 10-15°C / min, and keep the temperature at 900°C for 2 hours to produce lignite shaped coke. The dry base ash content of the obtained molded coke is 18.74% by mass, and the dry base volatile content is 2.93% by mass. The base fixed carbon content is 78.88% by mass, the cold compressive strength is over 400 N / ball, the heat stability is over 96%, and the dry base high calorific value is 6648 cal / g.

[0036] Secondary cooling is used for separation, wherein the outlet temperature of the primary condenser is 40-80°C, and ...

Embodiment 2

[0038] The air-dried basis moisture content is 7.83 mass%, the dry basis ash content is 9.34 mass%, the dry basis volatile content is 39.54 mass%, the dry basis fixed carbon content is 51.12%, the dry basis high calorific value is 6232 cal / g, and the particle size is 24 The briquette raw material of lignite briquette of ×32×5mm was put into an externally heated carbonization furnace (not shown in the figure) to carry out carbonization test. Set the heating rate at 10-15°C / min, and keep the temperature at 850°C for 2 hours to produce lignite shaped coke. The dry base ash content of the obtained molded coke is 18.71% by mass, and the dry base volatile content is 4.28% by mass. The base fixed carbon content is 77.81% by mass, the cold compressive strength is over 400 N / ball, the heat stability is 96.8%, and the dry base high calorific value is 6624 cal / g.

[0039] Secondary cooling is used for separation, wherein the outlet temperature of the primary condenser is 40-80°C, and the...

Embodiment 3

[0041]The air-dried basis moisture content is 7.83 mass%, the dry basis ash content is 9.34 mass%, the dry basis volatile content is 39.54 mass%, the dry basis fixed carbon content is 51.12%, the dry basis high calorific value is 6232 cal / g, and the particle size is 24 The briquette raw material of lignite briquette of ×32×5mm was put into an externally heated carbonization furnace (not shown in the figure) to carry out carbonization test. Set the heating rate at 10-15°C / min, and keep the temperature at 800°C for 2 hours to produce lignite shaped coke. The dry base ash content of the obtained molded coke is 18.80% by mass, and the dry base volatile content is 3.81% by mass. The base fixed carbon content is 78.67% by mass, the cold compressive strength is over 400 N / ball, the heat stability is over 96%, and the dry base high calorific value is 6729 cal / g.

[0042] Secondary cooling is used for separation, wherein the outlet temperature of the primary condenser is 40-80°C, and t...

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Abstract

The invention relates to formed coke and a production method of formed coke, coal gas and tar. The mass percent of dry base volatile components of the formed coke is lower than 10 percent, the mass percent of the dry base fixed carbon content is more than 70 percent, the cold pressure intensity is higher than 400 N / ball, the thermal stability is higher than 90 percent, and the dry base high-position heat generation quantity is more than 6000 cal / g. The production method comprises the following steps: using binderless hot pressing moulded coal of low-deterioration dgree coal as raw materials to carry out dry distillation in an external heating type dry distillation device at the temperature between 550 and 1000 DEG C for obtaining the formed coke; and then, obtaining the coal gas and the tar through indirectly cooling and separating obtained gaseous products. The formed coke produced by the method of the invention has low production cost and good reactive activity, and the production process is simple and effective.

Description

technical field [0001] The invention relates to a molded coke and a production method of the molded coke, gas and tar. Specifically, the present invention relates to a molded coke and a method for producing molded coke, gas and tar by hot-pressing molded coal with low deterioration degree and no binder. Background technique [0002] In terms of coal deep processing technology, the use of appropriate retort processing technology to process low metamorphic coal to produce briquette-shaped coke products can realize efficient and clean utilization of low metamorphic coal. [0003] Lignite or sub-bituminous coal is a coal with a low degree of metamorphism, which is characterized by high water content, high volatile matter, and low carbon and hydrogen content. In particular, lignite has a high oxygen content. Due to the rich oxygen-containing groups such as phenolic hydroxyl groups and carboxyl groups, it has disadvantages such as low mechanical strength, low calorific value, eas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L5/02C10B53/08C10B47/02C10K1/04
Inventor 邵俊杰朱书全苏晓辉初茉陈元春李玉洁
Owner CHNA ENERGY INVESTMENT CORP LTD
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