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Binder special for coal briquette for Lurgi pressurized gasification

A technology of binder and briquette, which is used in the special binder for briquette for Luqi gasification, the preparation of briquette, and the special binder for gas briquette for Luqi pressurized gasifier, which can solve the problem of Coal binder has problems such as high ash content, low ash melting temperature, and low bonding strength, etc., to achieve the effect of being conducive to continuous operation, high ash melting temperature, and expanding the range of raw materials

Active Publication Date: 2013-03-13
CHINA COAL RES INST
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0013] The briquette binder of the prior art has high ash content, low bonding strength, low ash melting temperature, or high cost

Method used

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  • Binder special for coal briquette for Lurgi pressurized gasification

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0041] Measurement methods

[0042] 1. Measurement method of briquette drop strength

[0043] According to the method stipulated in MT / T925-2004, the main points of the measurement method are: take a certain amount of briquette samples and weigh them, drop them freely from a height of 2m onto a steel plate with a specified thickness, and drop the briquettes with a particle size greater than 13mm from the dropped briquettes. The briquettes were dropped again for a total of 3 times, and the drop strength of the briquettes was represented by the percentage of the mass of the briquettes with a particle size greater than 13 mm after the third drop to the mass of the prototype coal sample.

[0044] 2. Measurement method of thermal stability of briquette

[0045] According to the industry standard MT / T924-2004, the main points of the measurement method are: select a crack-free and basically complete molded coal from the molded coal samples taken according to the regulations of ...

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Abstract

The invention relates to coal briquette binders, particularly relates to a binder special for a coal briquette for Lurgi pressurized gasification, and more particularly relates to a binder, which contains silica gel, silica alumina and ammonium carbamate, special for a coal briquette for Lurgi pressurized gasification. The invention further relates to a coal briquette containing the binder and a preparation method of the coal briquette.

Description

technical field [0001] The present invention relates to a briquette binder, in particular to a special binder for gas briquette used in a Lurgi pressurized gasifier, and more particularly to a Lurgi binder containing silica gel, silica-alumina, and ammonium carbamate. A special binder for briquette for gasification; the present invention also relates to a briquette containing the briquette binder and a preparation method for the briquette. Background technique [0002] At present, my country's normal-pressure fixed-bed gas-making briquette technology is relatively mature. About 10 million tons of this kind of gas-making briquette are used in the whole country every year. With the development of gasification technology and gasification scale, the use of large pressurized gasifier is a development direction. Relying on its unique advantages, Lurgi pressurized gasifier has been promoted and applied in more and more enterprises. There are about 200 Lurgi furnaces in operation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/10C10L5/12C10J3/02
Inventor 姜英韩锦德王东升刘明锐白向飞罗陨飞
Owner CHINA COAL RES INST
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