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Method for continuously measuring reaction speed of carbon-containing solid substances such as coal

A solid matter, reaction rate technique

Pending Publication Date: 2017-02-08
HANDAN COLLEGE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the reaction atmosphere of the thermogravimetric analyzer is relatively simple, and only a small amount of sample can be used for thermogravimetric test, the data representativeness is poor, and the price is relatively expensive

Method used

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  • Method for continuously measuring reaction speed of carbon-containing solid substances such as coal
  • Method for continuously measuring reaction speed of carbon-containing solid substances such as coal
  • Method for continuously measuring reaction speed of carbon-containing solid substances such as coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Continuously measure the reaction rate of coal under carbon dioxide atmosphere. The main equipment used includes KTL1400 tubular heating furnace 10 produced by Nanjing Nanda Instrument Co., Ltd., corundum reaction tube 5, metal coil cooling water device 11 and gas detector 14.

[0029] (1) Put 50mg of granular coal sample into the middle of the reaction tube 5 in the tubular heating furnace 10; Gas port 13 connection;

[0030] (2), pass carbon dioxide 1 into the reaction tube 5 from the air inlet 4; simultaneously open the gas detector 14 and the computer 15, and start measuring the gas at the gas outlet 13;

[0031] (3) After the signal of the gas detector 14 is stable, turn on the power supply of the tubular heating furnace 10, set the temperature rise program of the temperature controller 6, and make the tubular heating furnace 10 heat the reaction tube 5 at a heating rate of 20°C / min The coal sample in; Simultaneously, open cooling water device 11;

[0032] (4), a...

Embodiment 2

[0034] In this example, the sample is petroleum coke, the dosage is 1g, the reaction atmosphere is a mixture of oxygen and nitrogen, and the tubular heating furnace is BLMT-1600 produced by Luoyang Bolaimante Experimental Electric Furnace Co., Ltd. min, the reaction tube is a quartz tube, the cooling water device is a plastic coil type, and the others are the same as in Example 1. For the gasification rate of petroleum coke at 1°C / min and a mixed atmosphere of oxygen and nitrogen, see image 3 .

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Abstract

The invention provides a method for continuously measuring the reaction speed of carbon-containing solid substances such as coal. According to the method, samples are put to a middle position of a reaction pipe (5) in a tubular heating furnace (10); a temperature control instrument (6) is connected with a thermocouple (8) and the tubular heating furnace (10); the samples in the reaction pipe (5) are heated according to the set temperature rise speed; the reaction gas enters the reaction pipe (5) from a gas inlet opening (4) to continuously take a reaction with the samples; gas products are cooled by a cooling water device (11), and then enters a gas detection instrument (14) connected with a computer (15) through a gas outlet opening (13); the gas detection instrument (14) continuously detects the reaction speed; the computer (15) automatically records data. The method provided by the invention has the advantages that the operation is simple; the universality is high; the data is reliable; the method is applicable to the continuous measurement of the reaction speed of various carbon-containing solid substances under the conditions of each atmosphere and temperature rise speed; the data can be automatically recorded.

Description

technical field [0001] The invention belongs to a method for measuring the reaction rate, in particular to a continuous test method for the reaction rate of carbon-containing solid substances such as coal. Background technique [0002] Carbonaceous solid substances such as coal are used for combustion and gasification, and it is necessary to master their reaction rates at different temperatures and atmospheres. Thermogravimetric analyzers have been widely used to measure the reaction rate of carbon-containing solid substances such as coal. This instrument can measure the quality change of coal and other carbon-containing solid substances with time at a certain temperature. However, the reaction atmosphere of the thermogravimetric analyzer is relatively simple, and the thermogravimetric test can only be performed on a small amount of samples, the data representativeness is poor, and the price is relatively expensive. Contents of the invention [0003] The purpose of this i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/62G01N30/02G01N21/3504G01N33/00
CPCG01N21/3504G01N27/62G01N30/02G01N33/0004
Inventor 任立伟魏蕊娣高玉红
Owner HANDAN COLLEGE
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