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Test device for weight change of pressurized high-temperature solid example and use thereof

A technology of weight change and testing equipment, which is applied in the direction of measuring equipment, material weighing, instruments, etc., can solve the problems of high price, weighing zero point drift, cumbersome operation, etc., and achieve the effect of high cost performance, simple structure and high flexibility

Inactive Publication Date: 2010-12-15
SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The pressurized thermogravimetric analyzer produced abroad includes a suspended pressure-bearing balance, a quartz tube furnace, a pressure-bearing shell, a liftable support, a console, a gas source, a computer and supporting software, but the price is relatively expensive and the operation is cumbersome. It is impossible to obtain a large number of samples under different conditions and reaction times for thermogravimetric testing of micro samples, and it cannot be used in corrosive atmospheres containing sulfur, nitrogen, chlorine, etc., and in the process of temperature programming, the zero point of weighing drifts, and constant temperature cannot be achieved operate

Method used

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  • Test device for weight change of pressurized high-temperature solid example and use thereof
  • Test device for weight change of pressurized high-temperature solid example and use thereof
  • Test device for weight change of pressurized high-temperature solid example and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The reaction tank (2) has a pressure regulating port (12), a charging and discharging reaction pressure port (13), an electric furnace power supply interface (14) and a pressure gauge interface (5); the tubular resistance furnace (16) is fixed on the reaction tank (2 ) inside; the reaction tube (4) is located in the tubular resistance furnace (16), and the lower end of the reaction tube (4) has a reaction gas inlet (1) and a temperature measuring port (17), and the upper end of the reaction tube (4) passes through The ball valve (11) is connected with the sampling and sampling system, and consists of sampling and sampling port (6), magnet (8), stainless steel tube (9), stainless steel wire (7), sample basket (3) and sampling and sampling charging and discharging port (10) Stakeout system, wherein the magnet (8) is composed of two magnets inside and outside the stainless steel tube (9), the stainless steel wire (7) is located in the stainless steel tube (9), the sample ba...

Embodiment 2

[0033] Put 50g of Jincheng anthracite into the sample basket (3) from the sampling opening (6), seal the sampling opening (6); open the sampling filling and discharging pressure opening (10) and the filling and discharging reaction pressure opening (13), and feed Protect the atmosphere with nitrogen, and reach the pyrolysis pressure of 0.6MPa (gauge pressure), then close the sampling charging and discharging port (6) and the charging and discharging reaction pressure port (13); turn on the power, start the temperature program; reach the pyrolysis temperature of 600 After ℃, open the ball valve (11), open the pressure regulating port (12), and adjust the pressure. After the system is stable, use the magnet (8) to quickly slide the sample basket (3) into the constant temperature section of the reaction tube (4) to start After 5 minutes of pyrolysis, the sample basket (3) was rapidly lifted away from the reaction zone, and the ball valve (11) was closed; the pressure taking port (...

Embodiment 3

[0036] Put 100g of Jincheng anthracite into the sample basket (3) from the sampling opening (6), seal the sampling opening (6); open the sampling filling and discharging pressure opening (10) and the filling and discharging reaction pressure opening (13), and feed Protect the atmosphere with nitrogen, and reach the pyrolysis pressure of 0.3MPa (gauge pressure), and then close the sampling charging and discharging port (6) and the charging and discharging reaction pressure port (13); open the ball valve (11), and start from the reaction gas inlet (1) Feed reaction gas 60% CO 2 +40%N 2 , open the pressure regulating port (12), and adjust the pressure. After the system is stable, quickly slide the sample basket (3) into the constant temperature section of the reaction tube (4) with the magnet (8), turn on the power, and start the program to increase the temperature. The gasification temperature was 900°C, and the gasification reaction was started for 5 minutes; the sample basket...

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Abstract

The invention discloses a pressurized high-temperature solid sample weight change testing device comprising a tube-type resistance furnace (16) and a sample taking and placing system. The pressurized high-temperature solid sample weight change testing device is characterized in that a reaction pot (2) is provided with a pressure regulation opening (12), a charging and discharging reaction pressure opening (13), an electric furnace power supply connecting opening (14) and a pressure gauge opening (5); the tube-type resistance furnace (16) is fixed in the reaction pot (2); a reaction tube (4) is arranged in the tube-type resistance furnace (16); the lower end of the reaction tube (4) is provided with an air inlet (1) and a temperature measurement opening (17), and the upper end is connectedwith the sample taking and placing system through a ball valve (11); a sample taking and placing opening (6), a magnet (8), a stainless steel tube (9), a stainless steel wire (7), a sample basket (3)and a sample taking and placing charging and discharging opening (10) form the sample taking and placing system; the magnet (8) comprises a stainless steel tube (9) as well as an inner magnet and an outer magnet; the stainless steel wire (7) is arranged in the stainless steel tube (9); the sample basket (3) is connected with the lower end of the stainless steel wire (7); the upper end of the stainless steel wire (7) is connected with the magnet (8) arranged in the stainless steel tube (9); and the magnet (8) slides up and down along the stainless steel tube (9). The invention has the advantages of simple structure and convenient operation.

Description

technical field [0001] The invention belongs to a test device and application method for sample weight change of carbonaceous substances under high pressure, high temperature and various reaction atmospheres. technical background [0002] There are few devices for testing the weight change of pressurized high-temperature solid samples on the market, and most of the operating pressures of general thermogravimetric analyzers are carried out under normal pressure. The pressurized thermogravimetric analyzer produced abroad includes a suspended pressure-bearing balance, a quartz tube furnace, a pressure-bearing shell, a liftable support, a console, a gas source, a computer and supporting software, but the price is relatively expensive and the operation is cumbersome. It is impossible to obtain a large number of samples under different conditions and reaction times in the thermogravimetric test of micro samples, and it cannot be used in corrosive atmospheres containing sulfur, nit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N5/00
Inventor 房倚天李春玉夏立森毛子刚杨金权
Owner SHANXI INST OF COAL CHEM CHINESE ACAD OF SCI