High-pressure in-situ infrared spectroscopy apparatus for monitoring supercritical system on line

An infrared spectrum and infrared spectrometer technology, which is applied in the field of high-pressure in-situ infrared spectrum monitoring devices, can solve the problems of reduced reliability and reliability of measurement results, limited application scope, inability to realize stirring, etc., and achieves improved mass transfer diffusion rate and Test efficiency, overcome the complex structure, and the effect of reasonable design
CN102435573AInactive Publication Date: 2012-05-02SHAANXI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
SHAANXI NORMAL UNIV
Publication Date
2012-05-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

A high-pressure in-situ infrared spectroscopy apparatus for monitoring a supercritical system on line comprises a high-pressure reaction kettle, a controller, an infrared spectrometer and a computer, a sample intake valve and a three-way gas-liquid valve of the high-pressure reaction kettle communicate with a high-pressure injection pump, the high-pressure reaction kettle communicates with a metering pump through the sample intake valve and the three-way gas-liquid valve, communicates with a nitrogen cylinder and a vacuum pump through an exhaust valve and a three-way nitrogen valve and communicates with a pressure sensor through a pipeline, a temperature-measuring thermocouple which is connected with the temperature indicator of the controller through a wire is arranged on the high-pressure reaction kettle, a heater and a temperature-controlling thermocouple which are connected with the temperature controller of the controller through wires are arranged on the high-pressure reaction kettle, the pressure sensor is connected with the pressure indicator of the controller through a wire, and the infrared spectrometer is connected with the computer through a wire. The high-pressure in-situ infrared spectroscopy apparatus also comprises an electromagnetic agitator, an emission bin and an optical fiber, the electromagnetic agitator is arranged under the high-pressure reaction kettle and connected with the speed regulator of the controller, the emission bin is arranged on the infrared spectrometer, and the optical fiber is connected with the emission bin and an infrared sensor inserted into the high-pressure reaction kettle.
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Description

technical field

[0001] The invention belongs to the technical field of high-pressure in-situ infrared spectroscopy monitoring devices, and in particular relates to a high-pressure in-situ infrared spectroscopy equipment or device for on-line monitoring of a supercritical system. Background technique

[0002] High-pressure in-situ infrared spectroscopy technology can be applied to online monitoring of physical transformation or chemical reaction process in a high-pressure / supercritical system under real or near-real pressure and temperature conditions, and to detect the phase behavior of the system and the relationship between components. Dynamically monitor the generation of active species and their evolution with pressure, temperature, time, etc., and study the kinetics and mechanism of physical transformation or chemical reaction. It plays a unique role in understanding the laws of supercritical systems, optimizing process parameters, regulating process results, and promot...

Claims

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