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Supercritical carbon dioxide experimental equipment

A technology for carbon dioxide, laboratory equipment, applied in the production of bulk chemicals, chemical instruments and methods, chemical/physical processes, etc.

Inactive Publication Date: 2014-05-21
DALIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the supercritical technology used to purify the crude product is supercritical extraction technology. This treatment method generally extracts the reactant from the product. The reactant should have good solubility in supercritical carbon dioxide, that is, the operation process requires higher pressure (generally greater than 20MPa) and temperature and a longer time, and the consumption of carbon dioxide is also larger.

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  • Supercritical carbon dioxide experimental equipment
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Embodiment Construction

[0018] The best embodiment of the present invention will be described in detail below in conjunction with technical solutions and accompanying drawings.

[0019] Such as figure 1 Shown is an embodiment of the multifunctional supercritical carbon dioxide experimental equipment of the present invention. A detachable sintered plate cylinder is arranged in the high-pressure vessel, thereby making the high-pressure vessel suitable for various supercritical carbon dioxide experiments. The experimental device mainly consists of a carbon dioxide cylinder 1, a cold trap 3, a high-pressure metering pump 4, an intake fine-tuning valve 6, a high-pressure container 8, a detachable sintered plate cylinder 9, a polytetrafluoroethylene magnetic stirrer 10, a constant temperature device 11, a magnetic Stirring controller 12, discharge fine-tuning valve 14, material collector 15 and flow meter 16 (the rest are conventional accessories, such as temperature and pressure measuring instruments, th...

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Abstract

The invention relates to supercritical carbon dioxide experimental equipment, which comprises a carbon dioxide gas cylinder, a cold trap, a high-pressure metering pump, a gas inlet micrometering valve and a high-pressure container, wherein a gas inlet tube, a thermoelectric couple sleeve and a discharge tube penetrate through a top cover of the high-pressure container; a polytetrafluoroethylene magnetic force stirrer is arranged at the bottom of the high-pressure container, and a magnetic force stirring controller is arranged on the outer part below the high-pressure container; and the high-pressure container is arranged in a constant temperature cavity of a constant temperature device. In addition, the output end of the discharge tube is communicated to a material collector by a discharge micrometering valve. The supercritical carbon dioxide experimental equipment is suitable for a supercritical carbon dioxide extraction technology, chemical reaction in supercritical carbon dioxide, the purification of crude products in the supercritical carbon dioxide, and the measurement of phase equilibrium and melting points of solutes in the supercritical carbon dioxide. The supercritical carbon dioxide experimental equipment has the characteristic of simple structure, and is suitable for multiple supercritical carbon dioxide experiments.

Description

technical field [0001] The invention relates to the field of chemical machinery, more specifically, relates to a kind of equipment that can be used for various supercritical carbon dioxide experiments. Background technique [0002] As a special solvent, supercritical fluid has very special properties. For example, its density is hundreds of times that of gas, close to liquid, so it has strong dissolving ability; its viscosity is equivalent to that of gas, and its diffusion coefficient is hundreds of times larger than that of liquid, close to gas, so it dissolves in supercritical fluid Diffusion of substances is very easy and the penetration ability is very strong. Near the critical point, the density of a supercritical fluid varies greatly with temperature, especially pressure (thus its solvency varies greatly with temperature, especially pressure), which can be hundreds or even thousands of times. These unique balance and transfer properties of supercritical fluids, as we...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J3/00
CPCY02P20/54
Inventor 詹世平任建鹏
Owner DALIAN UNIV
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