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Hydrogenation reduction method

A hydrogen and reaction kettle technology, applied in chemical instruments and methods, physical/chemical process catalysts, catalyst activation/preparation, etc., can solve the problem that other gases and water molecules cannot be removed, the purity of hydrogen is not high enough, and the temperature and pressure of hydrogen cannot be controlled. and other problems to achieve the effect of improving the reaction speed and improving the purity

Inactive Publication Date: 2019-04-12
SHANDONG JINDIAN CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when using the hydrogenation reduction method at present, the temperature and pressure of the hydrogen cannot be controlled, resulting in the inability to increase the reaction rate according to the physical properties of the raw materials to be reacted, and the existing method, when the hydrogen is recycled back to the gas storage tank, cannot be effectively recovered. Other gases and water molecules in the hydrogen are effectively removed, resulting in insufficient hydrogen purity in the gas storage tank

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] As a preferred embodiment of the present invention: the purification module in step one and step eight uses the physical properties of hydrogen (such as molar mass, density, etc.) to separate hydrogen from other gases, and the filter module uses a dry filter to separate the hydrogen The contained water molecules are absorbed, and the purification module and the drying module are connected by a seamless metal tube to improve the purity of hydrogen, so that the hydrogen can react more quickly in the subsequent reaction, reduce the generation of impurities, increase the reaction speed, and reduce the reaction time.

Embodiment 2

[0031] As a preferred embodiment of the present invention: the pressure vessel in step 3, when the heating module or the cooling module heats or cools the hydrogen, the hydrogen absorbs and releases heat, and at the same time changes the pressure of the hydrogen, and the pressure is installed on the pressure vessel According to the different raw materials to be reacted, the pressure and temperature of hydrogen can be adjusted to make the hydrogen react with the raw materials to be reacted at the most suitable temperature and pressure to further reduce the generation of impurities during the reaction. According to the pressure gauge on the pressure vessel The pressure of hydrogen in the pressure vessel can be observed in real time.

Embodiment 3

[0033] As a preferred embodiment of the present invention: In step 5, when inspecting the reactor, use inert gas to test the tightness of the reactor three times. The pressure of the three inert gas is 0.1mpa, 0.2mpa and 0.3mpa, each time After testing, the air pressure in the reactor is pumped to 0mpa, which is convenient for testing the tightness of the reactor and reduces the safety risk in production. After testing, the reactor is evacuated to a vacuum state, which can effectively reduce subsequent reactions. The generation of impurities.

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PUM

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Abstract

The invention discloses a hydrogenation reduction method. A hydrogen gas is heated or cooled to change a volume of the hydrogen gas, so that a reaction speed of the hydrogen gas and raw materials to be reacted is improved; an inert gas is used to detect sealing performance of a reaction kettle, so that the safety risk in production is reduced; and the hydrogen gas subjected to a reaction is recovered. According to the method provided by the invention, before the hydrogen gas enters the reaction kettle, the hydrogen gas is heated by a heating module or cooled by a cooling module in the reactionkettle according to physical and chemical properties of raw materials to be reacted, the temperature and volume of the hydrogen gas are changed in the process, and when the volume of the hydrogen gasis increased, the pressure of the hydrogen gas is also increased, so that the temperature and pressure of the hydrogen gas can be adjusted to original values suitable for the reaction, and the reaction speed of the hydrogen gas is effectively improved; and after the reaction is completed, the remaining hydrogen gas passes through a purification module and a drying module, so that other gases andwater molecules in the remaining hydrogen gas can be effectively removed, and the purity of the hydrogen gas in a gas storage tank is improved.

Description

Technical field [0001] The present invention relates to the field of chemical industry, specifically a hydrogenation reduction method. Background technique [0002] Chemical industry is the abbreviation of "chemical process", "chemical industry", "chemical engineering", etc. Any technology that uses chemical methods to change the composition and structure of substances or synthesize new substances belongs to chemical production technology, that is, chemical process. Called chemicals or chemical products. [0003] However, when the hydrogenation reduction method is currently used, the temperature and pressure of the hydrogen cannot be controlled, resulting in the inability to increase the reaction speed according to the physical properties of the reacted raw materials. In addition, in the existing method, the hydrogen cannot be effectively recycled when the hydrogen is circulated back to the gas storage tank. Other gases and water molecules in the hydrogen are effectively removed, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/18
CPCB01J37/18
Inventor 霍东旭王震黄骄勇
Owner SHANDONG JINDIAN CHEM CO LTD