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Production technology for environment-friendly insulating gas and industrial production device

A technology of insulating gas and production process, which is applied in the preparation of acyl halide, dehydration of carboxylic acid amide, and preparation of organic compounds, etc. It can solve the problems of uneconomical industrial production, high cost, perfluoropentacarbonone and perfluorotetracarbonyl Complicated reaction conditions and other issues, to achieve the effect of non-toxic recovery, easy recovery, and low-cost replacement

Active Publication Date: 2017-07-28
STATE GRID CORP OF CHINA +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the reaction conditions of perfluoropentacarbonone and perfluorotetracarbonnitrile are complicated, and the cost is high, and it is still impossible to carry out industrial production economically.

Method used

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  • Production technology for environment-friendly insulating gas and industrial production device
  • Production technology for environment-friendly insulating gas and industrial production device
  • Production technology for environment-friendly insulating gas and industrial production device

Examples

Experimental program
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Effect test

Embodiment 1

[0042] See figure 1 As shown, the first fixed-bed reactor 1 is 80cm long, 1 inch pipe diameter, and the reaction temperature is 250°C. 10% silver oxide supported on activated carbon is used as the catalyst. The catalyst filling ratio in the reactor is 50% (400mL). 2 (200mL / min) and perfluoro-2-butene (200mL / min) enter the first fixed-bed reactor 1 through the preheated mixing pipeline for reaction, and the reaction pressure is 2bar. The effluent gas from the first fixed bed reactor 1 is mixed with 1.2 equivalents of HFP (450 mL / min) and enters the second fixed bed reactor 2. The fixed bed reactor 2 is 80cm long, 1 inch diameter, reaction temperature 125°C, 10% CsF supported by activated carbon as the catalyst, the catalyst filling ratio in the second fixed bed reactor is 75% (400mL), and the reaction pressure is 1.5bar. The main product of the reaction is (CF 3 ) 2 CFCOCF 3 The total yield of the reaction was 91.1%. The effluent of the second fixed bed reactor 2 is passed into ...

Embodiment 2

[0044] See figure 2 As shown, the first fixed bed reactor 1 is 80cm long, 1 inch diameter, and the reaction temperature is 250°C. 10% silver oxide supported on activated carbon is used as the catalyst. The catalyst filling ratio in the first fixed bed reactor is 50% (400mL). O 2 (100mL / min) and tetrafluoroethylene (100mL / min) enter the first fixed-bed reactor through the first preheating mixing pipeline to react, and the reaction pressure is 2bar. The effluent gas from the first fixed bed reactor 1 is mixed with 1.2 equivalent HFP (280 mL / min) and enters the second fixed bed reactor 2. The second fixed-bed reactor 2 is 80cm long, 1 inch pipe diameter, reaction temperature 125°C, activated carbon supported 10% CsF as catalyst, catalyst filling ratio in the reactor is 50% (250mL), reaction pressure is 1.2bar, reaction product Directly import concentrated ammonia water to obtain the precursor amide product aqueous solution, the reaction yield is 94.3%, the precursor amide product...

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Abstract

The invention discloses a production technology for an environment-friendly insulating gas and an industrial production device. The production technology comprises the following steps: 1) performing contact reaction on oxygen and symmetric perfluoroolefine under a catalyst condition or catalyst-free condition in a first fixed bed reactor; 2) mixing the gas product flowing from the first fixed bed reactor with gaseous olefin, and then entering into a second fixed bed reactor and performing contact reaction under the catalyst effect in the fixed bed reactor, thereby generating fluoroketone compounds or perfluorocarbon fluorocarbons; and 3) scrubbing the fluoroketone compounds, thereby acquiring a corresponding fluoroketone environment-friendly insulating gas; performing ammonolysis treatment on the perfluorocarbon fluorocarbons and then converting into a perfluorinated nitrile environment-friendly insulating gas under the effect of a dewatering agent or the catalyst in a third fixed bed reactor. The production technology disclosed by the invention is characterized by simple reaction condition, high atom economical efficiency, low cost and continuous and easy large-scale production.

Description

Technical field [0001] The invention belongs to the field of insulating gas preparation, and particularly relates to an environment-friendly insulating gas production process and industrial production device. Background technique [0002] In recent years, with the development of society and economy and the growth of the world's population, the extensive use of fossil fuels and human activities have caused the emission of various greenhouse gases to cause accelerated global warming, causing great ecological and environmental problems. The greenhouse effect of sulfur hexafluoride insulating gas widely used in the power industry is more than 20,000 times that of carbon dioxide. In order to avoid the use of such greenhouse gases, reduce the impact on the atmospheric environment, protect the natural environment on which humans depend, Gas puts forward higher requirements. Due to their good inertness, high electrical insulation, low degradation time and greenhouse effect in the atmosp...

Claims

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Application Information

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IPC IPC(8): C07C49/167C07C45/34C07C47/14C07C255/10C07C253/20
CPCC07C45/34C07C51/58C07C253/20C07C49/167C07C47/14C07C255/10C07C53/48C07C53/46
Inventor 孙强吴健陈殷丁德刘太洪白晓春郭安祥张燕涛吕平海鱼小兵
Owner STATE GRID CORP OF CHINA
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