Catalyst used for fixed bed ethyne hydrochlorination reactions and using method

A technology for acetylene hydrochlorination and catalysts, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc., can solve harsh conditions, many synthesis steps, and difficult industrial applications And other issues

Active Publication Date: 2018-06-01
NANKAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A research group studies the hydrochlorination of acetylene catalyzed by MOFs. This material has the characteristics of regular pore structure and good thermal stability. However, there are many synthesis steps and harsh conditions, making it difficult for industrial application.

Method used

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  • Catalyst used for fixed bed ethyne hydrochlorination reactions and using method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1) Dry 10 g of D380 at 100 °C for 4 hours to obtain dried D380;

[0031] 2) Dissolve 1 g of copper chloride in 19 g of deionized water with stirring at 30 °C to obtain an impregnating solution with a mass fraction of 5%, and then impregnate the impregnating solution on 5 g of dry D380 by incipient wetness impregnation method, seal the static After 6 hours, the sample was completely dried at 60°C to obtain a precursor;

[0032] 3) In the flow of N 2 Under gas, 5 g of the precursor was heated to 200 °C at a heating rate of 5 °C / min in a tube furnace for 1 hour, then raised to 500 °C at a heating rate of 1 °C / min and maintained for 3 hours, and then dropped to At room temperature, the catalyst Resin-C-1, N 2 The gas volumetric space velocity is 180 h -1 .

Embodiment 2

[0034] 1) Dry 10 g of D382 at 105 °C for 4 hours to obtain dried D382;

[0035] 2) Dissolve 6 g of copper chloride in 14 g of deionized water with stirring at 50 °C to obtain an impregnating solution with a mass fraction of 30%, and then use the incipient wetness impregnation method to impregnate the impregnating solution on 5 g of dry D382, seal the static After 6 hours, the sample was completely dried at 85°C to obtain a precursor;

[0036] 3) Under the flowing He gas, the temperature of 5 g precursor was raised to 250 °C at a heating rate of 10 °C / min in a tube furnace for 1 hour, and then the temperature was raised to 900 °C at a heating rate of 3 °C / min and maintained 3 hours, then down to room temperature to obtain catalyst Resin-C-2, He gas volume space velocity is 300 h -1 .

Embodiment 3

[0038] 1) Dry 10 g of D392 at 100–105 °C for 4 hours to obtain dried D392;

[0039]2) Dissolve 1 g of thiourea in 19 g of deionized water with stirring at 30 °C to obtain an impregnation solution with a mass fraction of 5%, and then use the incipient wetness impregnation method to impregnate the impregnation solution on 5 g of dry D392, and seal it statically. After 6 hours, the sample was completely dried at 60°C to obtain a precursor;

[0040] 3) Under flowing Ar gas, 5 g of the precursor was heated to 200 °C at a heating rate of 5 °C / min in a tube furnace for 1 hour, and then raised to 500 °C at a heating rate of 1 °C / min and maintained After 3 hours, down to room temperature, the catalyst Resin-C-3 is obtained, and the volume space velocity of Ar gas is 180 h -1 .

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Abstract

The invention provides a catalyst used for fixed bed ethyne hydrochlorination reactions and a using method. According to the catalyst, industrial nitrogen-containing resin is used for soaking copper chloride or nitrogen-containing species by a primary wet impregnation method, and then specific temperature programmed calcinations are used for carrying out carbonization treatment under inert gases,and thus the catalyst is obtained. The catalyst has the characteristic that the nitrogen-containing resin is taken as a nitrogen-containing carbon source which is rich in pore structures, and the content of active centers is greatly improved by soaking copper chloride or nitrogen-containing species by the primary wet impregnation method. According to the method, compared with other preparation technologies, the preparation of active carbon and nitrogen doping are completed at one step, the synthetic procedure is simplified, and the energy sources consumed by high-temperature calcination are saved. The invention discloses the novel catalyst and a preparation technology thereof, the catalyst is applied into the fixed bed ethyne hydrochlorination reactions, and the catalyst has certain catalytic activity.

Description

technical field [0001] The invention provides a catalyst for fixed-bed acetylene hydrochlorination and its use method, belonging to the technical field of material synthesis. The catalyst uses industrial nitrogen-containing resin as a carbon source, is modified by impregnating copper chloride or nitrogen-containing species by an incipient wetness impregnation method, and then undergoes carbonization treatment by specific temperature-programmed roasting under an inert gas to obtain the catalyst. The catalyst is applied to fixed-bed acetylene hydrochlorination reaction and has certain activity. Background technique [0002] Polyvinyl chloride is the most widely used plastic in recent years. This kind of plastic can be made into various products and used in human clothing, food, housing and transportation. Due to China's special energy structure of "poor oil, little gas, and rich coal", vinyl chloride, the monomer used in polyvinyl chloride, is usually synthesized using acetyl...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J27/24B01J37/02B01J37/08C07C17/08C07C21/06
CPCB01J23/72B01J27/24B01J37/0207B01J37/084B01J37/088C07C17/08C07C21/06
Inventor 李伟薛屹楠关庆鑫
Owner NANKAI UNIV
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