Continuous hydrogenation reduction reaction system

Abstract

The invention discloses a continuous hydrogenation reduction reaction system, which comprises a hydrogen circulation device, a reaction device and a gas-liquid separation device, wherein the hydrogencirculation device, the reaction device and the gas-liquid separation device are sequentially connected through a pipeline, one side of the hydrogen circulation device is connected to the reaction device through a pipeline, and the other side of the hydrogen circulation device is connected to the gas-liquid separation device through a pipeline. According to the present invention, with the continuous hydrogenation reduction reaction system, the hydrogen recovery and use problem is successfully solved by recycling hydrogen so as to effectively save the energy and reduce the environment pollution, and the supported catalyst is added into the reactor so as to eliminate the catalyst separation device and the catalyst separation step, such that the production period is shortened, the productionefficiency is improved, and the application prospect is broad.

Description

technical field [0001] The invention relates to the field of chemical equipment, in particular to a continuous hydrogenation reduction reaction system. Background technique [0002] At present, the industrial production of hydrogenation reduction reaction mainly uses an autoclave as the reaction vessel. The reaction process is to add the gas-solid-liquid into a reactor, and stir vigorously to fully mix the gas-solid-liquid. However, this high-pressure reactor has many disadvantages: 1. Gas-solid-liquid three-phase reaction must leave enough space for the gas, which leads to a larger reactor, which will make its sealing more difficult. Reduced safety, especially at high pressures. 2. The separation of the catalyst must use other equipment. 3. Excess gas can only be discharged directly into the atmosphere, causing pollution and waste of resources. 4. Because the gas-solid-liquid fully mixed in the reaction process cannot achieve a good result, resulting in a longer reaction...

AI Technical Summary

Problems solved by technology

However, this high-pressure reactor has many disadvantages: 1. Gas-solid-liquid three-phase reaction must leave enough space for the gas, which leads to a larger reactor, which will make its sealing more difficult. Reduced safety, especially at high pressure

2. Catalyst separation must use other equipment

3. Excess gas can only be discharged directly into the atmosphere, causing pollution and waste of resources

4. Because it is impossible to achieve a good mixture of gas, solid and liquid during the reaction process, the reaction cycle is lengthened

5. The reactor occupies a large area

[0003] At present, the tubular reactor is mainly based on gas-solid reaction. The raw material is gasified at high temperature and passed through the solid-supported catalyst. However, the tubular reactor for gas-solid reaction is only suitable for raw materials with low boiling point and will not decompose at high temperature. range of its use

[0004] The existing gas-solid-liquid three-phase tubular reactor does not solve the problem of solid loading of catalyst and recovery and use of hydrogen, and there is no precedent for successful industrialization

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