Continuous hydrogenation reaction device

Abstract

The invention relates to a continuous hydrogenation reaction device. A nitrogen gas source outlet of the device is connected with a feeding hole of a multi-phase reactor; the feeding hole is connected with a feeding hole of a heat exchanger; a discharge port of the heat exchanger is connected with another feeding hole of the multi-phase reactor; a vacuum pump gas source is divided into three paths which are respectively connected with two feeding holes and a discharge port of the multi-phase reactor; a hydrogen gas source is connected with a gas inlet of a high-pressure buffer tank; a gas outlet of the high-pressure buffer tank is connected with the feeding holes of the multi-phase reactor; a gas outlet of a cyclone separator is connected with another gas inlet of the high-pressure buffer tank; the discharge port of the multi-phase reactor is connected with a feed port of the cyclone separator; a gas inlet of an oxygen molecule detector and a gas inlet of a hydrogen molecule detector respectively communicate with the discharge hole of the multi-phase reactor. The device has the advantages of accurate control of reaction control endpoint, high quality, high purity, few impurities and high production efficiency; raw material hydrogen consumption is low, catalyst recovery rate is high, and energy consumption is low; operation is stable, and production is safe; and the ground area is small, and human intervention is not needed.

Description

technical field [0001] The invention relates to a hydrogenation reaction device used in the field of organic chemical synthesis, in particular to a hydrogenation reaction device capable of continuous cycle synthesis. Background technique [0002] In the prior art, the hydrogenation reaction method is usually carried out in a tank reactor or a fluidized bed reactor, and the reaction device consists of a stirred reactor, a distillation column, a vertical condenser, a horizontal condenser, a sight cup, a receiving Tanks and other parts. In the hydrogenation reaction method of this traditional process, the catalyst is easily broken under strong stirring in the reactor, and the catalyst has poor anti-toxicity and stability, and is difficult to separate from the product. Other forms of modified nickel catalysts, such as catalysts containing cobalt, chromium and nickel or amorphous nickel alloy catalysts, have improved stability, but still have the problems of difficult separation...

AI Technical Summary

Problems solved by technology

It avoids the easy breakage of the catalyst brought by the traditional reactor-type hydrogenation reaction device, and has poor anti-toxicity and stability, and it is difficult to separate the product. The efficiency of the reactor is low, the amount of catalyst is large, and the subsequent separation process is complicated and cumbersome. , inconvenient operation, etc.

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