Multiple molecule contacting catalytic reaction apparatus and method

Abstract

The present invention relates to multiple molecules contacting catalysis reaction, and provides multiple molecules contacting catalysis reaction apparatus and method with inhibition on catalyst poisoning and high reaction rate. The apparatus is provided with a reaction container, a catalyst bed in the middle inside the container, and at least one material duct, which is set vertically inside the container with the bottom on the catalyst bed. The material duct has holes in the end near to the catalyst bed. During reaction, the catalyst bed is filled with catalyst, the material duct has the holes located inside the catalyst bed, the material is divided into two parts including one part flowing out through the outlet continuously and the other part flowing into the catalyst bed through the duct, and the reaction conditions are set properly.

Description

technical field [0001] The invention relates to a multi-molecule contact catalytic reaction device and a reaction method. Background technique [0002] "Multimolecular" means that there are at least two types of molecules converted in a chemical reaction, and "contact catalysis" means that at least one converted molecule is in contact with a catalyst and is split into atoms (including ions, the same below) ) or atomic groups, which are then contacted with other molecules or the atoms or atomic groups formed by their cleavage to generate new types of molecules. As we all know, multimolecular contact catalysis in a reactor with continuous flow of reaction materials is generally carried out in the following manner: firstly, the materials composed of all reaction molecules are mixed uniformly and then flow from the reactor inlet to the reactor outlet through the catalyst bed, and the mixture is required The flow of the material in the catalyst bed tends to plug flow (also known...

AI Technical Summary

Problems solved by technology

However, no matter what kind of material traverses the entire catalyst bed, if a certain material contains poisons that can poison the catalyst, the catalyst in the entire bed will be poisoned, which will greatly reduce the reaction activity.

For example, metal nickel catalysts have high activity for the hydrogenation reaction of aromatic hydrocarbons, but when the aromatic hydrocarbon material contains traces of organic sulfur such as thiophene, the catalyst will be poisoned and the reaction activity will decrease

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