Mixed benzene hydrofining process

Abstract

The invention discloses a mixed benzene hydrofining process which is characterized in that a feeding pipe, a gas feeding pipe, a mixing tank and a heating furnace are included, and the refining steps are as follows: raw materials needing hydrofining are conveyed into the mixing tank through the feeding pipe to be temporarily stored, a coarse filtering structure is arranged in the feeding pipe to coarsely filter the raw materials, a hydrogenation reaction catalyst is fed into the mixing tank through the gas feeding pipe, the hydrogen and the raw material are mixed in the mixing tank, and the raw material mixed with the hydrogen is fed into the heating furnace through the pipeline so as to be subjected to heating and mixing treatment. The process has the beneficial effects that the catalytic reaction efficiency and quality of raw materials can be effectively improved through the catalyst with the pore diameter of 15-25 nm, the catalyst can have relatively high hydrogenation activity and relatively low cracking activity by using neutral aluminum oxide as a carrier, and the catalytic efficiency is further improved.

Description

Technical field: [0001] The invention belongs to the technical field of hydrogenation refining technology, in particular to a hydrogenation refining technology of mixed benzene. Background technique: [0002] Hydrofining is one of the important steps in the production of many products. By adding hydrogen catalyst to the product raw materials, many impurities contained in the product can be effectively discharged, thereby improving the quality of the product. [0003] For the hydrofining of products, due to the difference in raw material molecules, the requirements for catalysts will also change accordingly. Now the reaction efficiency of catalysts to raw materials for sheet production is low and the quality is poor. Invention content: [0004] The purpose of the present invention is to provide a mixed benzene hydrofinishing process in order to solve the above problems. Through three steps, it can effectively solve the above-mentioned hydrofinishing of products. Due to the ...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a mixed benzene hydrofinishing process in order to solve the above problems. Through three steps, it can effectively solve the above-mentioned hydrofinishing of products. Due to the different raw material molecules, the requirements for the catalyst It will also change accordingly, and now the catalyst has a low reaction efficiency for the production of sheet raw materials, which is a technical problem of poor quality