Horizontal moving bed reactor for preparing propylene with oxygen-containing compound as raw material

Abstract

The invention discloses a horizontal reactor of moving bed type, which produces propylene with oxygenated chemicals as raw material. The reactor includes a shell. One transverse end of the shell is provided with a raw material inlet and the other end is provided with a production outlet. A polyporous separator is arranged in the shell, which separates the internal space of the shell into at leastfour horizontal areas. The two areas at the end part of the shell are respectively communicated with the raw material inlet and the production outlet. The rest areas are one reaction area and a cooling area with an interval arranged in the middle. The shell corresponding to the upper end and the lower end of the reaction area is respectively provided with a catalyst inlet and a catalyst outlet. The shell corresponding to the cooling area is provided with a cooling liquid inlet. The horizontal reactor of moving bed type of the invention has simple structure, easy equipment design and manufacture, easy maintenance and convenient operation. The reaction can be controlled easily and the reaction condition can be kept well.

Description

technical field [0001] The invention relates to a propylene production equipment, in particular to a horizontal moving bed reactor for producing propylene with oxygen-containing compounds as raw materials. Background technique [0002] Oxygenated propylene technology is a process for producing propylene from non-petroleum resources, which has great application prospects. According to numerous published literature reports, the production of propylene from oxygen-containing compounds is a strongly exothermic reaction type, and the selectivity of the target product propylene is relatively sensitive to temperature. [0003] Among the relatively mature technologies for producing propylene from oxygenates in the world, the MTO process jointly developed by UOP / Hydro uses a fluidized bed reactor, which has better heat transfer effect and is easier to control the reaction temperature. Therefore, the requirements for the wear resistance of the catalyst are relatively high; Lurgi’s MT...

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Problems solved by technology

[0009] The invention provides a horizontal moving bed reactor for producing propylene with oxygen-containing compounds as raw materials. The reactor has a simple structure and can solve the problem that the selectivity of propylene is reduced due to the increase of the temperature of the raw material due to the exothermic reaction.

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