Reactor and method for preparing epoxypropane by reactor

A propylene oxide and reactor technology, which is applied in the field of reactors and the preparation of propylene oxide by using the reactor, can solve the problems of increasing separation difficulty, transportation, storage and use danger, etc., and achieves reduction of side reactions, improvement of utilization rate, reduction of Effect of feed amount
CN104907009AActive Publication Date: 2015-09-16HONGBAOLI GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
HONGBAOLI GRP CO LTD
Publication Date
2015-09-16

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Abstract

The invention discloses a reactor. The middle of the reactor is filled with an epoxidation catalyst, the top wall of the reactor is provided with a gas outlet, the upper side wall of the reactor is provided with a liquid outlet, the lower side wall of the reactor is provided with one or two groups of injectors, each group of the injectors comprises two injectors symmetrically distributed on the same plane, the injector comprises a jet pipe and a nozzle connected to the jet pipe, the nozzle is frustoconical, the diameter of one end of the nozzle connected to the jet pipe is greater than that of the other end, the nozzle stretches into a fixed bed reactor, the jet pipe comprises two sections, the section of the jet pipe far away from the nozzle is cylindrical, the other section is frustoconical, and the diameter of one end of the jet pipe far away from the nozzle is greater than the diameter of one end of the jet pipe connected to the nozzle. The invention discloses a method for preparing epoxypropane by the reactor and a reaction system composed of the reactors connected in series. The reactor realizes reactant high-speed clashing mixing, improves reactant mixing effects, improves heat and mass transfer effects and improves a cumene hydroperoxide conversion rate and epoxypropane selectivity.
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Description

technical field

[0001] The invention provides a reactor for preparing propylene oxide and a method for preparing propylene oxide using the reactor. Background technique

[0002] Propylene oxide (propylene oxide), as an important basic organic chemical raw material, is mainly used in the industry to prepare polyether polyols, propylene glycol, alcohol amines and various nonionic surfactants, and its derivatives are widely used in petrochemical , construction, home appliances, automobiles, medicine, pesticides, textiles, daily chemicals and other industries. However, traditional propylene oxide production processes such as chlorohydrin method or co-oxidation method have disadvantages such as heavy pollution, high corrosion, many co-products, and high cost. Therefore, countries are actively developing green propylene oxide production technology with simple process, clean economy.

[0003] Japan's Sumitomo Chemical Company developed the cumene hydroperoxide method (hereinafter...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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