Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A reactor and method for preparing propylene oxide using the reactor

A technology of propylene oxide and reactor, which is applied in the field of reactor and the preparation of propylene oxide by using the reactor, can solve the problems of transportation, storage and use danger, increase the difficulty of separation, etc., to improve utilization rate, reduce side reactions, enhance The effect of heat and mass transfer effects

Active Publication Date: 2017-03-15
HONGBAOLI GRP CO LTD +1
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses high-concentration hydrogen peroxide as an oxidant, which is dangerous for transportation, storage and use; co-solvent methanol needs to be added during the reaction process, which increases the difficulty of separation

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A reactor and method for preparing propylene oxide using the reactor
  • A reactor and method for preparing propylene oxide using the reactor
  • A reactor and method for preparing propylene oxide using the reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 shown and image 3 As shown, a reactor, the reactor is a fixed bed reactor, the middle part of the reactor is filled with an epoxidation catalyst, the top wall is provided with a gas outlet 1, the upper side wall is provided with a liquid outlet 2, and the lower side wall is provided with a 1 A group of injectors, each group of injectors includes 2 injectors 3, distributed on the same plane and symmetrical to each other; as figure 2 As shown, the injector 3 is composed of a nozzle 6 connected to the nozzle and the nozzle, the nozzle 6 is frusto-conical, and the diameter of the end of the nozzle connected to the nozzle is greater than the diameter of the end away from the nozzle. The nozzle 6 extends into the fixed bed reactor, and the nozzle is divided into two sections. The section 7 of the nozzle away from the nozzle is cylindrical, and the other section 8 is truncated conical. The diameter of the end of the nozzle away from the nozzle is larger tha...

Embodiment 2

[0038] Identical to the structure of Example 1, the difference is that the molecular formula of catalyst I is (TiO2) 0.08 (SiO2) 0.02 , the molecular formula of catalyst II is (TiO2) 0.04 (SiO2) 0.06 .

Embodiment 3

[0040] Identical to the structure of Example 1, the difference is that the lower side wall of the reactor is provided with 2 groups of injectors, such as Figure 4 As shown, each injector in the 2 sets of injectors is 90 degrees to each other.

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
Login to View More

PUM

No PUM Login to View More

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.

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/04C07D301/12C07D303/04
Inventor 邢益辉唐黎张益军黄东平范春元
Owner HONGBAOLI GRP CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com