Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Epoxide preparation device and epoxide preparation method

A technology for epoxide and preparation equipment, which is applied in chemical instruments and methods, chemical/physical processes, organic chemistry, etc., and can solve problems such as increased investment costs, large heat release, and catalyst blockage

Pending Publication Date: 2022-07-08
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The traditional reactor for preparing ethylene oxide is generally a large-scale tubular fixed-bed catalytic reactor, in which the diameter of the tubular tube is small, about 21mm-38.9mm, and the top of the fixed-bed catalytic reactor is provided with an inlet , the bottom of the fixed-bed catalytic reactor is provided with an outlet, and due to the large heat release during the epoxidation reaction, there is an obvious temperature gradient in the tubes. In order to control the bed temperature, the diameter of the tubes will be reduced as much as possible, but the reduction diameter, it is easy to cause the blockage of the catalyst, and the pressure drop of the bed layer is large, thus increasing the investment cost

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
  • Epoxide preparation device and epoxide preparation method
  • Epoxide preparation device and epoxide preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0035] The present invention provides an epoxy preparation device. The epoxy preparation device 10 includes a main body 12. The main body 12 is in the shape of a polygonal ring. It can be understood that the main body 12 has an inner peripheral wall and an outer peripheral wall. The inner peripheral wall of the main body 12 The main body 12 includes at least one reaction wall 12a, the reaction wall 12a has a reaction chamber capable of filling the catalyst, and the outer wall surface of the reaction wall 12a facing away from the main body 12 is provided with an inlet for the feed gas to enter the reaction chamber. The material port, the inner wall surface of the reaction wall 12a facing the main body 12 is provided with a discharge port for discharging the epoxide obtained by the reaction of the raw material gas under the action of the catalyst. It can be understood that the reaction wall 12a has a certain thickness, The reaction chamber can be arranged in the reaction wall 12a...

Embodiment 1

[0061] use figure 1 The shown preparation device for epoxide prepares ethylene oxide, wherein the main body 12 is in the shape of a cuboid, and the main body 12 includes 2 reaction walls 12a and 2 connecting walls 12b, and the 2 reaction walls 12a and 2 connecting walls 12b are along the The circumferential direction of the main body 12 is alternately distributed. The outer wall surface of the reaction wall 12a is in the shape of a grid, wherein a plurality of first mesh holes are distributed in a matrix, the first mesh holes are formed as feed ports, and the total area of ​​the plurality of first mesh holes is the total area of ​​the outer wall surface. 40%; the inner wall surface of the reaction wall 12a is in a grid shape, wherein the plurality of second mesh holes are distributed in a matrix, the second mesh holes are formed as discharge ports, and the total area of ​​the plurality of second mesh holes is the inner wall surface. 40% of the total area; the reaction chamber...

Embodiment 2

[0065] The epoxide preparation device provided by the present invention is used to prepare ethylene oxide, wherein the main body 12 is in the shape of a cuboid, and the main body 12 includes two reaction walls 12a and two connecting walls 12b, and two reaction walls 12a and two connecting walls The walls 12b are alternately distributed along the circumference of the main body 12 . The outer wall surface of the reaction wall 12a is provided with a plurality of first openings, wherein the first openings extend in a direction perpendicular to the height direction of the reaction wall 12a, the plurality of first openings are spaced along the height direction of the main body 12, and the first openings form For the feed port, the total area of ​​the first openings is 30% of the total area of ​​the outer wall surface; the inner wall surface of the reaction wall 12a is provided with a plurality of second openings, wherein the second openings are perpendicular to the height of the reac...

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 relates to the technical field of chemical reactors, and discloses an epoxide preparation device and an epoxide preparation method.The epoxide preparation device comprises a polygonal annular main body, the main body comprises at least one reaction wall, the reaction wall is provided with a reaction cavity capable of being filled with a catalyst, and the reaction cavity is communicated with the reaction cavity. The outer wall surface, deviating from the interior of the main body, of the reaction wall is provided with a feed port through which raw material gas enters the reaction chamber, and the inner wall surface, facing the interior of the main body, of the reaction wall is provided with a discharge port through which epoxide obtained through reaction of the raw material gas under the action of the catalyst is discharged; and a discharge port communicated with the discharge port is defined by the inner peripheral wall of the main body. The raw material gas can flow and react in the direction perpendicular to the height direction of the catalyst bed layer, and the temperature gradient in the height direction of the reaction chamber is small, so that the temperature in the whole reaction process is easy to control, and the side reaction is less.

Description

technical field [0001] The invention relates to the technical field of chemical reactors, in particular to an epoxide preparation device and an epoxide preparation method. Background technique [0002] 1,2-Epoxy compounds, abbreviated as epoxides, are a class of compounds with a three-membered ring ether structure, of which the simplest compound is ethylene oxide. Due to the tension of the ring, epoxy compounds are much more active than ordinary ethers and can undergo ring-opening reactions with various reagents. [0003] Taking ethylene oxide as an example, ethylene oxide is an important organic chemical product in ethylene industrial derivatives, and is widely used in chemical industry, military, medical sterilization, etc. At present, the preparation method of ethylene oxide mainly adopts the direct oxidation of ethylene with silver as a catalyst. Under the catalyst of silver, the epoxidation of ethylene and oxygen to ethylene oxide will be accompanied by a side reactio...

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 Applications(China)
IPC IPC(8): B01J8/02B01J8/04C07D301/10C07D303/04
CPCB01J8/0207B01J8/0278B01J8/0285B01J8/0403B01J8/0492B01J8/0496C07D301/10C07D303/04B01J2208/00194Y02P20/584
Inventor 钱亚男杨哲张帆贾学五刘静如王振刚徐伟
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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