Supercharge Your Innovation With Domain-Expert AI Agents!

Reaction device for producing light olefins from oxygenated compounds

A low-carbon olefin and reaction device technology, which is applied to the production of hydrocarbons from oxygen-containing organic compounds, ethylene production, condensation between hydrocarbons and non-hydrocarbons, etc., can solve the problem of low yield of low-carbon olefins

Active Publication Date: 2011-12-14
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is the low yield of low-carbon olefins in the prior art, and a new reaction device for producing low-carbon olefins from oxygen-containing compounds is provided

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
  • Reaction device for producing light olefins from oxygenated compounds
  • Reaction device for producing light olefins from oxygenated compounds

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] in such as figure 1 In the reaction device shown, the catalyst is SAPO-34, the main reactor and the auxiliary reactor are fluidized beds, the main reactor is fed with methanol with a purity of 99.5%, and the feed temperature is 210 ° C, and the distribution plate is set to enter the reaction Zone, the reaction conditions of the main reactor are: the reaction temperature is 450°C, the reaction pressure is 0.01MPa in terms of gauge pressure, and the gas phase velocity in the reactor is 0.7 m / s; the auxiliary reactor is fed with pure ethanol, and the feed is liquid Phase nozzle feeding mode, reaction conditions in the auxiliary reactor: the mass ratio of ethanol feed to methanol feed is 0.2, the reaction temperature is 350° C., and the gas phase linear velocity is 0.5 m / s. The carbon deposition amount of the carbon deposition catalyst is 2.5%, and the carbon deposition amount of the raw catalyst is 2.97%. The outlet of the main reactor adopts gas chromatography to analyze ...

Embodiment 2

[0022] According to the conditions described in Example 1, the main reactor adopts methanol feed with a purity of 99.5%, and the feed temperature is 180°C. The reaction conditions of the main reactor are: the reaction temperature is 400°C, and the reaction pressure is 0.1 in gauge pressure. MPa, the linear velocity of the gas phase in the reactor is 0.67 m / s; the auxiliary reactor adopts the mixed feed of ethanol and methanol, and the feed adopts the liquid phase nozzle feeding mode, and the mass ratio of ethanol and methanol feed in the auxiliary reactor feed is 5.2. The mass ratio of ethanol to methanol in the total feed is 0.6, and the reaction conditions in the auxiliary reactor are: the reaction temperature is 420°C, and the gas phase velocity is 0.8 m / s. The carbon deposition amount of the carbon-deposited catalyst is 3.17%, and the carbon deposition amount of the waiting catalyst is 3.51%. The experimental results are: the methanol conversion rate is 98.31% (weight), the...

Embodiment 3

[0024] According to the conditions described in Example 1, the main reactor adopts methanol feed with a purity of 99.5%, and the feed temperature is 300°C. The reaction conditions of the main reactor are: the reaction temperature is 500°C, and the reaction pressure is 0.3 in gauge pressure. MPa, the gas phase linear velocity in the reactor is 0.5 m / s; the reaction conditions in the auxiliary reactor: the mass ratio of ethanol feed to methanol feed is 0.1, the reaction temperature is 300 ° C, and the gas phase linear velocity is 0.3 m / s. The carbon deposition amount of the carbon deposition catalyst is 4.98%, and the carbon deposition amount of the waiting catalyst is 5.94%. The experimental results are: the methanol conversion rate is 99.76% (weight), the ethanol conversion rate is 100% (weight), and the ethylene yield is 15.23%. (weight), the propylene yield was 15.61% (weight).

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 a reaction device for preparing a light olefin from an oxygen-containing compound. The reaction device mainly solves a problem that a yield of a light olefin is low during production of the light olefin. The reaction device for preparing a light olefin from an oxygen-containing compound mainly comprises a main reactor 4, an auxiliary reactor 3, a catalystrunner pipe 12, a heat exchange pipe 5 and a gas-solidcyclone separator 8. The upper part of the main reactor 4 is connected to a settling section 9. The lower part of the main reactor 4 is connected to the auxiliary reactor 3. The gas-solidcyclone separator 8 is arranged in the settling section 9. The top of the settling section 9 is provided with a product gas outlet 10. The catalystrunner pipe 12 is arranged in a connection part of the main reactor 4 and the auxiliary reactor 3. The heat exchange pipe is arranged in the auxiliary reactor 3. The lower part of the auxiliary reactor 3 is provided with a catalyst outlet. The catalyst outlet is connected with a regenerator through a waitinginclined pipe 7. The lower part of the main reactor 4 is provided with a catalyst inlet. The catalyst inlet is connected with the regenerator through a waitinginclined pipe 11. Through the technical schemeof the reaction device, the problem is solved well. The reaction device for preparing a light olefin from an oxygen-containing compound can be utilized for industrial production of light olefins.

Description

technical field [0001] The invention relates to a reaction device for producing light olefins from oxygen-containing compounds. technical background [0002] Low-carbon olefins, namely ethylene and propylene, are two important basic chemical raw materials, and their demand is increasing. Generally, ethylene and propylene are produced through petroleum routes, but due to the limited supply and high price of petroleum resources, the cost of producing ethylene and propylene from petroleum resources continues to increase. In recent years, people have begun to vigorously develop the technology of converting alternative raw materials into ethylene and propylene. Among them, an important class of alternative raw materials for the production of low-carbon olefins is oxygenated compounds, such as alcohols (methanol, ethanol), ethers (dimethyl ether, methyl ethyl ether), esters (dimethyl carbonate, methyl formate Esters), etc., these oxygenated compounds can be converted from coal, ...

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
IPC IPC(8): C07C1/20C07C1/24C07C11/06C07C11/04C07C2/86
CPCY02P30/20Y02P30/40
Inventor 齐国祯钟思青王洪涛金永明
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com