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

Propylene production method

A production method and technology of propylene, which is applied in the field of propylene production, can solve problems such as consumption of ethylene, and achieve the effects of improving utilization rate, good technical effect, and improving economic benefit

Active Publication Date: 2013-12-04
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 1 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 problem of ethylene consumption existing in the prior art, and a new propylene production method 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
  • Propylene production method
  • Propylene production method
  • Propylene production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] according to figure 1 In the process flow shown, the extractant is a mixed solvent of nitrogen-formylmorpholine and methyl ethyl ketone, and the weight ratio is 1:1; the disproportionation catalyst in the disproportionation reactor is 8% WO 3 / SiO 2 , the operating conditions are: reaction temperature 300°C, reaction pressure 3MPa in absolute pressure, mass space velocity of C4 2h -1 . The operating conditions of the extraction process are shown in Table 1, the operating conditions of the deethylene tower and the depropylene tower are shown in Table 2, and the reaction results are shown in Table 3.

[0022]

Embodiment 2～6

[0024] React by each condition and step of embodiment 1, just change different operating parameters, the operating conditions of extraction process are as shown in table 1, the operating conditions of deethylene tower and depropylene tower are as shown in table 2, its reaction conditions and The reaction results are listed in Table 3.

[0025]

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 present invention relates to a propylene production method, wherein the problem of ethylene consumption in the prior art is mainly solved with the present invention. The technical scheme comprises that: a material containing 1-butene, 2-butene, isobutane and n-butane is adopted as a C4 raw material, the C4 raw material is respectively subjected to an extraction separation process to obtain a butene stream containing 1-butene and 2-butene, and the butene stream passes through a disproportionation reactor, an ethylene removing tower and a propylene removing tower to obtain the product propylene. The propylene production method can be used for industrial production of preparation of propylene from C4.

Description

technical field [0001] The present invention relates to a production method of propylene. Background technique [0002] The traditional methods of ethylene co-production and refinery recovery of propylene are obviously difficult to meet the growing demand for propylene. The use of olefin disproportionation technology can digest C without reducing the cracking severity of naphtha. 4 Distillate, and can increase the production of propylene, so the research and development of olefin disproportionation to propylene technology is not only to improve the production of propylene, but also to promote low value-added C 4 The comprehensive utilization of distillates is of great significance, among which the disproportionation of butene involved in the present invention to produce propylene is a promising process. [0003] Olefin disproportionation reaction, also known as olefin double bond replacement reaction, is an olefin conversion phenomenon discovered in the 1960s. Abundant ole...

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): C07C11/06C07C6/04
Inventor 宣东刘苏董静
Owner CHINA PETROLEUM & CHEM CORP
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