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

Production method for producing 1,3-butadiene by performing oxidative dehydrogenation on butylene

A technology for oxidative dehydrogenation and production methods, which is applied in chemical instruments and methods, organic chemistry, hydrocarbons, etc., and can solve problems such as corrosion, reduction of effective utilization of raw materials, and environmental pollution.

Inactive Publication Date: 2012-03-28
天津东方宜信物流有限公司
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formation of these by-products not only reduces the effective utilization of raw materials, but also corrodes, blocks equipment, and pollutes the environment.

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
  • Production method for producing 1,3-butadiene by performing oxidative dehydrogenation on butylene
  • Production method for producing 1,3-butadiene by performing oxidative dehydrogenation on butylene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Butene is industrially adopted for oxidative dehydrogenation, wherein the catalyst used is bismuth molybdate process control suitable oxygen / ene ratio, and controls the oxygen content in the tail gas, and the residual oxygen in the reactant is at 0.5% (volume fraction), flow process See figure 1 .

Embodiment 2

[0020] With industrial butene, adopt oxidative dehydrogenation, wherein the catalyst used is ferrite; process control suitable oxygen / ene ratio, and control the oxygen content in the tail gas, the residual oxygen in the reactant is 0.45% (volume fraction), see process figure 1 .

Embodiment 3

[0022] With industrial butene, adopt oxidative dehydrogenation, wherein used catalyst is iron chromic acid; Process controls the suitable oxygen / ene ratio, and controls the oxygen content in the tail gas, residual oxygen is at 0.5% (volume fraction) in the reactant, see process figure 1 .

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

PropertyMeasurementUnit
melting pointaaaaaaaaaa
boiling pointaaaaaaaaaa
freezing pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a process flow for producing 1,3-butadiene by performing oxidative dehydrogenation on butylene. A major secondary reaction in the butylene oxidative dehydrogenation process is a deep oxidation reaction of butylene and 1,3-butadiene serving as a product thereof, and carbon monoxide, carbon dioxide and oxygen-containing compounds such as aldehyde, copper, acid and the like are mainly generated in the reaction. A catalyst industrially used in the oxidative dehydrogenation process of butylene consists of bismuth molybdate, multi-component molybdate, oxides of tin and antimony, tin and phosphorus and the like, and ferrite, ferric chromate and the like. In the process, an appropriate oxygen / butylene ratio is controlled, the oxygen content of tail gas is controlled, and the residual oxygen in a reactant is 0.3-0.5 percent (volume fraction). The production method is one of the best methods for preparing high-purity 1,3-butadiene.

Description

technical field [0001] The invention relates to an alkane chemical product, in particular to a production method for preparing 1,3-butadiene by oxidative dehydrogenation of butene, which is suitable for chemically synthesizing 1,3-butadiene. Background technique [0002] The internal rotation of the C-C single bond in the butadiene molecule is divided into cis and trans configurations. The trans configuration is stable for the molecule. The product is a colorless gas with a faint aromatic odor and is easily liquefied. Melting point -108.9°C, boiling point -4.41°C, relative density 0.6211 (20 / 4°C), freezing point -108.91°C, flash point <-6°C, refractive index 1.4292 (25°C), critical temperature 152°C, critical pressure 4326.58kPa, The critical density is 0.245g / cm3. Form explosive mixture with air, explosion limit 2%-11.5% (vol). Soluble in alcohol and ether, also soluble in acetone, benzene, dichloroethane, amyl acetate and furfural, cupric ammonia solution. not solu...

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): C07C11/167C07C5/48
Inventor 梁喜乐
Owner 天津东方宜信物流有限公司
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