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

Method for preparing 1,5-pentanediol via selective hydrogenolysis of tetrahydrofurfuryl alcohol

A technology of tetrahydrofurfuryl alcohol and selectivity, applied in the field of selective hydrogenolysis to prepare 1,5-pentanediol, which can solve the problems of high price of noble metal Rh and limited catalyst application

Active Publication Date: 2014-06-11
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high price of noble metal Rh, the industrial application of this catalyst is limited.

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
  • Method for preparing 1,5-pentanediol via selective hydrogenolysis of tetrahydrofurfuryl alcohol
  • Method for preparing 1,5-pentanediol via selective hydrogenolysis of tetrahydrofurfuryl alcohol
  • Method for preparing 1,5-pentanediol via selective hydrogenolysis of tetrahydrofurfuryl alcohol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-13

[0021] Preparation of Catalyst by Impregnation Method

[0022] Add 10% soluble salt solution containing A to the carrier for impregnation according to a certain metering ratio, age at room temperature for 12 hours, and then dry in an oven at 120°C for 12 hours; then weigh the components according to a certain B / A molar ratio The soluble salt solution of B is added to the above-mentioned carrier impregnated with component A, aged at room temperature for 12 hours, then dried at 120°C for 12 hours, and calcined in air at 500°C for 3 hours to obtain the supported type A-B / X catalyst. The composition of catalyst in each embodiment, the kind of starting material of component A, B is shown in Table 1.

[0023] Table 1. The composition of each catalyst

[0024]

[0025]

Embodiment 17

[0027] Catalyst activity evaluation

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 method for preparing a novel A-B / X or A / X carried catalyst of 1,5-pentanediol by performing a selective hydrogenolysis reaction on tetrahydrofurfuryl alcohol obtained from forestry and agricultural residues taken as raw materials. According to the novel A-B / X or A / X carried catalyst, wherein the component A is any one or more than one of Rh, Ir, Pt, Pd and Ru; the assistant B is any one or more than one of V, Nb and Ta; the carrier X is any one of SiO2, activated carbon, SiO2-Al2O3, titanium oxide and zirconium oxide; the carrying quantity of a precious metal A in the catalyst is between 0.5% and 10%; the molar ratio of the assistant B to the precious metal A is 0.01-1.0; the reaction pressure is between 1MPa and 20MPa; and the reaction temperature is between 50 DEG C and 150 DEG C. The novel A-B / X or A / X carried catalyst has the characteristics of moderate reaction condition, high reaction activity and good selectivity, thereby providing a novel effective way for preparing the 1,5-pentanediol by utilizing biomasses of the forestry and agricultural residues.

Description

technical field [0001] The invention relates to a new method for preparing 1,5-pentanediol through selective hydrogenolysis of tetrahydrofurfuryl alcohol obtained from agricultural and forestry wastes. Specifically, the A-B / X or A / X supported catalyst is used to realize the non-petroleum and renewable preparation route of 1,5-pentanediol from agricultural and forestry waste biomass under milder conditions. Background technique [0002] With the increasing shortage of fossil resources in the world and the increasing price of petroleum, it is imperative to develop synthetic routes of renewable energy chemicals with high economic added value and high energy utilization efficiency. Biomass is the only renewable carbon source, and the selective and efficient conversion of inedible agricultural and forestry waste biomass to energy chemicals has become a research hotspot. Taking advantage of the high oxygen content of biomass, it can be selectively converted into diols with hydrox...

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): C07C31/20C07C29/132
CPCC07C29/132C07C31/20
Inventor 张涛本拉特李宁王志强王爱琴王晓东
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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