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
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high price of noble metal Rh,...

Method used

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  • 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

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Experimental program
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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

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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

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Application Information

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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
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