Solid base supported Ru catalysts for sorbitol hydrogenolysis

ZHOU Jinghong; WANG Xuefeng; LIU Guocai; SUI Zhijun; ZHOU Xinggui; YUAN Weikang

doi:10.3969/j.issn.0438-1157.2014.07.037

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Solid base supported Ru catalysts for sorbitol hydrogenolysis

更新时间：2025-12-10

- Solid base supported Ru catalysts for sorbitol hydrogenolysis
- CIESC Journal Issue 7, Pages: 2761-2769(2014)
- 作者机构：
  
  华东理工大学化学工程联合国家重点实验室,上海,200237
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2014.07.037
  CLC： Q426.65
- Online First：05 July 2014，
  
  Published：05 July 2014
- 稿件说明：
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ZHOU Jinghong, WANG Xuefeng, LIU Guocai, et al. Solid base supported Ru catalysts for sorbitol hydrogenolysis[J]. CIESC Journal, 2014, (7): 2761-2769.
DOI：

ZHOU Jinghong, WANG Xuefeng, LIU Guocai, et al. Solid base supported Ru catalysts for sorbitol hydrogenolysis[J]. CIESC Journal, 2014, (7): 2761-2769. DOI： 10.3969/j.issn.0438-1157.2014.07.037.

摘要

采用羟基磷灰石和镁铝水滑石两种固体碱为载体制备了Ru催化剂，通过N2物理吸附、扫描电子显微镜、高分辨透射显微镜、X 射线衍射分析表征了形貌和物理化学性能，并与纳米碳纤维负载的Ru催化剂（Ru/CNFs）在无碱促进剂及有碱促进剂存在下催化山梨醇氢解制备二元醇的活性进行了比较。结果表明，固体碱负载的Ru催化剂，在无碱促进剂的条件下在山梨醇氢解中均表现出与Ru/CNFs相当的催化活性。其中镁铝水滑石负载的Ru催化剂在优化的制备条件下，其催化活性优于加入碱促进剂的Ru/CNFs催化体系，乙二醇和丙二醇等目标产物选择性更高，副产物减少，同时还免除了碱助剂的后续分离和回收，具有良好的应用前景。

Abstract

Hydrogenolysis of biomass-derived sorbitol into ethylene and propylene glycols

an alternative route for petroleum based process

usually takes place over metal catalyst with a base promoter. The presence of soluble bases introduces additional problems for their separation and recovery

increasing the complexity and operating cost of the process. Sometimes

these base additives result in the formation of more side-products. Ru supported on various solid bases to facilitate catalyst recovery and recycle was investigated. Ru catalysts supported on 2 solid bases

hydrotalcite (HT) and hydroxyapatite

were prepared and investigated for sorbitol hydrogenolysis activity in base-free aqueous solution

and their performance was compared with that of Ru catalyst supported on carbon nanofibers (Ru/CNFs)

with and without promotion by CaO. The physico-chemical properties of both supports and the supported Ru catalysts were characterized by SEM

N2 physisorption

XRD

TEM and CO2-TPD. The results indicate that Ru particles well disperse on the basic support and show as good activity as Ru/CNFs catalysts in sorbitol hydrogenolysis. The Ru catalyst using HT calcined at 500℃ as a support shows the best catalytic performance with promoted sorbitol conversion

higher selectivity to desired glycols and fewer byproducts. As a result

Ru/HT is believed to be a promising catalyst for sorbitol hydrogenolysis without added base. This is relevant to the development of a green process to produce glycols from biomass.

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