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Ni/La2O2CO3催化剂对山梨醇氢解产物的选择性调控
Alternative TitleSelective hydrogenolysis of sorbitol on Ni/La202CO3 catalysts
张涛1,2; 刘琪英1; 张彩红2,3; 张琦1; 马隆龙1
2017-06
Source Publication化工学报
ISSN0438-1157
Volume68Issue:6Pages:2359-2367
Abstract采用共沉淀法制各了具有协同稳定作用的Ni/La2O2CO3催化剂,用于山梨醇选择性氢解为小分子醇的研究。采用X射线衍射、氢气程序升温还原、C02程序升温脱附和扫描电镜对催化剂进行了表征。考察了不同配比Ni、La的加氢位点和碱性调控对山梨醇氢解产物的影响。结果表明,Ni、La摩尔比为2:3时,山梨醇转化率达到98.6%,C2~c3多元醇的产率达到43.8%,催化剂经2次反应后对山梨醇的转化率仍高达90%。探究了催化剂从酸性到碱性调变过程中,山梨醇氢解的产物分布,并提出了反应路径。
Other AbstractNi/La2O2CO3 catalysts with different Ni/La ratios were prepared by co-precipitation and the performance was tested in selective hydrogenolysis of sorbitol to C2--C3 polyols. The catalysts were characterized by X-ray diffraction(XRD), H2 temperature-programmed reduction(H2-TPR), CO2 temperature-programmed desorption(CO2-TPD) and scanning electron microscopy (SEM). The effect of hydrogenation and base regulation was investigated by varying the Ni / La ratios. The result shows that the conversion of sorbitol was 98.6% and the yields of C2-C3 polyols was 43.8% when the mole ratio of Ni to La is 2:3. After two times of reaction, the catalyst still achieved a sorbitol conversion of 90%. From acidic to alkaline, the products distribution of hydrogenolysis of sorbitol was discussed. The reaction pathway was also proposed based on the experiment results.
Keyword山梨醇 选择性催化还原 纳米材料 加氢 共沉淀 C2~C3多元醇 sorbitol SCR nanomaterials hydrothermal co-precipitation C2--C3 polyols
DOI10.11949/j.issn.0438-1157.20170043
Language中文
CSCD IDCSCD:5994221
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Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16526
Collection中国科学院广州能源研究所
Corresponding Author刘琪英
Affiliation1.中国科学院广州能源研究所,可再生能源与天然气水合物重点实验室,广东广州510640;
2.中国科学技术大学纳米科学技术学院,江苏苏州215123;
3.中国科学院大学,北京100049
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
张涛,刘琪英,张彩红,等. Ni/La2O2CO3催化剂对山梨醇氢解产物的选择性调控[J]. 化工学报,2017,68(6):2359-2367.
APA 张涛,刘琪英,张彩红,张琦,&马隆龙.(2017).Ni/La2O2CO3催化剂对山梨醇氢解产物的选择性调控.化工学报,68(6),2359-2367.
MLA 张涛,et al."Ni/La2O2CO3催化剂对山梨醇氢解产物的选择性调控".化工学报 68.6(2017):2359-2367.
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