Alternative TitleCatalytic performance of Fe-modified Ru/Al2O3 in the hydrogenation of dimethyl maleate
王磊; 努尔买买提·阿布都克力木; 马昱博; 庆绍军; 高志贤; 吾满江·艾力
Source Publication燃料化学学报

以Al_2O_3为载体,采用吸附-沉淀法制备一系列Ru-Fe/Al_2O_3催化剂,并进行了H_2-TPR、XRD及XPS表征。以马来酸二甲酯( DMM)催化加氢合成丁二酸二甲酯(DMS)为探针反应,考察了Fe的加入对Ru/Al_2O_3催化性能的影响。评价结果表明,当Fe/Ru原子比小于 2时,催化剂活性变化不大;但Fe/Ru原子比大于或等于2时,催化剂活性明显增加;与Ru / Al_2O_3催化剂相比,Fe的加入改善了催化剂的高温氧化还原处理稳定性。以甲醇为溶剂,在70℃、1.0MPa压力、600r/min转速下,Ru -Fe/Al_2O_3催化DMM的转化率与生成DMS的选择性均接近100%。XPS和H_2-TPR表征结果表明,Ru-Fe/Al_2O_3中Fe 与Ru产生较强的相互作用,促进Ru的分散且调变了Ru的电子特性。

Other Abstract

Fe-modified Ru/Al2O3 (Ru-Fe/Al2O3) catalysts were prepared by adsorption-precipitation (AP) method with alumina as the support and characterized by H2-TPR, XRD and XPS; the effect of Fe modification on the catalytic performance of Ru-Fe/Al2O3 was investigated in the selective hydrogenation of dimethyl meleate (DMM) to dimethyl succinate (DMS). The results indicated that through the modification with a Fe/Ru atomic ratio above 2, the catalytic performance of Ru-Fe/Al2O3 and its stability towards high temperature oxidation-reduction treatment is obviously enhanced. Under 70, 1.0 MPa and with a stirring speed of 600 r/min, the conversion of DMM and the selectivity to DMS were both nearly 100%. The XPS and H2-TPR results suggest that the promoting effect of Fe on Ru-Fe/Al2O3 may be ascribed to an increase of Ru dispersion as well as a change in Ru electronic state through the modification with Fe.

Keyword马来酸二甲酯 催化加氢 丁二酸二甲酯 铁改性
Indexed ByEI ; CSCD
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Cited Times:2[CSCD]   [CSCD Record]
Document Type期刊论文
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王磊,努尔买买提·阿布都克力木,马昱博,等. Fe改性对Ru/Al_2O_3催化剂的马来酸二甲酯加氢性能影响[J]. 燃料化学学报,2014,42(7):839-844.
APA 王磊,努尔买买提·阿布都克力木,马昱博,庆绍军,高志贤,&吾满江·艾力.(2014).Fe改性对Ru/Al_2O_3催化剂的马来酸二甲酯加氢性能影响.燃料化学学报,42(7),839-844.
MLA 王磊,et al."Fe改性对Ru/Al_2O_3催化剂的马来酸二甲酯加氢性能影响".燃料化学学报 42.7(2014):839-844.
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