无溶剂条件下Ru/Mn-Al催化糠醇加氢制1,2-戊二醇  

Hydrogenation of furfuryl alcohol to 1,2-pentanediol over Ru/Mn-Al catalysts under solvent-free condition

作　　者：王新承 杨靖丰 郑枝源 黄龙[1] 易玉峰[1] 高乐 杜松松 Wang Xincheng;Yang Jingfeng;Zheng Zhiyuan;Huang Long;Yi Yufeng;Gao Le;Du Songsong(Beijing Key Laboratory of Fuel Clean and Efficient Catalytic Emission Reduction Technology,Beijing Institute of Petrochemical Technology,Beijing 102617,China;Shandong Innovation Center for Non-grain Ethanol Biorefinery Technology,Linyi 276400,Shandong,China)

机构地区：[1]北京石油化工学院燃料清洁化及高效催化减排技术北京市重点实验室,北京102617 [2]山东省非粮乙醇生物炼制技术创新中心,山东临沂276400

出　　处：《工业催化》2022年第5期60-72,共13页Industrial Catalysis

基　　金：国家自然科学基金项目(21908009)。

摘　　要：以糠醇为原料经催化加氢制1,2-戊二醇生产工艺开发是当前研究热点。设计制备了Mn-Al二元复合载体负载型Ru催化剂,通过N_(2)物理吸附、H_(2)-TPR、XRD等对其表征分析。对反应时间、催化剂组成及用量、反应压力、反应溶剂、催化剂使用寿命等条件进行优化,优选出了Ru/Mn_(0.67)Al_(0.33)催化剂,并分析了低浓度糠醇反应条件下催化剂失活原因。在10%糠醇溶液、温度150℃和H_(2)压力2 MPa条件下,1,2-戊二醇收率达48.0%,糠醇接近完全转化,催化剂可重复使用至少11次;而无溶剂条件下,催化剂与糠醇质量比为1∶25时,1,2-戊二醇选择性仍高达42.3%,催化剂至少可重复使用7次。1,2-pentanediol production from biomass-based furfuryl alcohol is currently a focus for development.In this paper,a Mn-Al binary composite carrier supported Ru catalyst was designed,prepared and characterized by N_(2)physical adsorption,H_(2)-TPR and XRD.The reaction condition,i.,e.,reaction time,catalyst composition and dosage,reaction pressure,reaction solvent and catalyst service life,was optimized to obtain a Ru/Mn_(0.67)Al_(0.33)catalyst as the result.The causes behind catalyst deactivation under low-concentration furfuryl alcohol reaction condition was analyzed.Under condition of 10wt%furfuryl alcohol solution,150℃and H_(2)pressure of 2 MPa,1,2-pentanediol yield of 48.0%and furfuryl alcohol conversion of nearly 100%was attained;the catalyst could be reused for at least 11 times.Under solvent-free condition and catalyst-to-furfuryl-alcohol mass ratio of 1∶25,selectivity to 1,2-pentanediol was still as high as 42.3%,and the catalyst could be reused for at least 7 times.

关 键 词：精细化学工程 糠醇 无溶剂 1 2-戊二醇 催化加氢 

分 类 号：O643.36[理学—物理化学] TQ223.16[理学—化学]