非晶态合金NiWB催化转化纤维素制备多元醇研究  

Catalytic Hydroconversion of Cellulose to Polyols over the Amorphous NiWB Catalyst

作　　者：石秀敏[1] 刘海丽[1] 王晓月[1] 杜长海[1] Shi Xiumin; Liu Haili; Wang Xiaoyue; Du Changhai(School of Chemical Engineering, Changchun University of Technology ,Changchun 13001, China)

机构地区：[1]长春工业大学化学工程学院,吉林长春130012

出　　处：《广东化工》2018年第19期12-13,22,共3页Guangdong Chemical Industry

基　　金：吉林省科技厅重点科技攻关项目(20150204031GX)

摘　　要：采用化学还原法制备了系列NiWB-x非晶态合金催化剂,并用于纤维素催化加氢制备多元醇反应中。考察了还原剂浓度和反应条件对催化剂性能的影响。结果表明,适宜的还原剂浓度为0.5 mol/L,适宜的反应条件为反应温度523 K,H_2压力6 MPa,反应时间2 h。在上述条件下,纤维素转化率为100%,多元醇总收率为73.7%(乙二醇、六元醇及1,2-丙二醇收率分别为53%、13.7%和7%),催化剂稳定性较好。A series of amorphous NiWB-x catalysts were prepared by chemical reduction method for the conversion of cellulose. The effects of reductant concentration of NaBH_4 on the hydrogenation of cellulose were investigated. The results show that the conversion of cellulose was up to 100%, the total yield of polyols was 73.7 %（the yield of ethylene glycol, hexitols and 1, 2-propanediol was 53%, 13.7% and 7%, respectively） under the optimum conditions of 523 K, H_2 pressure 6.0 MPa for 2.0 h. over NiWB-0.5 catalyst. The NiWB-0.5 catalyst presented excellent stability in the successive five runs.

关 键 词：纤维素 非晶态NiWB 催化加氢 多元醇 乙二醇 

分 类 号：TK6[动力工程及工程热物理—生物能] S216.2[农业科学—农业机械化工程]