Pd催化剂上乙二醇加氢提高紫外透光率的研究  

Upgrading the ultraviolet transmittance of monoethylene glycol on Pd-based catalyst

作　　者：龚海燕 王誉蓉 刘俊涛 Gong Haiyan;Wang Yurong;Liu Juntao(State Key Laboratory of Green Chemical Engineering and Industrial Catalysis,SINOPEC Shanghai Research Institute of Petrochemical Technology,Shanghai 201208,China)

机构地区：[1]中国石化上海石油化工研究院,绿色化工与工业催化国家重点实验室,上海201208

出　　处：《工业催化》2021年第4期73-76,共4页Industrial Catalysis

摘　　要：采用Pd催化剂开展乙二醇加氢精制提高产品紫外透光率的研究。考察精制过程中反应温度、反应压力、空速和氢醇物质的量比等因素对乙二醇紫外透光率的影响。研究结果表明,在反应温度(50~80)℃、反应压力(0.5~0.6)MPa、体积空速(3~8)h^(-1)和氢醇物质的量比0.03~0.05条件下,可将原料乙二醇220 nm、275 nm和350 nm处的紫外透光率从47.02%、83.55%、97.70%分别提高至77%、94%、99%以上。400 h稳定性研究结果显示,催化剂稳定性良好。In order to upgrade the ultraviolet transmittance(UV)of monoethyleneglycol(EG),the hydrogenation technology based on a supported Pd catalyst was employed in this paper.The effects of hydrogenation temperature,space velocity,hydrogen-alcohol mole ratio,hydrogenation pressure on EG properties were investigated.The results show that the UV values of EG on 220 nm,275 nm and 350 nm were increased to above 77%,94%,99%from 47.02%,83.55%,97.70%,respectively,under the optimum conditions which were temperature(50-80)℃,space velocity(3-8)h^(-1),hydrogen-alcohol mole ratio 0.03-0.05,and pressure(0.5-0.6)MPa.The catalyst remained stable when it was subjected to a stability test for 400 h.

关 键 词：有机化学工程 乙二醇 加氢 精制 紫外透光率 

分 类 号：TQ426.94[化学工程] TQ233.162