【作者】 王开；

【导师】 张敬畅；

【作者基本信息】 北京化工大学 ， 工业催化， 2006， 硕士

【摘要】 随着世界环保法规的日趋严格,炼油工业在生产和环保方面都面临着巨大的挑战。因此,脱硫过程成为苯类精制和石油炼制过程中的一个重要环节。而开发高效的脱硫催化剂成为这个过程的关键问题。本研究主要目的是开高效的脱硫催化剂研究与制备。在剖析国外脱硫催化剂的物化性质的基础上,以γ-Al2O3为载体,制备出活性组分为Mo、Co和W元素的脱硫催化剂,本催化剂能用于粗苯精制以及各类含硫有机物的脱硫过程。它能有效的脱出燃料油以及粗苯中的含硫物质如噻吩等有机化合物。本催化剂能使粗苯中的噻吩从2500ppm降到小于0.5ppm,甚至为零,在相同反应条件下,其脱硫效果高于国外著名BASF公司的同类型的脱硫催化剂。采用XRD、BET、IR和XPS等多种分析方法对催化剂进行表征。XRD显示,本催化剂中,Mo、Co、W等物质以高度分散的形态分布在载体表面,载体粒晶大小为11.05nm。由BET测试可知催化剂的比表面积为230.80m2/g;IR测试显示催化剂本身具有B酸和L酸两种酸位。此外,本研究还对催化剂的最佳反应条件进行优化,并在这些最佳工艺条件下对催化剂做了长达240小时的稳定性考评,能够有效的使有机化合物中的含硫物质噻吩从2500ppm降到小于0.5ppm。证明本催化剂具有较好的稳定性和很好的脱硫活性。更多还原

【Abstract】 The rule protect of environment is the stricter and stricter, The oil refining industry will face a big challenge. So,the desulfurize process of the oil and benzene refining will play a importment role in our lives. Then,the research and exploitation of new high efficiency desulfurize catalyst is an importment key.The aim of this paper is to reseach and manufacture a new kind of catalyst which will be used to desulfurize from the oil and benzene. On the base of analysis of catalyst of overseas, we had invented a catalyst which is made of elements:Mo, Co, W and γ-Al2O3. It can be used to desulfurize thiophene and other organic sulfur from the gasolene, diesel oil and raw benzene. Now, it can reduce thiophene from the2500ppm to under0.5ppm At the same reaction conition,the catalyst’s efficiency is highter than the BASF’s.The analysis technique of XRD, BET, IR and XPS was used to token the catalyst. The result show it is a amorphous, active Substance uniformity cover the surface of γ-Al2O3catalyst which crystal size is11.05nm and which also have a big surface which is230.80m2/g and have B acid sit and L acid sit on its surface. Furthermore, this paper had optimized the reaction condition of the catalyst’use. And on the reaction conditiono, we have a evaluate of the catalyst which had lasted240hours. The result is that the catalyst can reduce the thiophene from2500ppm to under0.5ppm. It show that the catalyst have a high efficiency and high stability and high selectivity.更多还原