PDF全文下载：2011040351
薛经纬1 ， 王龙江1， 于元章1* ， 高步良2
（1. 山东理工大学 化工学院，山东 淄博 255049； 2. 山东齐鲁科力化工研究院，山东 淄博 255086）
摘要: 加氢催化剂的硫化预处理过程是决定催化剂活性和选择性的重要环节。在耐硫变换催化剂上负载固体硫化物，采用气相自硫化技术对耐硫变换催化剂进行预硫化。通过高压微反实验装置评价表明，其活性明显高于CS2硫化的催化剂。采用BET、SEM和XRD等方法对硫化后催化剂的微观结构进行表征的结果表明，新型自硫化工艺形成的催化剂粒子分布比CS2硫化法形成的催化剂均匀，在表面上没有积碳形成。硫化前后比表面积、孔容、平均孔径和孔分布基本保持不变。该技术与传统器内预硫化工艺相比预硫化时间短，易于控制。
关键词: 耐硫变换催化剂； 气相自硫化； 器外预硫化
中图分类号: TQ 426文献标志码： A
Performance and Structure Characterization of Self-sulfidized Sulfur-tolerant Conversion Catalyst
XUE Jing-wei1， WANG Long-jiang1， YU Yuan-zhang1， GAO Bu-liang2
(1. College of Chemical Engineering, Shandong University of Technology, Zibo 255049, China；
2. Shandong Qilu Keli Chemical Institute, Zibo 255086, China)
Abstract: The pretreatment process of hydrogenation catalyst is important for catalyst activity and selectivity. Solid sulfide was loaded on sulfur-tolerant conversion catalyst and the sulfur-tolerant conversion catalyst was presulfidized by gas-phase self-sulfurization method. The activity evaluation results showed that the activity of the catalyst is significantly higher than that by CS2 presulfurization. The structure of the presulfidized catalyst was characterized by N2 adsorption, SEM and XRD. The results showed that the particle distribution of self-sulfidized catalyst was more even than CS2 presulfidized catalyst, and there was no coking phenomenon on the surface. The specific surface area, pore volume, pore size and pore size distribution of the catalyst remain unchanged after pretreatment. Compared with the traditional in-situ presulfurization, self-sulfurization method has a shorter pretreatment time and can be controlled more easily.
Key words: sulfur-tolerant conversion catalyst；gas-phase self-sulfurization；ex-situ presulfurization
收稿日期:2011-03-07
作者简介: 薛经纬（1986—）,男, 硕士研究生.*通信联系人.
