TiO_(2)基制硫催化剂活性的影响因素探究  

STUDY ON ACTIVITY INFLUENCE FACTORS OF TIO_(2) BASED CATALYST FOR SULFUR PRODUCTION

作　　者：董成武 杨尊志 王鹏[1] Dong Chengwu;Yang Zunzhi;Wang Peng(Ji'nan Branch Co.,SINOPEC,Ji'nan Shandong 250000)

机构地区：[1]中国石化济南分公司,山东济南250000

出　　处：《齐鲁石油化工》2023年第3期174-178,共5页Qilu Petrochemical Technology

摘　　要：在硫磺回收过程中,低温催化反应指在催化剂作用下H_(2)S和SO_(2)转化成单质硫的过程,制硫催化剂主要是TiO_(2)基制硫催化剂,该类催化剂在长周期运行过程中会逐渐失活,造成制硫转化率降低。为了探究催化剂失活原因,本文通过BET(比表面积测试法)、SEM(扫描电子显微镜)以及使用两个周期的制硫催化剂表征分析结果等方式,对使用前后催化剂的结构进行对比,确定了造成制硫催化剂失活的主要因素,在生产中实现对催化剂的有效保护,保证装置的长周期平稳运行。In course of sulfur recovery,low temperature catalytic reaction refers to the course of transforming H_(2)S and SO_(2)into elemental sulfur under action of the catalyst.TiO_(2)based catalyst is the main catalyst for production of sulfur,which will gradually deactivate during the long period operation,thereby reducing the reaction conversion rate.In order to explore the causes of catalyst deactivation,the catalyst with two cycles use is characterized and analyzed by BET and SEM,structure of the catalyst before and after use is compared,and the main factors causing deactivation of the catalyst are determined.Effective protection of the catalyst in production is realized,so long-term and stable operation of the device is ensured.

关 键 词：硫磺回收 催化剂 二氧化钛 催化剂活性 

分 类 号：TE992.2[石油与天然气工程—石油机械设备]