SO_(2)选择性加氢制硫催化剂研究  

Study on sulfur dioxide selective hydrogenation catalysts for preparation of sulfur

作　　者：朱荣海 刘宗社[1,2,3] 蒋吉强 曾强[4] 洪铭江 盛斌 Zhu Ronghai;Liu Zongshe;Jiang Jiqiang;Zeng Qiang;Hong Mingjiang;Sheng Bin(Research Institute of Natural Gas Technology,PetroChina Southwest Oil&Gasfield Company,Chengdu,Sichuan,China;National Energy R&D Center of High Sulfur Gas Exploitation,Chengdu,Sichuan,China;High Sulfur Gas Exploitation Pilot Test Center,CNPC,Chengdu,Sichuan,China;Natural Gas Purification Plant General,PetroChina Southwest Oil&Gasfield Company,Chongqing,China)

机构地区：[1]中国石油西南油气田公司天然气研究院 [2]国家能源高含硫气藏开采研发中心 [3]中国石油天然气集团公司高含硫气藏开采先导性试验基地 [4]中国石油西南油气田公司天然气净化总厂

出　　处：《石油与天然气化工》2022年第6期1-7,共7页Chemical engineering of oil & gas

基　　金：中国石油西南油气田公司科技计划项目“高比表面积拟薄水铝石粉体开发研究”(20200306-03)。

摘　　要：目的解决硫磺回收装置SO_(2)选择性加氢工艺催化剂配套及传统活性氧化铝载体氧化铝含量低和钠含量高的问题。方法选择异丙醇铝为原料,利用醇铝法在实验室制备了拟薄水铝石粉体,通过挤条成型制备了活性氧化铝载体,并负载活性金属制成三叶草型SO_(2)选择性加氢制硫催化剂。结果催化剂堆积密度0.55~0.65 g/mL,比表面积≥250 m^(2)/g,孔容≥0.4 mL/g,氧化铝质量分数≥95%,氧化钠质量分数≤100×10^(-6),该催化剂在H_(2)S/SO_(2)体积比为20、H_(2)体积分数为2%、温度为200℃的条件下,催化剂的SO_(2)加氢转化率为95.13%,SO_(2)转化为元素硫的选择性为91.22%。结论催化剂具备良好的活性,可以替代进口催化剂应用于SO_(2)选择性加氢工艺硫磺回收装置。Objective Solve the catalyst support issue of sulfur dioxide selective hydrogenation process for sulfur recovery unit,and low alumina content and high sodium content of traditional activated alumina carrier.Methods Using aluminum isopropoxide as raw material,pseudo boehmite powder was prepared in the laboratory by alcohol aluminum method,activated alumina support was prepared by extrusion,and clover-type sulfur dioxide selective hydrogenation catalyst for preparation of sulfur was prepared by loading the active metal.Results The bulk density of the catalyst was 0.55-0.65 g/mL,the specific surface area was greater than or equal to 250 m^(2)/g,the pore volume was greater than or equal to 0.4 mL/g,the mass fraction of alumina was greater than or equal to 95%,and the content of sodium oxide was less than or equal to 100×10^(-6).When the volume ratio of H_(2)S to SO_(2)was 20,H_(2)concentration was 2%,and temperature was 200℃,the hydrogenation conversion rate of sulfur dioxide was 95.13%,and the selectivity of sulfur dioxide to elemental sulfur was 91.22%.Conclusions The catalyst has good activity and can be used in sulfur recovery unit of SO_(2)selective hydrogenation process instead of imported catalyst.

关 键 词：醇铝法 拟薄水铝石 三叶草形 浸渍法 选择性加氢 硫磺回收 催化剂 

分 类 号：TQ125.11[化学工程—无机化工] TQ426