催化裂化汽油重馏分催化氧化脱硫醇的实验室研究  

REMOVAL OF MERCAPTANS FROM HYDROTREATED HEAVY FCC NAPHTHA

作　　者：潘光成[1] 吴明清[1] 陶志平[1] 李涛[1] 

机构地区：[1]石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2005年第12期11-13,共3页Petroleum Processing and Petrochemicals

基　　金：国家经贸委"国家技术创新计划"项目(02CJ-04-005)专题;中国石油化工股份有限公司项目(101044)。

摘　　要：采用选择性加氢技术对FCC汽油重馏分进行处理时,有可能产生微量的二次硫醇,其稳定性高,较难脱除。在实验室研究了该二次硫醇被催化氧化脱除的效果。结果表明,离子对型脱硫醇催化剂的脱硫醇活性明显优于常规单一金属钛菁催化剂,复配型活化剂的氧化脱硫醇活性明显优于常规单一型活化剂。以多种加氢催化裂化汽油重馏分为原料进行了1500h固定床催化氧化脱硫醇试验,结果表明,离子对型脱硫醇催化剂及复配型脱硫醇活化剂表现出良好的原料适应性及脱硫醇活性,脱后硫醇性硫含量可以稳定在5μg/g以下。该催化氧化脱硫醇工艺可以与加氢技术相配合,用于低硫清洁燃料的生产。Recombinant mercaptans.formed during the selective hydrodesulfurization of heavy FCC naphtha were stable and hard to be removed. The oxidation removal of these stable mercaptans with different catalysts and promoters was studied in the laboratory. The test results showed that an ion-pair-based catalyst combining with a complex-based promoter exhibited higher oxidation activity and stability than a conventional catalyst combining with a conventional promoters with said catalyst combination the contents of mercaptan sulfurs in hydrotreated heavy FCC naphtha feeds （various from 19 - 34μg/g） could stably reduced to below 5μg/g during a 1 500h fixed-bed run. It was suggested that the catalytic oxidation of mercaptans could be used following the selective hydrodesulfurization of heavy FCC naphtha to produce low sulfur clean fuel.

关 键 词：催化裂化 汽油料 硫醇 催化剂 活化剂 

分 类 号：TE624.55[石油与天然气工程—油气加工工程] TE626.21