炼油FCC废催化剂硅掺杂拟薄水铝石原位构筑改性复活研究  

Study on the regeneration for refining waste FCC catalyst by in-situ construction of silica-dopedpseudo boehmite

作　　者：袁程远 陈强 赵倩 沈晓贤 毕爱军 鞠冠男 YUAN Chengyuan;CHEN Qiang;ZHAO Qian;SHEN Xiaoxian;BI Aijun;JU Guannan(School of Materials Science and Engineering,Shandong University of Technology,Zibo 255049,China;Shanxi Tengmao Technology Company Limited,Hejin 043300,China)

机构地区：[1]山东理工大学材料科学与工程学院,山东淄博255049 [2]山西腾茂科技股份有限公司,山西河津043300

出　　处：《山东理工大学学报（自然科学版）》2023年第2期20-23,共4页Journal of Shandong University of Technology:Natural Science Edition

基　　金：国家自然科学基金项目(21902008);2022年山东理工大学大学生创新创业训练计划项目。

摘　　要：改性复活是一种理想的FCC废催化剂后处理方式,其中“酸抽提”是最为常用的改性复活方法。针对“酸抽提”改性复活方法存在的复活效果不理想和环境污染问题,通过在“酸抽提”改性复活基础上结合原位酸、碱中和的构筑方法,在FCC废催化剂结构当中原位构筑硅掺杂拟薄水铝石次级结构单元,实现了FCC废催化剂的高效改性复活,同时避免了环境污染问题。评价结果表明,与常规“酸抽提”改性复活方法制备的复活剂相比,硅掺杂拟薄水铝石原位构筑改性复活制备的复活剂的催化裂化性能得到了显著改善,转化率和轻质油品汽油收率较前者分别提高了4.54%和2.36%。The regeneration of refinery waste FCC(fluid catalytic cracking)catalyst through modification has been considered as an ideal disposal way for waste FCC catalyst,for which the“acid extracting”is the most generally used method.To solve the drawbacks of“acid extracting”such as unsatisfied effect and environmental pollution,the secondary unit of silica-doped pseudo boehmite was constructed in waste FCC catalyst based on“acid extracting”method combining in-situ acid-base neutralization reaction,which made the highly efficient regeneration for waste FCC catalyst while avoiding environmental pollution.Evaluation results suggested that,compared with the regenerated catalyst prepared by traditional“acid extracting”,the catalytic cracking performance of regenerated catalyst made by this work was significantly improved with conversion and gasoline yield increasing by 4.54 percentage points and 2.36 percentage points respectively,which indicated the excellent regeneration result of this work.

关 键 词：FCC废催化剂 复活 硅掺杂 拟薄水铝石 炼油 

分 类 号：TB532.1[理学—物理] TB553[理学—声学]