γ-Al_(2)O_(3)性质对费托蜡加氢裂化反应性能的影响  

Effect ofγ-Al_(2)O_(3) properties on performance of catalyst for Fischer-Tropsch wax hydrocracking

作　　者：杨天华 程秋香 苏涛 刘树伟 韩磊 刘亚青 YANG Tian-hua;CHENG Qiu-xiang;SU Tao;LIU Shu-wei;HAN Lei;LIU Ya-qing(Hydrocarbon High-efficiency Utilization Technology Research Center,Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Xi'an 710075,China;Yan'an Energy and Chemical Co.,Ltd.,Shaanxi Yanchang Petroleum(Group)Co.,Ltd.,Yan'an 716000,China)

机构地区：[1]陕西延长石油(集团)有限责任公司碳氢高效利用技术研究中心,陕西西安710075 [2]陕西延长石油(集团)有限责任公司延安能源化工集团有限责任公司,陕西延安716000

出　　处：《现代化工》2021年第8期101-105,共5页Modern Chemical Industry

基　　金：国家重点研发计划项目(2018YFB0604600)。

摘　　要：选取2种不同氧化铝作为载体制备催化剂,利用费托蜡加氢裂化小试装置评价2种加氢裂化催化剂对反应性能的影响,同时采用低温氮气吸脱附、X射线衍射和吡啶-红外漫反射等表征手段对2种氧化铝及其加氢裂化催化剂的结构和物化性质进行分析。结果表明,Cat.-B催化剂重质蜡油转化率为98.46%,轻质燃料油选择性为92.76%;而Cat.-A催化剂重质蜡油转化率为94.7%,轻质燃料油选择性高达95.58%,表现出优异的催化活性。因此,具有更大的介孔孔道和孔径的A型氧化铝更适合作费托蜡加氢裂化催化剂的载体。Two kinds of alumina are chosen as support respectively to prepare two kinds of catalyst.The reaction performance of two catalysts is evaluated on a Fischer-Tropsch wax hydrocracking pilot.The structure,and physical and chemical properties of the alumina and the catalysts are characterized via low-temperature nitrogen adsorption and desorption,X-ray diffraction and pyridine-infrared diffuse reflection.Over Cat.-B catalyst,the conversion rate of heavy wax oil can reach 98.46%,the selectivity of light fuel oil achieves 92.76%.Over Cat.-A catalyst,the selectivity for light fuel oil reaches 95.58%and the conversion rate of heavy wax oil is 94.7%,showing an excellent catalytic activity.Type A alumina with larger mesoporous pores and pore diameter is more suitable as a carrier for Fischer-Tropsch wax hydrocracking catalyst.

关 键 词：载体 加氢裂化 催化剂 孔径 催化活性 

分 类 号：TE65[石油与天然气工程—油气加工工程]