球形γ-Al_(2)O_(3)孔结构及其水热稳定性调控策略  

Pore structure and hydrothermal stability control strategies of sphericalγ-Al_(2)O_(3) carrier

作　　者：莫雨凡 李慧玉 唐平贵[1] 冯拥军[1] 刘航 靳凤英 李滨 MO Yufan;LI Huiyu;TANG Pinggui;FENG Yongjun;LIU Hang;JIN Fengying;LI Bin(State Key Laboratory of Chemical Resource Engineering,Beijing University of Chemical and Technology,Beijing 100029,China;CNOOC Tianjin Chemical Research and Design Institute Co.,Ltd.,Tianjin 300131,China)

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029 [2]中海油天津化工研究设计院有限公司,天津300131

出　　处：《精细化工》2024年第9期1870-1876,共7页Fine Chemicals

基　　金：国家重点研发计划项目(2022YFA1503400);中央高校业务经费项目(JD2325)。

摘　　要：负载型催化剂广泛应用于石油化工和精细化工等重要领域,其中载体作用极为关键。多孔球形氧化铝载体具有晶型众多、孔结构优异、化学性质稳定等优点,在工业载体中所占份额最大,然而其性能与相应的孔结构及其水热稳定性息息相关。该文总结了国内外在球形γ-Al_(2)O_(3)孔结构及其水热稳定性调控策略方面的研究进展,着重从球形γ-Al_(2)O_(3)前驱体、油氨柱成型过程及其后处理三方面分析了载体孔结构调控规律,从氧化铝孔结构水热稳定性调控机制及其增强手段,如表面羟基钝化和γ-Al_(2)O_(3)含量总结了其调控策略,对国内高端球形氧化铝工业载体的未来发展提出了建议。Supported catalysts have been widely used in important fields such as petrochemicals and fine chemicals,in which the carrier plays an important role.Porous spherical alumina carrier accounts for the largest share in industrial carriers due its numerous crystal forms,excellent pore structure,and stable chemical properties.However,its performance is closely related to the corresponding pore structure and hydrothermal stability.Herein,the recent research progress,home and abroad,on the pore structure and the corresponding hydrothermal stability control strategies of spherical alumina was summarized,with the pore structure regulation rules analyzed from the aspects of Al_(2)O_(3)precursor,oil ammonia column forming process,and post-treatment,while regulation strategies from regulation mechanism and enhancement methods of alumina pore structure hydrothermal stability,such as surface hydroxyl passivation andγ-Al_(2)O_(3)content.Some suggestions were put forward for the future development of domestic high-end spherical alumina industrial carriers.

关 键 词：球形氧化铝 孔结构 水热稳定性 调控策略 载体 

分 类 号：O643.36[理学—物理化学] TQ133.1[理学—化学]