| 酸处理对Pt/ZSM-22物化及其催化性能的影响 |
| |
| 引用本文： | 张芳,卞雯,吕宏安,袁岚,何观伟.酸处理对Pt/ZSM-22物化及其催化性能的影响[J].工业催化,2019,27(12):16-19. |
| |
| 作者姓名： | 张芳 卞雯 吕宏安 袁岚 何观伟 |
| |
| 作者单位： | 西安元创化工科技股份有限公司,陕西 西安,710061 |
| |
| 基金项目： | 陕西省重点研发计划重点项目(2018ZDXM-GY-163) |
| |
| 摘 要： | 采用HCl溶液对ZSM-22分子筛载体进行酸处理,在改性后的载体上负载金属Pt制备Pt/ZSM-22催化剂。采用XRD、N2吸附-脱附和NH3-TPD等研究酸处理对载体孔结构及酸性质造成的影响,考察改性催化剂在F-T轻组分蜡制备润滑油基础油反应中的加氢异构性能。结果表明,酸处理没有破坏ZSM-22分子筛结构,可提高孔容,产生大孔径介孔,改变载体酸量。酸处理后的催化剂表现出优异的加氢异构性能,所得润滑油基础油收率、异构化率、低温性能和黏度指数明显提高。
|
| 关 键 词： | 催化剂工程 酸处理 Pt/ZSM-22催化剂 物理化学性质 异构性能 |
Effect of acidleaching on the physicochemical and catalytic properties of Pt/ZSM-22 catalyst |
| |
| Zhang Fang,Bian Wen,Lü Hongan,Yuan Lan,He Guanwei.Effect of acidleaching on the physicochemical and catalytic properties of Pt/ZSM-22 catalyst[J].Industrial Catalysis,2019,27(12):16-19. |
| |
| Authors: | Zhang Fang Bian Wen Lü Hongan Yuan Lan He Guanwei |
| |
| Affiliation: | Xi'an Origin Chemical Technologies Co. ,Ltd. , Xi'an 710061,Shaanxi,China |
| |
| Abstract: | Pt/ZSM-22 catalysts were prepared by the ZSM-22 molecular sieves modified by HCl aqueous solution as the supports.The effect of acid leaching on pore structure and acid properties was studied by XRD,N2 adsorption-desorption,and NH3-TPD.The catalytic performance of modified Pt/ZSM-22 in the hydroisomerization of F-T light component wax was also investigated.The results showed that the acid leaching didn’t damage the structure of ZSM-22,but increased the pore volume,generated some large pore diameter mesoporous,and changed the acid content of the carrier.The modified Pt/ZSM-22 catalyst showed good hydroisomerization performance.The yield,isomeric rate,pour point and viscosity index of the lubricating oil base oil product were significantly improved. |
| |
| Keywords: | catalyst engineering acid leaching Pt/ZSM-22 catalyst physicochemical properties hydroisomerization performance |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《工业催化》浏览原始摘要信息 |
|
点击此处可从《工业催化》下载全文 |
|
