炭黑分散法制备双重孔分布的γ-Al_2O_3载体  

Preparation of dual pore size distributed γ-Al_2O_3 with pore-expanding agent of dispersed carbon black

作　　者：王雅菁[1,2] 兰学芳[1,2] 张孔远[1,2] 柴永明[1,2] 赵瑞玉[1,2] 刘晨光[1,2] 

机构地区：[1]中国石油大学(华东)重质油国家重点实验室,山东青岛266555 [2]中国石油大学(华东)CNPC催化重点实验室,山东青岛266555

出　　处：《化工进展》2012年第3期598-603,共6页Chemical Industry and Engineering Progress

基　　金：国家重点基础研究发展计划(2010CB226905);教育部创新团队重质油高效转化的绿色化学与工程项目

摘　　要：采用表面活性剂分散炭黑的方法对γ-Al2O3进行扩孔,制备出孔径较大且孔分布集中的γ-Al2O3载体。主要考察了炭黑类型、炭黑用量及炭黑分散性,如分散剂类型、用量、超声时间等对γ-Al2O3孔径分布的影响。结果表明,传统的炭黑扩孔法存在用量大的缺点,采用分散剂结合超声处理的方法可在较低炭黑用量下(<10%)取得良好的扩孔效果,制备出孔径分布集中于6 nm和10～20 nm(或20～30 nm)的γ-Al2O3载体。The γ-Al2O3 carrier with large pore diameter and appropriate pore size distribution was prepared by using carbon black as an enlarge agent.The effects of carbon black types,content and dispersion in the γ-Al2O3 power,such as the chemical properties and content of surfactant dispersant,on the pore distribution of γ-Al2O3 were studied.The results showed that dispersant agents,favoring the carbon black dispersion,could reduce the amount of carbon black and benefit the pore enlargement.By combining dispersant agents and sonication,the pore size distribution could be concentrated at 6nm and 10-20 nm（or 20-30 nm）with only 10% carbon black.

关 键 词：氧化铝 炭黑 扩孔 双孔径分布 

分 类 号：TE624.95[石油与天然气工程—油气加工工程]