摘要
研究两种内蒙古煤系高岭土(1#、2#)的化学组成、晶体结构并与苏州高岭土进行了比较。对三种高岭土进行酸改性,利用BET、吡啶-TPD和微反测试分别研究改性前后高岭土的性能特点。并将内蒙古高岭土1#与苏州高岭土采用半合成方法合成了FCC催化剂,测定了其裂化活性。研究结果表明,内蒙古1#具有较良好的晶体结构和化学组成,经酸改性后比表面积大大增加,具有合适的孔径分布,裂化活性较好,可以取代苏州高岭土作为FCC催化剂的基质。
The composition and crystalloid structure of two sorts of coal-derived kaolin from Inner Mongolia were studied and treated by HCI. The acid-modified kaolin was characterized by pyridine- TPD, BET. FCC properties of the partially-synthesized samples from Inner Mongolia and Suzhou was compared by activity test. The results showed that the kaolin from Inner tion and crystalloid structure; the pore distribution and surface area was greatly improved after acidtreatment, exhibiting good cracking activity. The inner Mongolian kaolin could be alternative to Suzhou kaolin as the matrix for FCC catalyst.
出处
《工业催化》
CAS
2006年第4期14-17,共4页
Industrial Catalysis
基金
中国石化总公司资助项目(X503067)
关键词
高岭高岭土
酸改性
FCC催化剂
基质
Inner Mongolian kaolin
acid-treatment
FCC activity
matrix
