Preparation of nano ZSM-5 with hydrophobic surfaces and application to catalytic cracking of hydrocarbon fuels(亲油性纳米ZSM-5分子筛的制备及其对碳氢燃料的催化性能)

LIUJia-zhen(刘家珍); XULi(许莉); FANGWen-jun(方文军); GUOYong-sheng(郭永胜); SHANGZhong-jin(尚忠进)

doi:10.3785/j.issn.1008-9497.2013.06.010

Zhejiang Daxue xuebao. Lixue ban (Nov 2013)

Preparation of nano ZSM-5 with hydrophobic surfaces and application to catalytic cracking of hydrocarbon fuels(亲油性纳米ZSM-5分子筛的制备及其对碳氢燃料的催化性能)

LIUJia-zhen(刘家珍),
XULi(许莉),
FANGWen-jun(方文军),
GUOYong-sheng(郭永胜),
SHANGZhong-jin(尚忠进)

Affiliations

LIUJia-zhen(刘家珍): Department of Chemistry, Zhejiang University, Hangzhou 310058, China(浙江大学化学系，浙江　杭州　310058)
XULi(许莉): Department of Chemistry, Zhejiang University, Hangzhou 310058, China(浙江大学化学系，浙江　杭州　310058)
FANGWen-jun(方文军): Department of Chemistry, Zhejiang University, Hangzhou 310058, China(浙江大学化学系，浙江　杭州　310058)
GUOYong-sheng(郭永胜): Department of Chemistry, Zhejiang University, Hangzhou 310058, China(浙江大学化学系，浙江　杭州　310058)
SHANGZhong-jin(尚忠进): Department of Chemistry, Zhejiang University, Hangzhou 310058, China(浙江大学化学系，浙江　杭州　310058)

DOI: https://doi.org/10.3785/j.issn.1008-9497.2013.06.010
Journal volume & issue: Vol. 40, no. 6
pp. 660 – 665

Abstract

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采用不同链长的有机硅烷作为表面修饰剂，在正庚烷/正丁醇中利用溶剂热合成法制备得到亲油性纳米ZSM-5分子筛.通过有机硅烷与氧化物晶种表面的羟基作用，其长链化学键合到晶种表面，形成保护层，既抑制了氧化物颗粒间的团聚，又控制了纳米ZSM-5的粒径.所制备的纳米ZSM-5平均粒径为20~70 nm，且粒径随着有机硅烷碳链长度的降低而逐渐减小.添加一定量的该纳米ZSM-5到碳氢燃料模型化合物正十二烷中，在管式反应器中（550 ℃，4 MPa）考察催化裂解行为，结果表明该亲油性纳米ZSM-5分子筛能有效催化正十二烷裂解，其裂解转化率相对于热裂解明显提高，且转化率的提高随着有机硅烷碳链长度的降低而逐渐增大，其中丙基三甲氧基硅烷修饰的ZSM-5使正十二烷的裂解转化率相对于热裂解提高了115%.

Published in Zhejiang Daxue xuebao. Lixue ban

ISSN: 1008-9497 (Print)
Publisher: Zhejiang University Press
Country of publisher: China
LCC subjects: Science: Mathematics: Instruments and machines: Electronic computers. Computer science; Science: Physics
Website: https://www.zjujournals.com/sci/EN/1008-9497/home.shtml

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