不同ZSM-5分子筛对增产低碳烯烃的性能对比及改性研究  

Performance comparison of and modification research on ZSM-5 molecular sieves for improving output of low-carbon olefins

作　　者：樊江涛[1] 柳召永[1,2] 王智峰[1] 廖翼涛[1] 高雄厚[1] 

机构地区：[1]中国石油天然气股份有限公司兰州化工研究中心,甘肃兰州730060 [2]中国石油大学化学工程学院,山东青岛266555

出　　处：《工业催化》2013年第6期41-45,共5页Industrial Catalysis

摘　　要：低硅择形分子筛在增产液化气和丙烯方面优于高硅择形分子筛,但加入低硅择形分子筛助剂后汽油收率降低幅度较大。改性后ZSM-5分子筛制备的催化剂与未改性ZSM-5分子筛制备的催化剂相比,液化气和丙烯产率均有明显提高,重油产率明显降低,转化率升高,总液收基本不变,汽油中烯烃含量有所降低,芳烃含量提高。The performance of shape-selective molecular sieve catalyst with low silicon content such as improving output of liquefied petroleum gas and propylene were better than that of shape-selective catalysts with high silicon content, but the yield of gasoline decreased significantly if the additive with low silicon content was added. Compared with the catalyst prepared by using the original ZSM-5 molecular sieve, the properties of the catalyst prepared with modified ZSM-5 molecular sieve were enhanced, and the yield of liquefied petroleum gas and propylene and the conversion were obviously increased, and heavy oil yield was reduced remarkably; the content of aromatic compounds in gasoline was increased and the content of olefin was slightly decreased, while the total liquid yield was kept unchanged.

关 键 词：催化剂工程 ZSM-5分子筛 磷改性 低硅 高硅 低碳烯烃 

分 类 号：TQ426.6[化学工程] O643.36[理学—物理化学]