纳米Beta沸石催化剂的加氢裂化性能(英文)  

HYDROCRACKING PERFORMANCE OVER NANO-SIZED Beta ZEOLITE CATALYST

作　　者：王刚[1,2] 谷明镝[2] 方向晨[2] 韩崇仁[2] 李灿[1] 

机构地区：[1]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023 [2]中国石化抚顺石油化工研究院,辽宁抚顺113001

出　　处：《石油学报（石油加工）》2009年第1期26-30,共5页Acta Petrolei Sinica(Petroleum Processing Section)

摘　　要：成功合成了纳米Beta沸石,分析了物化性质并考察了其作为催化剂在长链烷烃加氢裂化反应中的性能。与常规的Beta沸石及采用中孔材料为硅源合成的Beta沸石相比,纳米Beta沸石的孔径变大,XRD峰变宽,峰强度降低,L酸/B酸比值明显升高,在长链烷烃加氢裂化反应中的中等馏分产物的选择性高。在相同条件的催化长链烷烃加氢裂化反应中,纳米Beta沸石催化剂上中间馏分产物的选择性比常规的Beta沸石上的提高了2.3%。Nano-sized Beta zeolite was successfully synthesized, its properties were analyzed, and its performance in the hydrocracking of long-chain alkane was investigated. Compared with the Beta zeolite prepared by the conventional hydrothermal method and the Beta zeolite with mesopore material as silica source, nano-sized Beta zeolite exhibits the larger aperture, the lower and broader XRD peaks, and the higher L/B ratio, and higher selectivity to mid-distillate products in the hydrocracking of long chain alkane. Under the same reaction conditions, the selectivity to middistillate products over nano-sized Beta zeolite is 2.3G higher than that over conventional Beta zeolite catalyst.

关 键 词：纳米Beta沸石 加氢裂化 VGO 长链烷烃 

分 类 号：TE624.4[石油与天然气工程—油气加工工程]