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MCM-41-HY介-微孔复合分子筛的水热合成及应用
引用本文:常玉红,戴宝琴,王东青,孙发民,田然.MCM-41-HY介-微孔复合分子筛的水热合成及应用[J].石油学报(石油加工),2009,25(6):835-840.
作者姓名:常玉红  戴宝琴  王东青  孙发民  田然
作者单位:1. 中国石油大庆化工研究中心,黑龙江,大庆,163714
2. 中国石油大庆化工研究中心,黑龙江,大庆,163714;中国石油大学重质油国家重点实验室,北京,102249
基金项目:中国石油天然气股份有限公司科学研究与技术开发项目 
摘    要: 以微孔HY浆液为母液,合成了一种介-微孔复合分子筛HY/MCM-41。通过XRD,BET,NH3-TPD等手段对复合材料进行了表征,并对复合分子筛的水热稳定性进行了考察。结果表明,复合材料同时具有中孔分子筛MCM-41和微孔HY型沸石的特点,并且和纯MCM-41分子筛相比,复合分子筛的酸性明显增强,并且水热稳定性提高。利用一段串联加氢裂化工艺,考察了复合分子筛的催化性能。200ml固定床加氢装置评价结果表明,在控制原料>350℃馏分油转化率为75%的条件下,加氢裂化生成油C5+液收为98.51%,最大量柴油馏分的收率为69.09%,中油选择性80.5%,能满足工业装置最大量生产柴油的需要。

关 键 词:中间馏分油  复合分子筛  催化性能  中油选择性
收稿时间:2008-08-14;

SYNTHESIS AND APPLICATION OF MCM-41-HY COMPOSITE ZEOLITE WITH MESOPOROUS AND MICROPOROUS STRUCTURE
CHANG Yu-hong,DAI Bao-qin,WANG Dong-qing,SUN Fa-min,TIAN Ran.SYNTHESIS AND APPLICATION OF MCM-41-HY COMPOSITE ZEOLITE WITH MESOPOROUS AND MICROPOROUS STRUCTURE[J].Acta Petrolei Sinica (Petroleum Processing Section),2009,25(6):835-840.
Authors:CHANG Yu-hong  DAI Bao-qin  WANG Dong-qing  SUN Fa-min  TIAN Ran
Institution:1. PetroChina, Daqing Petrochemical Research Center, Daqing 163714, China; 2. State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
Abstract:A new micro-mesoporous MCM-41-HY composite molecular sieve was prepared with HY zeolite as the mother liquor.The synthesized composite sample was characterized by XRD, NH_3-TPD, N_2 adsorption and desorption.In addition, its hydrothermal stability was investigated.The catalytic performance of the composite zeolite was studied on a 200 mL fixed-bed hydrogenation unit with the mixed oil of Daqing VGO and CGO as the feedstock.The results showed that the MCM-41-HY composite molecular sieve had the properties of both mesoporous MCM-41 and the microporous HY, and had stronger acid strength and higher hydrothermal stability than pure mesoporous MCM-41.Under the 75% conversion of >350℃ feedstock distillate, C_(5+) liquid yield of 98.51% was obtained.The yield of maximum diesel distillate and the selectivity of middle distillates were 69.09% and 80.5%, respectively, which could meet the requirement on maximum diesel distillate yield in oil refinery.
Keywords:composite molecular sieves hydrocracking  catalytic performance  middle distillate selectivity
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