氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究（英文）

何洋; 张航飞; 黄慧子; 孟记朋; 陆江银

doi:10.13568/j.cnki.651094.2018.01.009

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氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究（英文）

更新时间：2026-01-21

- 氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究（英文）
- Journal of Xinjiang University (Natural Science Edition in Chinese and English) Vol. 35, Issue 1, Pages: 51-59(2018)
- 作者机构：
  
  新疆大学石油天然气精细化工教育部和自治区重点实验室化学化工学院
- 作者简介：
- 基金信息：
- DOI：10.13568/j.cnki.651094.2018.01.009
  CLC： O621.251
- Published：2018
- 稿件说明：
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[1]何洋,张航飞,黄慧子,等.氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究（英文）[J],2018,35(01):51-59.
[1]何洋,张航飞,黄慧子,等.氧化锌负载混合载体催化剂在正丁烷芳构化反应中催化性能的研究（英文）[J],2018,35(01):51-59. DOI： 10.13568/j.cnki.651094.2018.01.009.

DOI：10.13568/j.cnki.651094.2018.01.009.

摘要

本文使用机械混合法和浸渍法制备了一系列的氧化锌负载HZSM-5/SAPO-34(HZ-SA)混合载体催化剂

并且首次将其应用于正丁烷芳构化的研究中.在反应条件为T=580?C

P=100KPa

WHSV=1 500 m L·g-1·h-1条件下

在Zn/HZ-SA催化剂上

最高的正丁烷转化率和BTX(苯

甲苯

二甲苯)收率可以分别达到76.5%和26.4%

远高于在Zn/HZSM-5上的49.1%和18.6%

以及Zn/SAPO-34的19.0%和1.1%.由XRD

BET

NH3-TPD

Py-FIIR等表征结果可知

Zn/HZ-SA催化剂具有相对较大的比表面积和较多的活性位点

以及中等强度和密度的酸性位点

改善了催化剂的催化性能.除此之外

混合载体(HZ-SA)中HZSM-5和SAPO-34之间的协同作用

也可能是Zn/HZ-SA催化剂取得优异催化性能的原因.

Abstract

A series of hybird HZSM-5/SAPO-34(HZ-SA) zeolite carriers supported Zn O catalysts were prepared using sample mechanical mixing and impregnation method

and their catalytic performance was for the first time tested in nbutane aromatization. Under the conditions of T =580?C

P=100 k Pa

WHSV=1 500 mL· g-1· h-1

the highest n-butane conversion and yield to BTX(benzene

toluene and xylene) achieved on the Zn/HZ-SA-31 catalyst were 73.1% and 26.4%

respectively

much higher than those obtained over the Zn/HZSM-5 catalyst(49.9% and 18.6%) and the Zn/SAPO-34 catalyst(19.0% and 1.1%). Based on the results of evaluation and characterization

the super catalytic performance of the Zn/HZ-SA catalyst might be attributed to 1) the large specific surface area and more number of available active sites; 2)medium density and strength of acid sites; 3) the synergistic effects between the HZSM-5 and SAPO-34 molecular sieves.

关键词

Keywords

references

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