Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH<sub>3</sub>Br

CHEN Tan; CHEN Hao; FU Jie; CHEN Kequan; OUYANG Pingkai

doi:10.11949/j.issn.0438-1157.20161659

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Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH₃Br

更新时间：2025-12-10

- Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH₃Br
- CIESC Journal Issue 6, Pages: 2344-2351(2017)
- 作者机构：
  
  1. 南京工业大学生物与制药工程学院,江苏,南京,211800
  2. 浙江大学生物质化工教育部重点实验室, 化学工程与生物工程学院,浙江,杭州,310027
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20161659
  CLC： Q032
- Online First：05 June 2017，
  
  Published：05 June 2017
- 稿件说明：
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CHEN Tan, CHEN Hao, FU Jie, et al. Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH₃Br[J]. CIESC Journal, 2017, (6): 2344-2351. DOI: 10.11949/j.issn.0438-1157.20161659.
DOI：

CHEN Tan, CHEN Hao, FU Jie, et al. Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH₃Br[J]. CIESC Journal, 2017, (6): 2344-2351. DOI: 10.11949/j.issn.0438-1157.20161659. DOI：

摘要

采用等体积浸渍法制备了不同负载量（1%~7%）的CuO/HZSM-5催化剂，在固定床反应器中研究了不同反应温度、溴甲烷流量以及CuO负载量对溴甲烷芳构化催化性能的影响。采用SEM、XRD、N2吸附脱附、TEM、XPS、TG、DSC、NH3-TPD等技术对反应前后的催化剂进行表征。XRD 结果显示活性组分CuO 在HZSM-5上具有很好的分散性，并且反应后Cu晶型不变。NH3-TPD 结果显示3%的CuO 负载后，催化剂强酸量增加。在CuO 负载量为3%，温度为360℃，反应空速为240 ml·g-1·h-1 条件下得到最高的芳烃收率（22.3%）。XPS 结果显示反应后在催化剂上主要的积炭为石墨碳。催化剂稳定性测试结果表明反应40 h内催化活性没有明显下降。

Abstract

CuO/HZSM-5 catalysts with 1%—7% CuO loading

which were prepared by incipient wetness impregnation

were used to study catalytic performance in the conversion of CH3Br to aromatic compounds in a fixed-bed reactor by changing temperature

CH3Br flow rate and CuO loading. Fresh and used catalysts were characterized by SEM

TEM

XRD

XPS

DSC

N2 adsorption and desorption

and NH3-TPD. XRD results showed that CuO was highly dispersed on HZSM-5 and structure of CuO crystals did not change during reaction. NH3-TPD results showed that 3% (mass) CuO loading increased strong acidity of catalyst. XPS results showed that coke deposition on used CuO/HZSM-5 catalyst was mainly graphite. The highest aromatic yield of 22.3% was achieved at condition of 3% (mass) CuO loading

360℃ temperature and 240 ml·g-1·h-1 GHSV. The 3% (mass) CuO/HZSM-5 maintained stable catalytic activity within 40 h reaction time.

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Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH3Br

DOI：10.11949/j.issn.0438-1157.20161659

摘要

Abstract

关键词

Keywords

references

Catalytic performance of CuO/HZSM-5 in aromatic synthesis from CH₃Br