Catalytic performance of Zn/NaHZSM-5 zeolite for C<sub>5</sub>－C<sub>8</sub> chain-alkanes aromatization

ZHAO Yun; LIU Chunyan; LIU Jiaxu; HE Ning; GUO Hongchen

doi:10.11949/0438-1157.20190021

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Catalytic performance of Zn/NaHZSM-5 zeolite for C₅－C₈ chain-alkanes aromatization

Catalysis\, kinetics and reactors | 更新时间：2026-07-24

- Catalytic performance of Zn/NaHZSM-5 zeolite for C₅－C₈ chain-alkanes aromatization
- CIESC Journal Vol. 70, Issue 6, Pages: 2182-2191(2019)
- 作者机构：
  
  大连理工大学化工学院，精细化工国家重点实验室，辽宁大连 116023
- 作者简介：
- 基金信息：
- DOI：10.11949/0438-1157.20190021
  CLC： TQ 028.8
- Received：09 January 2019，
  
  Revised：2019-03-21，
  
  Online First：15 June 2020，
  
  Published：05 June 2019
- 稿件说明：
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赵云, 刘春燕, 刘家旭, 贺宁, 郭洪臣. Zn/NaHZSM-5沸石在C₅～C₈链烷烃芳构化反应中的催化性能[J]. 化工学报, 2019, 70(6): 2182-2191 DOI: 10.11949/0438-1157.20190021.

ZHAO Yun, LIU Chunyan, LIU Jiaxu, HE Ning, GUO Hongchen. Catalytic performance of Zn/NaHZSM-5 zeolite for C₅－C₈ chain-alkanes aromatization[J]. CIESC Journal, 2019, 70(6): 2182-2191 DOI: 10.11949/0438-1157.20190021.
赵云, 刘春燕, 刘家旭, 贺宁, 郭洪臣. Zn/NaHZSM-5沸石在C₅～C₈链烷烃芳构化反应中的催化性能[J]. 化工学报, 2019, 70(6): 2182-2191 DOI: 10.11949/0438-1157.20190021. DOI：

ZHAO Yun, LIU Chunyan, LIU Jiaxu, HE Ning, GUO Hongchen. Catalytic performance of Zn/NaHZSM-5 zeolite for C₅－C₈ chain-alkanes aromatization[J]. CIESC Journal, 2019, 70(6): 2182-2191 DOI: 10.11949/0438-1157.20190021. DOI：

摘要

采用氨气程序升温脱附（NH

-TPD）、紫外-可见光谱和小型固定床反应器，重点研究了碱金属钠离子和过渡金属锌离子改性对纳米H-ZSM-5沸石表面酸性及其催化C

～C

链烷烃芳构化反应性能的影响。结果表明，用碱金属钠离子改性能够有效地消除沸石表面的强酸中心，适当降低催化剂表面酸量，从而减少甲烷、乙烷和丙烷等低值副产物的生成，优化芳构化反应产物分布。适宜的Zn

负载量为3%（质量分数），过高的Zn

负载量会使产物中干气生成量增大，不利于芳烃收率的提高。C

～C

链烷烃芳构化的适宜反应温度为530℃。

Abstract

Ammonia gas temperature programmed desorption (NH

-TPD)

UV-visible spectroscopy and small fixed-bed reactor were used to study the surface acidity of nano-H-ZSM-5 zeolite modified by alkali metal sodium ion and transition metal zinc ion.

The results showed that alkali metal ion Na

modification can effectively eliminate the strong acid sites and reduce the acid amount of the zeolite

which consequently optimized the products distribution of aromatization process by suppressing the production of low-value by-products like methane

ethane or propane. The optimum Zn loading for aromatics production was 3% (mass)

while further increasing Zn loadings resulted in high yield of dry gas. The suitable reaction temperature for C

－C

alkanes aromatization was 530℃.

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references

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⁰

Catalytic performance of Zn/NaHZSM-5 zeolite for C5－C8 chain-alkanes aromatization

DOI：10.11949/0438-1157.20190021

摘要

Abstract

关键词

Keywords

references

Catalytic performance of Zn/NaHZSM-5 zeolite for C₅－C₈ chain-alkanes aromatization