Difference of acid characters and catalytic cracking performance between ZSM-5 zeolites synthesized with various templates

MA Tong; GENG Zubao; LI Bing; ZHAO Qi; GONG Yanjun

doi:10.11949/j.issn.0438-1157.20160397

您当前的位置：

首页 >

文章列表页 >

Difference of acid characters and catalytic cracking performance between ZSM-5 zeolites synthesized with various templates

更新时间：2025-12-10

- Difference of acid characters and catalytic cracking performance between ZSM-5 zeolites synthesized with various templates
- CIESC Journal Issue 8, Pages: 3374-3379(2016)
- 作者机构：
  
  中国石油大学(北京)化学工程学院, 重质油国家重点实验室, CNPC催化重点实验室,北京,102249
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160397
  CLC： 643.32
- Online First：05 August 2016，
  
  Published：05 August 2016
- 稿件说明：
移动端阅览
MA Tong, GENG Zubao, LI Bing, et al. Difference of acid characters and catalytic cracking performance between ZSM-5 zeolites synthesized with various templates[J]. CIESC Journal, 2016, (8): 3374-3379.
DOI：

MA Tong, GENG Zubao, LI Bing, et al. Difference of acid characters and catalytic cracking performance between ZSM-5 zeolites synthesized with various templates[J]. CIESC Journal, 2016, (8): 3374-3379. DOI： 10.11949/j.issn.0438-1157.20160397.

摘要

分别以正丁胺、四丙基溴化铵为模板及无模板条件下制备了3种晶粒尺寸及硅铝比相近的ZSM-5分子筛，通过X射线衍射（XRD）、扫描电镜（SEM）、氨气程序升温脱附（NH3-TPD）、N2吸附/脱附对分子筛进行了表征，将其应用于正己烷裂解反应考察其性能差异。结果表明，实验控制三者ZSM-5样品具有相似的硅铝比，却仍显示出不同的酸性质及酸分布；在相同初始转化率下，不同模板制备的ZSM-5具有不同的产物选择性，正丁胺和四丙基溴化铵为模板制备的ZSM-5分子筛的双烯选择性高于无模板制备的ZSM-5分子筛，但无模板制备的ZSM-5分子筛表现出更高的裂解稳定性，转化率可在1200 min内保持在96%以上，远远高于其他模板制备的ZSM-5分子筛。

Abstract

ZSM-5 zeolites with similar crystal size and Si/Al ratio were synthesized in the presence of n-butylamine (NBA)

tetrapropyl ammonium (TPA+) and no template (NT)

respectively. The samples were characterized by XRD

TEM

NH3-TPD

N2 sorption analysis and applied to n-hexane cracking to investigate the difference of their acid characters

cracking selectivity and lifetime. The results showed that the samples had different acid properties and acid distribution in spite of similar Si/Al. Under the same initial conversion

the samples exhibited different product distribution. ZSM-5 using NBA and TPA+ showed higher selectivity of ethylene and propylene than ZSM-5 without template. However

the latter had much longer stable period than the former two and its conversion could stay above 96% for 1200 min.

关键词

Keywords

references

Views

204

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Researches on trimethylphosphine and metal oxide modification on ZSM-5 and their influence on catalytic cracking

Synthesis of La-modified ZSM-5 zeolite and performance for catalytic cracking reaction

One-step catalytic cracking of crude oil to light olefins: experimental and reaction pathway studies

Molecular simulation of small molecule adsorption and diffusion behavior in PVA hybrid membranes

Investigation of Pt-Ga/CeO2-ZrO2-Al2O3 bifunctional catalyst for the catalytic conversion of n-butane into olefins

Related Author

Mudi XIN

Enhui XING

ZHANG Luoming

XU Chunfang

MA Tong

GONG Yanjun

DANG Falu

SUN Zhiguo

Related Institution

Sinopec Research Institute of Petroleum Processing

Petrochemical Research Institute of PetroChina

State Key Laboratory of Heavy Oil Processing, China University of Petroleum

Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology, School of Chemistry and Chemical Engineering, Guangxi University

School of Chemistry and Chemical Engineering, Guangxi University

⁰