Insights into the confinement effect on isobutane alkylation with C<sub>4</sub> olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study

Shuo Li; Jianlin Cao; Xiang Feng; Yupeng Du; De Chen; Chaohe Yang; Wenhua Wang; Wanzhong Ren

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Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study

Full Length Article | Updated：2026-01-06

- Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study
- Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study
- 中国化学工程学报（英文版） 2022年47卷第7期页码：174-184
- Affiliations：
  
  1. College of Chemistry & Chemical Engineering, Yantai University,Yantai,China,264005
  2. State Key Laboratory of Heavy Oil Processing, School of Chemical Engineering, China University of Petroleum,Qingdao,China,266580
  3. Department of Chemical Engineering, Norwegian University of Science and Technology, Trondheim,Norway,7491
- Author bio：
- Funds：
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  中图分类号：
- 纸质出版：2022
- Accepted：
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Shuo Li, Jianlin Cao, Xiang Feng, 等. Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study[J]. 中国化学工程学报（英文版）, 2022,47(7):174-184.

olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study[J]. 中国化学工程学报, 2022, 47(7): 174-184.
Shuo Li, Jianlin Cao, Xiang Feng, 等. Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study[J]. 中国化学工程学报（英文版）, 2022,47(7):174-184. DOI：

olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study[J]. 中国化学工程学报, 2022, 47(7): 174-184. DOI：

摘要

Abstract

Elucidating the confinement effect harbours tremendous significance for isobutane alkylation with C

olefin. Herein

the confinement effect over zeolite catalysts was elucidated by combining DFT calculations

experiments (using the novel Beta zeolite exposing only external surfaces (Beta-E) and conventional Beta-I zeolite with both external and internal surfaces) and multi-techniques (

TGA-DTG

HRTEM

SEM and XRD). It is found that the main active sites for C

alkylation reaction are located on internal surface rather than external surface. On the external surface

the hydride transfer reaction does not occur because the H-shared intermediate cannot be formed without the confinement effect. Moreover

the external surface has stronger selectivity for C

olefin adsorption than isobutane

leading to enhanced oligomerization reactions. Therefore

the suitable micropore with confinement effect is essential for zeolite-catalyzed C

alkylation. The atomic-scale insights of this work are of great referential importance to the design of highly effective zeolite catalyst.

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Insights into the confinement effect on isobutane alkylation with C4 olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study

Insights into the confinement effect on isobutane alkylation with C4 olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study

DOI：

摘要

Abstract

关键词

Keywords

references

Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study

Insights into the confinement effect on isobutane alkylation with C₄ olefin catalyzed by zeolite catalyst: A combined theoretical and experimental study