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- Title
Synthesis of dodecylbenzene via the alkylation of benzene and 1‐dodecene over mesopore Beta zeolites.
- Authors
Liu, Baoyu; Lu, Weijian; Liu, Yikuan; Feng, Qilong; Huang, Yi; Shang, Jin; Zhu, Yihan; Dong, Jinxiang
- Abstract
The alkylation of benzene with long chain α‐olefins is a crucial process in the production of fine chemicals, which requires the upgrading from traditional homogeneous catalysis to heterogeneous catalysis involving zeolites. However, the application of zeolite catalysts has been limited by their fast deactivation due to constrained diffusion resulting from the sole micropores. To address this challenge, a desilication and secondary‐crystallization strategy has been employed to fabricate hierarchically structured mesoporous Beta zeolites. The resultant mesoporous Beta zeolites demonstrate excellent catalytic activity and stability in the alkylation of benzene with 1‐dodecene, arising from the exposed acid sites and enhanced internal diffusion. Importantly, the internal diffusion limitations for these mesopore Beta zeolites are negligible, which significantly extends their lifetime and improves their regeneration performance. To achieve these benefits, the degree of mesopores must be deliberately controlled. Overall, this approach provides a promising solution for achieving efficient and environmentally friendly alkylation processes.
- Subjects
ALKYLATION; HETEROGENEOUS catalysis; HOMOGENEOUS catalysis; ZEOLITE catalysts; BENZENE; ZEOLITES; CATALYST poisoning
- Publication
AIChE Journal, 2023, Vol 69, Issue 11, p1
- ISSN
0001-1541
- Publication type
Article
- DOI
10.1002/aic.18201