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author:

Dong, Peng (Dong, Peng.) [1] | Wu, Huanliu (Wu, Huanliu.) [2] | Luo, Longhua (Luo, Longhua.) [3] | Cui, Qingyan (Cui, Qingyan.) [4] (Scholars:崔勍焱) | Li, Tiesen (Li, Tiesen.) [5] (Scholars:李铁森) | Shi, Jie (Shi, Jie.) [6] | Yue, Yuanyuan (Yue, Yuanyuan.) [7] (Scholars:岳源源)

Indexed by:

EI Scopus SCIE

Abstract:

A low-cost and process-intensified synthesis approach of SSZ-35 zeolite via a seed-assisted method is presented. This approach involves the development of a relatively inexpensive template and the application of seeds to minimize crystallization time and template consumption. Herein, N-Ethyl, N-methyl 2,6-cis-dimethylpiperidinium hydroxide (EMDMPOH) is selected as a template to synthesize SSZ-35 zeolite, and a simplified and optimized scheme for the preparation of such a template is proposed. Specially, the high-purity EMDMPOH is prepared by a sequential alkylation of 2,6-dimethylpiperidine with iodoethane and iodomethane, followed by ion exchange. By employing a seed-assisted strategy, the synthesis process of SSZ-35 zeolite is intensified, resulting in a significant reduction in crystallization time from 7 d to 75 h. Systematic characterizations reveal that the synthesized SSZ-35 zeolite has smaller crystals and larger specific surface area in comparison with the reference sample, leading to enhanced selectivity in n-octane hydroisomerization. Moreover, the cost accounting analysis shows a notable decrease in the synthesis cost of SSZ-35 zeolite by using the synthesis route that combines the simplified process for preparing the template and the reduced amount of template.

Keyword:

Crystallization intensification Low-cost synthesis Seed-assisted method SSZ-35 zeolite

Community:

  • [ 1 ] [Dong, Peng]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China
  • [ 2 ] [Li, Tiesen]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China
  • [ 3 ] [Shi, Jie]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China
  • [ 4 ] [Yue, Yuanyuan]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China
  • [ 5 ] [Wu, Huanliu]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China
  • [ 6 ] [Luo, Longhua]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China
  • [ 7 ] [Cui, Qingyan]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China
  • [ 8 ] [Li, Tiesen]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China
  • [ 9 ] [Yue, Yuanyuan]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • [Shi, Jie]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China;;[Yue, Yuanyuan]Qingyuan Innovat Lab, Quanzhou 362801, Fujian, Peoples R China;;[Yue, Yuanyuan]Fuzhou Univ, Coll Chem Engn, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China;;

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Source :

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION

ISSN: 0255-2701

Year: 2025

Volume: 208

3 . 8 0 0

JCR@2023

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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