Microfibrous-structured hollow-ZSM-5/SS-fiber catalyst with mesoporosity development dependent lifetime improvement for MTP reaction

Jia Ding; Yingshuai Jia; Pengjing Chen; Guofeng Zhao; Ye Liu; Yong Lu

doi:10.1016/j.micromeso.2017.10.052

Microfibrous-structured hollow-ZSM-5/SS-fiber catalyst with mesoporosity development dependent lifetime improvement for MTP reaction

Jia Ding
, Yingshuai Jia
, Pengjing Chen
, Guofeng Zhao
, Ye Liu
, Yong Lu^*

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

East China Normal University

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

A promising thin-felt stainless-steel-fiber (SS-fiber) structured hollow-ZSM-5/SS-fiber catalyst is developed through alkali leaching of the full-silica core from the silicalite-1@ZSM-5/SS-fiber. A silicalite-1 seeded dry-gel/SS-fiber is obtained by dip-coating technique and is then transformed into the silicalite-1@ZSM-5/SS-fiber (overall SiO₂/Al₂O₃ molar ratio of 93) via seed-assisted dry gel conversion method. Such catalyst shows marked enhancement of mesoporosity development because of the abundant hollow structures left behind after the silicalite-1 core removal by alkali treatment in a mild Na₂CO₃ media. The effect of alkali-treated time length on catalyst structure, textural and acidic properties as well as methanol-to-propylene (MTP) performance is systematically investigated. As-obtained catalyst, with well-maintained Brönsted acid sites after alkali treatment, shows hollow-structure-dependent stability improvement in the MTP and n-hexane cracking processes due to markedly enhanced diffusion.

Original language	English
Pages (from-to)	1-8
Number of pages	8
Journal	Microporous and Mesoporous Materials
Volume	261
DOIs	https://doi.org/10.1016/j.micromeso.2017.10.052
State	Published - 1 May 2018

Keywords

Alkali treatment
Fiber
Hollow zeolite
Mesopore
Methanol-To-propylene
Structured catalyst

Access to Document

10.1016/j.micromeso.2017.10.052

Cite this

@article{d7ca43fd0ded41768c10a065ce0a7f55,

title = "Microfibrous-structured hollow-ZSM-5/SS-fiber catalyst with mesoporosity development dependent lifetime improvement for MTP reaction",

abstract = "A promising thin-felt stainless-steel-fiber (SS-fiber) structured hollow-ZSM-5/SS-fiber catalyst is developed through alkali leaching of the full-silica core from the silicalite-1@ZSM-5/SS-fiber. A silicalite-1 seeded dry-gel/SS-fiber is obtained by dip-coating technique and is then transformed into the silicalite-1@ZSM-5/SS-fiber (overall SiO2/Al2O3 molar ratio of 93) via seed-assisted dry gel conversion method. Such catalyst shows marked enhancement of mesoporosity development because of the abundant hollow structures left behind after the silicalite-1 core removal by alkali treatment in a mild Na2CO3 media. The effect of alkali-treated time length on catalyst structure, textural and acidic properties as well as methanol-to-propylene (MTP) performance is systematically investigated. As-obtained catalyst, with well-maintained Br{\"o}nsted acid sites after alkali treatment, shows hollow-structure-dependent stability improvement in the MTP and n-hexane cracking processes due to markedly enhanced diffusion.",

keywords = "Alkali treatment, Fiber, Hollow zeolite, Mesopore, Methanol-To-propylene, Structured catalyst",

author = "Jia Ding and Yingshuai Jia and Pengjing Chen and Guofeng Zhao and Ye Liu and Yong Lu",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

month = may,

day = "1",

doi = "10.1016/j.micromeso.2017.10.052",

language = "英语",

volume = "261",

pages = "1--8",

journal = "Microporous and Mesoporous Materials",

issn = "1387-1811",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microfibrous-structured hollow-ZSM-5/SS-fiber catalyst with mesoporosity development dependent lifetime improvement for MTP reaction

AU - Ding, Jia

AU - Jia, Yingshuai

AU - Chen, Pengjing

AU - Zhao, Guofeng

AU - Liu, Ye

AU - Lu, Yong

PY - 2018/5/1

Y1 - 2018/5/1

N2 - A promising thin-felt stainless-steel-fiber (SS-fiber) structured hollow-ZSM-5/SS-fiber catalyst is developed through alkali leaching of the full-silica core from the silicalite-1@ZSM-5/SS-fiber. A silicalite-1 seeded dry-gel/SS-fiber is obtained by dip-coating technique and is then transformed into the silicalite-1@ZSM-5/SS-fiber (overall SiO2/Al2O3 molar ratio of 93) via seed-assisted dry gel conversion method. Such catalyst shows marked enhancement of mesoporosity development because of the abundant hollow structures left behind after the silicalite-1 core removal by alkali treatment in a mild Na2CO3 media. The effect of alkali-treated time length on catalyst structure, textural and acidic properties as well as methanol-to-propylene (MTP) performance is systematically investigated. As-obtained catalyst, with well-maintained Brönsted acid sites after alkali treatment, shows hollow-structure-dependent stability improvement in the MTP and n-hexane cracking processes due to markedly enhanced diffusion.

AB - A promising thin-felt stainless-steel-fiber (SS-fiber) structured hollow-ZSM-5/SS-fiber catalyst is developed through alkali leaching of the full-silica core from the silicalite-1@ZSM-5/SS-fiber. A silicalite-1 seeded dry-gel/SS-fiber is obtained by dip-coating technique and is then transformed into the silicalite-1@ZSM-5/SS-fiber (overall SiO2/Al2O3 molar ratio of 93) via seed-assisted dry gel conversion method. Such catalyst shows marked enhancement of mesoporosity development because of the abundant hollow structures left behind after the silicalite-1 core removal by alkali treatment in a mild Na2CO3 media. The effect of alkali-treated time length on catalyst structure, textural and acidic properties as well as methanol-to-propylene (MTP) performance is systematically investigated. As-obtained catalyst, with well-maintained Brönsted acid sites after alkali treatment, shows hollow-structure-dependent stability improvement in the MTP and n-hexane cracking processes due to markedly enhanced diffusion.

KW - Alkali treatment

KW - Fiber

KW - Hollow zeolite

KW - Mesopore

KW - Methanol-To-propylene

KW - Structured catalyst

UR - https://www.scopus.com/pages/publications/85032682088

U2 - 10.1016/j.micromeso.2017.10.052

DO - 10.1016/j.micromeso.2017.10.052

M3 - 文章

AN - SCOPUS:85032682088

SN - 1387-1811

VL - 261

SP - 1

EP - 8

JO - Microporous and Mesoporous Materials

JF - Microporous and Mesoporous Materials

ER -

Microfibrous-structured hollow-ZSM-5/SS-fiber catalyst with mesoporosity development dependent lifetime improvement for MTP reaction

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this