Conversion to aromatic hydrocarbons over nano- and micro-sized particle La/Zn/HZSM-5 catalysts

Han Gyu Kim, Yoon Cheol Yang, Kwang Eun Jeong, Tae Wan Kim, Ho Jeong Chae, Soon Yong Jeong, Chul Ung Kim, Kwan Young Lee

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The effect of the template of HZSM-5 and its synthesis method on the catalytic conversions of ethanol to aromatic hydrocarbons has been investigated over a 0.8%Zn/0.6%La/HZSM-5 (Si/Al2 = 50) catalyst in a fixed-bed flow reactor under operating conditions of T = 710 K, P = 1 bar, and WHSV = 0.8 hr-1. Nano- and micro-size HZSM-5 were prepared by hydrothermal and microwave synthesis with different templates: TPAOH, TPABr, and HMDA. Zinc and lanthanum modified HZSM-5 catalysts were prepared by a simple co-impregnation method. It was found that the size of the particles and the crystal structure of HZSM-5 were influenced by the template type and synthesis method. When using the TPAOH template, the nano-sized particles were prepared by microwave synthesis, whereas HZSM-5 prepared from TPABr and HMDA by a hydrothermal method, were composed of cubic shaped nanocrystals inside a micro-sized particle. The effect of the template on the selectivity to aromatics over a La/Zn/HZSM-5 catalyst was shown as follows: HMDA > TPABr > TPAOH.

Original languageEnglish
Pages (from-to)583-586
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume15
Issue number1
DOIs
Publication statusPublished - 2015 Jan 1

Fingerprint

Aromatic Hydrocarbons
Aromatic hydrocarbons
templates
hydrocarbons
catalysts
Catalysts
Microwaves
synthesis
Lanthanum
microwaves
Particle Size
Impregnation
Nanoparticles
Nanocrystals
Zinc
Ethanol
lanthanum
Crystal structure
beds
nanocrystals

Keywords

  • Aromatics
  • Ethanol
  • Lanthanum
  • Template
  • Zeolite
  • Zinc

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering
  • Biomedical Engineering

Cite this

Conversion to aromatic hydrocarbons over nano- and micro-sized particle La/Zn/HZSM-5 catalysts. / Kim, Han Gyu; Yang, Yoon Cheol; Jeong, Kwang Eun; Kim, Tae Wan; Chae, Ho Jeong; Jeong, Soon Yong; Kim, Chul Ung; Lee, Kwan Young.

In: Journal of Nanoscience and Nanotechnology, Vol. 15, No. 1, 01.01.2015, p. 583-586.

Research output: Contribution to journalArticle

Kim, Han Gyu ; Yang, Yoon Cheol ; Jeong, Kwang Eun ; Kim, Tae Wan ; Chae, Ho Jeong ; Jeong, Soon Yong ; Kim, Chul Ung ; Lee, Kwan Young. / Conversion to aromatic hydrocarbons over nano- and micro-sized particle La/Zn/HZSM-5 catalysts. In: Journal of Nanoscience and Nanotechnology. 2015 ; Vol. 15, No. 1. pp. 583-586.
@article{a3a8a5fb665e4dd9a6813e35bbc0bf8a,
title = "Conversion to aromatic hydrocarbons over nano- and micro-sized particle La/Zn/HZSM-5 catalysts",
abstract = "The effect of the template of HZSM-5 and its synthesis method on the catalytic conversions of ethanol to aromatic hydrocarbons has been investigated over a 0.8{\%}Zn/0.6{\%}La/HZSM-5 (Si/Al2 = 50) catalyst in a fixed-bed flow reactor under operating conditions of T = 710 K, P = 1 bar, and WHSV = 0.8 hr-1. Nano- and micro-size HZSM-5 were prepared by hydrothermal and microwave synthesis with different templates: TPAOH, TPABr, and HMDA. Zinc and lanthanum modified HZSM-5 catalysts were prepared by a simple co-impregnation method. It was found that the size of the particles and the crystal structure of HZSM-5 were influenced by the template type and synthesis method. When using the TPAOH template, the nano-sized particles were prepared by microwave synthesis, whereas HZSM-5 prepared from TPABr and HMDA by a hydrothermal method, were composed of cubic shaped nanocrystals inside a micro-sized particle. The effect of the template on the selectivity to aromatics over a La/Zn/HZSM-5 catalyst was shown as follows: HMDA > TPABr > TPAOH.",
keywords = "Aromatics, Ethanol, Lanthanum, Template, Zeolite, Zinc",
author = "Kim, {Han Gyu} and Yang, {Yoon Cheol} and Jeong, {Kwang Eun} and Kim, {Tae Wan} and Chae, {Ho Jeong} and Jeong, {Soon Yong} and Kim, {Chul Ung} and Lee, {Kwan Young}",
year = "2015",
month = "1",
day = "1",
doi = "10.1166/jnn.2015.8356",
language = "English",
volume = "15",
pages = "583--586",
journal = "Journal of Nanoscience and Nanotechnology",
issn = "1533-4880",
publisher = "American Scientific Publishers",
number = "1",

}

TY - JOUR

T1 - Conversion to aromatic hydrocarbons over nano- and micro-sized particle La/Zn/HZSM-5 catalysts

AU - Kim, Han Gyu

AU - Yang, Yoon Cheol

AU - Jeong, Kwang Eun

AU - Kim, Tae Wan

AU - Chae, Ho Jeong

AU - Jeong, Soon Yong

AU - Kim, Chul Ung

AU - Lee, Kwan Young

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The effect of the template of HZSM-5 and its synthesis method on the catalytic conversions of ethanol to aromatic hydrocarbons has been investigated over a 0.8%Zn/0.6%La/HZSM-5 (Si/Al2 = 50) catalyst in a fixed-bed flow reactor under operating conditions of T = 710 K, P = 1 bar, and WHSV = 0.8 hr-1. Nano- and micro-size HZSM-5 were prepared by hydrothermal and microwave synthesis with different templates: TPAOH, TPABr, and HMDA. Zinc and lanthanum modified HZSM-5 catalysts were prepared by a simple co-impregnation method. It was found that the size of the particles and the crystal structure of HZSM-5 were influenced by the template type and synthesis method. When using the TPAOH template, the nano-sized particles were prepared by microwave synthesis, whereas HZSM-5 prepared from TPABr and HMDA by a hydrothermal method, were composed of cubic shaped nanocrystals inside a micro-sized particle. The effect of the template on the selectivity to aromatics over a La/Zn/HZSM-5 catalyst was shown as follows: HMDA > TPABr > TPAOH.

AB - The effect of the template of HZSM-5 and its synthesis method on the catalytic conversions of ethanol to aromatic hydrocarbons has been investigated over a 0.8%Zn/0.6%La/HZSM-5 (Si/Al2 = 50) catalyst in a fixed-bed flow reactor under operating conditions of T = 710 K, P = 1 bar, and WHSV = 0.8 hr-1. Nano- and micro-size HZSM-5 were prepared by hydrothermal and microwave synthesis with different templates: TPAOH, TPABr, and HMDA. Zinc and lanthanum modified HZSM-5 catalysts were prepared by a simple co-impregnation method. It was found that the size of the particles and the crystal structure of HZSM-5 were influenced by the template type and synthesis method. When using the TPAOH template, the nano-sized particles were prepared by microwave synthesis, whereas HZSM-5 prepared from TPABr and HMDA by a hydrothermal method, were composed of cubic shaped nanocrystals inside a micro-sized particle. The effect of the template on the selectivity to aromatics over a La/Zn/HZSM-5 catalyst was shown as follows: HMDA > TPABr > TPAOH.

KW - Aromatics

KW - Ethanol

KW - Lanthanum

KW - Template

KW - Zeolite

KW - Zinc

UR - http://www.scopus.com/inward/record.url?scp=84920695998&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84920695998&partnerID=8YFLogxK

U2 - 10.1166/jnn.2015.8356

DO - 10.1166/jnn.2015.8356

M3 - Article

AN - SCOPUS:84920695998

VL - 15

SP - 583

EP - 586

JO - Journal of Nanoscience and Nanotechnology

JF - Journal of Nanoscience and Nanotechnology

SN - 1533-4880

IS - 1

ER -