skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol

Abstract

Basic zeolite has received significant attention in the catalysis community. These zeolites modified with alkaline are the potential replacement for existing zeolite catalysts due to its unique features with added advantages. The present paper covers the preparation of lithium modified zeolite Y (Li-ZeY) and its activity for solvent free conversion of biodiesel-derived glycerol to polyglycerol via etherification process. The modified zeolite was well characterized by X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Nitrogen Adsorption. The SEM images showed that there was no change in morphology of modified zeolite structure after lithium modification. XRD patterns showed that the structure of zeolite was sustained after lithium modification. The surface properties of parent and modified zeolite was also observed N{sub 2} adsortion-desorption technique and found some changes in surface area and pore size. In addition, the basic strength of prepared materials was measured by Hammet indicators and found that basic strength of Li-ZeY was highly improved. This modified zeolite was found highly thermal stable and active heterogamous basic catalyst for conversion of solvent free glycerol to polyglycerol. This reaction was conducted at different temperatures and 260 °C was found most active temperature for this process for reaction time from 6 to 12more » h over this basic catalyst in the absence of solvent.« less

Authors:
 [1];  [2]
  1. Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750, Tronoh, Perak, Malaysia and School of Chemical Engineering, Universiti Sains Malaysia, 43000, Pinang (Malaysia)
  2. Department of Chemical Engineering, Universiti Teknologi PETRONAS, 31750, Tronoh, Perak (Malaysia)
Publication Date:
OSTI Identifier:
22308885
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1621; Journal Issue: 1; Conference: ICSAS 2014: 3. international conference on fundamental and applied sciences: Innovative research in applied sciences for a sustainable future, Kuala Lumpur (Malaysia), 3-5 Jun 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ADSORPTION; BIODIESEL FUELS; CATALYSIS; CATALYSTS; DESORPTION; GLYCEROL; LITHIUM; NITROGEN; SCANNING ELECTRON MICROSCOPY; SOLVENTS; SURFACE AREA; SYNTHESIS; X-RAY DIFFRACTION; ZEOLITES

Citation Formats

Ayoub, Muhammad, Abdullah, Ahmad Zuhairi, E-mail: chzuhairi@usm.my, and Inayat, Abrar. Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol. United States: N. p., 2014. Web. doi:10.1063/1.4898444.
Ayoub, Muhammad, Abdullah, Ahmad Zuhairi, E-mail: chzuhairi@usm.my, & Inayat, Abrar. Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol. United States. https://doi.org/10.1063/1.4898444
Ayoub, Muhammad, Abdullah, Ahmad Zuhairi, E-mail: chzuhairi@usm.my, and Inayat, Abrar. 2014. "Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol". United States. https://doi.org/10.1063/1.4898444.
@article{osti_22308885,
title = {Lithium modified zeolite synthesis for conversion of biodiesel-derived glycerol to polyglycerol},
author = {Ayoub, Muhammad and Abdullah, Ahmad Zuhairi, E-mail: chzuhairi@usm.my and Inayat, Abrar},
abstractNote = {Basic zeolite has received significant attention in the catalysis community. These zeolites modified with alkaline are the potential replacement for existing zeolite catalysts due to its unique features with added advantages. The present paper covers the preparation of lithium modified zeolite Y (Li-ZeY) and its activity for solvent free conversion of biodiesel-derived glycerol to polyglycerol via etherification process. The modified zeolite was well characterized by X-ray diffraction (XRD), Scanning Electron Microscope (SEM) and Nitrogen Adsorption. The SEM images showed that there was no change in morphology of modified zeolite structure after lithium modification. XRD patterns showed that the structure of zeolite was sustained after lithium modification. The surface properties of parent and modified zeolite was also observed N{sub 2} adsortion-desorption technique and found some changes in surface area and pore size. In addition, the basic strength of prepared materials was measured by Hammet indicators and found that basic strength of Li-ZeY was highly improved. This modified zeolite was found highly thermal stable and active heterogamous basic catalyst for conversion of solvent free glycerol to polyglycerol. This reaction was conducted at different temperatures and 260 °C was found most active temperature for this process for reaction time from 6 to 12 h over this basic catalyst in the absence of solvent.},
doi = {10.1063/1.4898444},
url = {https://www.osti.gov/biblio/22308885}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1621,
place = {United States},
year = {Fri Oct 24 00:00:00 EDT 2014},
month = {Fri Oct 24 00:00:00 EDT 2014}
}