NDLI: Reaction Kinetics and Mechanisms for Hydrolysis and Transesterification of Triglycerides on Tungstated Zirconia

Content Provider	Springer Nature Link
Author	Ngaosuwan, Kakwan Mo, Xunhua Goodwin, James G. Praserthdam, Piyasan
Copyright Year	2010
Abstract	Hydrolysis and transesterification are two reactions which can occur during the synthesis of biodiesel. An Investigation of the mechanistic pathways in hydrolysis and transesterification were carried out at a relatively high temperature (100–130 °C) and moderate pressures (120–180 psi) with tricaprylin and water for hydrolysis or methanol for transesterification using a tungstated zirconia catalyst in a batch reactor. It was found that upon increasing the concentration of TCp, the reaction rates for both hydrolysis and transesterification increased at all conditions. In contrast, water inhibited the reaction rate of hydrolysis by poisoning the active sites. For transesterification, the apparent reaction order of methanol evolved from positive to negative as the concentration of methanol relative to TCp increased. Using a reaction model discrimination procedure, it was found that hydrolysis on WZ could be successfully described by an Eley–Rideal single site mechanism with adsorbed TCp reacting with bulk phase water. The mechanistic pathway for transesterification also seems to follow a similar mechanism, identical to the one previously proposed for transesterification on a solid acid catalyst (SiO$_{2}$-supported Nafion-SAC-13) at lower temperature (60 °C).
Starting Page	783
Ending Page	794
Page Count	12
File Format	PDF
ISSN	10225528
Journal	Topics in Catalysis
Volume Number	53
Issue Number	11-12
e-ISSN	15729028
Language	English
Publisher	Springer US
Publisher Date	2010-04-06
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Triglycerides Tricaprylin Hydrolysis Transesterification Tungstated zirconia Biodiesel synthesis Mechanism of reaction Characterization and Evaluation of Materials Industrial Chemistry/Chemical Engineering Pharmacy Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Role of Promoters on Tungstated Zirconia Catalysts

Simultaneous Conversion of Triglyceride/Free Fatty Acid Mixtures into Biodiesel Using Sulfated Zirconia

Advancements in Heterogeneous Catalysis for Biodiesel Synthesis

Chromium promotion of tungstated zirconia catalysts for the isomerization of n-alkanes

Heterogeneous Base Catalysts for Transesterification in Biodiesel Synthesis

Hemicellulose Hydrolysis in the Presence of Heterogeneous Catalysts

Cs Promoted Triglyceride Transesterification Over MgO Nanocatalysts

Transesterification Catalysts from Iron Doped Hydrotalcite-like Precursors: Solid Bases for Biodiesel Production

Effect of tungsten loading on zirconia impregnated MCM-41 and its catalytic activity on transesterification reaction

Reaction Kinetics and Mechanisms for Hydrolysis and Transesterification of Triglycerides on Tungstated Zirconia

Similar Documents

Role of Promoters on Tungstated Zirconia Catalysts

Simultaneous Conversion of Triglyceride/Free Fatty Acid Mixtures into Biodiesel Using Sulfated Zirconia

Advancements in Heterogeneous Catalysis for Biodiesel Synthesis

Chromium promotion of tungstated zirconia catalysts for the isomerization of n-alkanes

Heterogeneous Base Catalysts for Transesterification in Biodiesel Synthesis

Hemicellulose Hydrolysis in the Presence of Heterogeneous Catalysts

Cs Promoted Triglyceride Transesterification Over MgO Nanocatalysts

Transesterification Catalysts from Iron Doped Hydrotalcite-like Precursors: Solid Bases for Biodiesel Production

Effect of tungsten loading on zirconia impregnated MCM-41 and its catalytic activity on transesterification reaction

Reaction Kinetics and Mechanisms for Hydrolysis and Transesterification of Triglycerides on Tungstated Zirconia