Robin, T, Jones, JM orcid.org/0000-0001-8687-9869 and Ross, AB (2017) Catalytic hydrothermal processing of lipids using metal doped zeolites. Biomass and Bioenergy, 98. pp. 26-36. ISSN 0961-9534
Abstract
A range of vegetable oils with different lipid compositions have been processed under hydrothermal conditions in the presence of transition metal doped zeolites (containing molybdenum, chromium, cobalt and iron). The lipids processed include sunflower, soybean, jatropha, palm and linseed oils over a temperature and pressure range of 250–350 °C and 12–17 MPa respectively. The products have been analyzed using a combination of GC-MS, FAME analysis, size exclusion chromatography (SEC), and simulated distillation (using thermogravimetric analysis TGA). Hydrothermal processing of lipids results in the hydrolysis of the triglycerides at low temperatures. Lipids high in polyunsaturated fatty acids such as linoleic and linolenic acid promote cross linking and cyclization reactions resulting in “heavier molecular weight” wax-like material. Saturated fatty acids such as palmitic and stearic acids are more stable. Some of the catalysts, such as un-doped zeolite (HZSM-5) and molybdenum doped zeolite (MoZSM-5) favor the formation of alkenes and aromatic compounds in the kerosene and gasoline boiling point range.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2017 Published by Elsevier Ltd. This is an author produced version of a paper published in Biomass and Bioenergy. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Hydrothermal processing; Catalysis; HZSM-5; Lipids; Fatty acids |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemical & Process Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Jan 2017 10:52 |
Last Modified: | 13 Jan 2018 01:38 |
Published Version: | https://doi.org/10.1016/j.biombioe.2017.01.012 |
Status: | Published |
Publisher: | Elsevier |
Identification Number: | 10.1016/j.biombioe.2017.01.012 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:110840 |