Hydrothermal gasification of pure and crude glycerol in supercritical water: A comparative study

Title
Hydrothermal gasification of pure and crude glycerol in supercritical water: A comparative study
Author
상병인
Keywords
Hydrogen; Crude glycerol; Supercritical water; FAMEs; Batch system; Continuous system; HOT COMPRESSED WATER; BIOMASS GASIFICATION; HYDROGEN-PRODUCTION; BIODIESEL PRODUCTION; MODEL COMPOUNDS; COKE FORMATION; HEATING RATE; GLUCOSE; PYROLYSIS; PRODUCTS
Issue Date
2014-01
Publisher
PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND
Citation
International Journal of Hydrogen Energy, Vol 39, No 3, 16 January 2014, Pages 1262-1273
Abstract
A comparative gasification study between pure glycerol and two different kinds of crude glycerol is conducted in supercritical water under various operating parameters to investigate the effect of different compositions in crude glycerol on the gasification behaviors. Among various types of impurities in the crude glycerol, fatty acid methyl esters (FAMEs) exhibit a negative effect on the gas yield and gasification efficiency of crude glycerol in a batch apparatus due to the enhanced tar/char formation. At 650 degrees C and 5 wt%, gasification in a continuous apparatus exhibits H-2 yields of 26.44 and 35.85 mmol/g feed in 1 min for both types of crude glycerol, which could not be achieved by the batch system even with the reaction time extended up to 120 min. A shorter duration in the non-supercritical state may be the dominant parameter that leads to complete conversion of FAMEs and total gasification of crude glycerol using the continuous system. Crown Copyright (C) 2013, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S0360319913026542http://hdl.handle.net/20.500.11754/47485
ISSN
0360-3199
DOI
10.1016/j.ijhydene.2013.10.139
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > CHEMICAL ENGINEERING(화학공학과) > Articles
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