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Title:PYROLYSIS OF ETHYL ESTERS IN A MICRO-REACTOR
Author(s):Ellison, Barney
Contributor(s):Labbe, Nicole ; Daily, John W; Porterfield, Jessie P; Rogers, Cory
Subject(s):Dynamics and kinetics
Abstract:The nascent steps in the pyrolysis of ethyl esters have been studied in a set of heated micro-reactors. We have examined the thermal decomposition of ethyl propionate, \ce{CH3CH2COOCH2CH3}, a model for biofuels. The micro-reactors are small (roughly 1\,mm ID x 3\,cm long) silicon carbide tubes; transit times through the reactors are about 100\,$\mu$sec. Temperatures in the micro-reactors can be as high as 1700\,K and pressures are typically 100\,Torr. The products of pyrolysis are identified by a combination of 118.2\,nm photoionization mass spectrometry and matrix isolation infrared absorption spectroscopy. We find there are two major pathways for ethyl propionate decomposition. These are: \ce{CH3CH2COOCH2CH3 -> CH3CH2COOH + CH2=CH2} and \ce{CH3CH2COOCH2CH3 -> CH3CH=C=O + CH3CH2OH}. The nascent pyrolysis products undergo further, extensive fragmentation in the reactor.
Issue Date:2019-06-18
Publisher:International Symposium on Molecular Spectroscopy
Genre:Conference Paper / Presentation
Type:Text
Language:English
URI:http://hdl.handle.net/2142/104406
DOI:10.15278/isms.2019.TF07
Rights Information:Copyright 2019 Barney Ellison
Date Available in IDEALS:2019-07-15
2020-01-25


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