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HERO ID
2849961
Reference Type
Journal Article
Title
Oxidation characteristic and products of ETBE (ethyl tert-butyl ether)
Author(s)
Liu, X; Ito, S; Wada, Y
Year
2015
Is Peer Reviewed?
Yes
Journal
Energy
ISSN:
0360-5442
Volume
82
Page Numbers
184-192
DOI
10.1016/j.energy.2015.01.026
Web of Science Id
WOS:000351788700018
Abstract
The oxidation characteristic of ETBE (ethyl tert-butyl ether) was determined using ARC (accelerating rate calorimetry). Oxidation temperature and oxidation kinetics were calculated using temperature-time (T-t) and pressure-time (P-t) plots, and reaction products were analyzed by GC-MS (gas chromatography-mass spectrum). Results showed that the oxidation reaction process of ETBE with oxygen occurred through absorption of oxygen by ETBE, followed by thermal decomposition and oxidation reaction. The initial auto-oxidation temperature was approximately 383 K. The initial oxygen absorption kinetics was second-order, 1/P = 1.39 x 10(-7)t + 7.31 x 10(-4). The thermal decomposition kinetics of ETBE peroxides was first-order reaction, and parameters were k = A(r) x exp (E-a/RT), in (A(r)) = 85.43 (1/min), E-a = 264.9 kJ/mol. E-a was reduced when the reaction included added peroxide. Oxidation reaction products were complex, indicating a link between the products and the ETBE/O-2 ratio. Many oxidation products were formed when an excess of oxygen, such as carbon dioxide, formaldehyde, formic acid, or acetic acid was present. And the acetic acid tert-butyl ester and formic acid 1,1-dimethylethyl ester were detected in reaction product. ETBE was stable even 393 K, and exothermic reaction has not been detected even 523 K under a nitrogen atmosphere. (C) 2015 Elsevier Ltd. All rights reserved.
Keywords
ETBE (Ethyl tert-butyl ether); Oxidation; Characteristic; Thermal decomposition; Oxidation products; ARC (Accelerating rate calorimeter)
Tags
IRIS
•
ETBE
Combined Dataset (After duplicates removed electronically)
Excluded / Not on Topic
Chemical analysis/fuel chemistry
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