Hydroperoxide Formation and Thermal Stability of Ethyl t-Butyl Ether Oxidation
| Autor: | Bo Wang, Qiang Zhang, Xiao-Di Zhou, Yan-Fei Zheng, Fang Lai, Li Ma, Xiong-Min Liu |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
020209 energy
General Chemical Engineering Thermal decomposition Analytical chemistry Energy Engineering and Power Technology Ether 02 engineering and technology Mass spectrometry Isothermal process chemistry.chemical_compound Fuel Technology Column chromatography Differential scanning calorimetry chemistry 0202 electrical engineering electronic engineering information engineering Thermal stability Fourier transform infrared spectroscopy |
| Zdroj: | Energy & Fuels. 31:8162-8170 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/acs.energyfuels.7b00607 |
| Popis: | A customer-designed mini closed pressure vessel test (MCPVT) consisting of a pressure sensor and a temperature sensor connected to recorder was applied to evaluate the isothermal stability along with the formation of hydroperoxide in the ethyl t-butyl ether (ETBE) oxidation process at low temperatures. A new type of hydroperoxide, named 1-tert-butoxy-ethyl hydroperoxide (TBEHP), was separated from ETBE oxidation products via column chromatography, which was further characterized by mass spectrometry (MS), 1H and 13C nuclear magnetic resonance (NMR), and Fourier transform infrared spectroscopy (FTIR). The thermal characteristics of TBEHP were assessed via differential scanning calorimetry (DSC). Results showed that the exothermic onset temperature (T0) and thermal decomposition heat (QDSC) of TBEHP were 99.12 °C and 1523.89 J·g–1, respectively. Moreover, a jet-stirred reactor (vessel volume: 500 mL) was used to evaluate the explosive risk of ETBE oxidation. The corresponding result indicated that detonatio... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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