Thermolysis of 1,3-dioxin-4-ones: fast generation of kinetic data using in-line analysis under flow
Thermolysis of 1,3-dioxin-4-ones: fast generation of kinetic data using in-line analysis under flow
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1,3-二恶英-4-酮的热解:使用流动下在线分析快速生成动力学数据
DOI:
10.1039/c5re00007f
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发表时间:
2016
影响因子:
3.9
通讯作者:
Durand T
中科院分区:
文献类型:
--
作者:
Durand T
Rapid acquisition of kinetic data is demonstrated with a commercial meso-scale flow reactor, using a step-change in flow rate or ‘push-out’ from the flow line. For thermolysis of 1,3-dioxin-4-ones (1), we obtain excellent reproducibility in the activation energies measured from spectroscopic data collected by in-line UV or transmission FT-IR monitoring of the output during the transitional period between two flow rates (±3 kJ mol−1, 0.7 kcal mol−1). Analysis of multi-component UV and IR data is conducted using an orthogonal projection approach (multivariate curve resolution by alternating least squares) for complex spectra, or by calibration-less integration of non-overlapping peak absorbance. All analysis methods were validated using off-line 1H NMR analysis, and kinetic parameters obtained using the method of a flow rate step-change were validated against conventional steady-state measurements in which time-series data were acquired across multiple experiments. Thermal transfer and dispersion effects are addressed. The experimental methods described herein are valuable for accelerated reaction study and in process development.
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影响因子:
15
作者:
Sergey Mozharov;A. Nordon;D. Littlejohn;C. Wiles;P. Watts;Paul H. Dallin;J. Girkin
通讯作者:
Sergey Mozharov;A. Nordon;D. Littlejohn;C. Wiles;P. Watts;Paul H. Dallin;J. Girkin
影响因子:
15
作者:
HUCKIN, SN;WEILER, L
通讯作者:
WEILER, L
影响因子:
4.3
作者:
S. Gourvénec;D. Massart
通讯作者:
D. Massart
DOI:
--
发表时间:
2002
期刊:
In Analysis
影响因子:
--
作者:
T. J. Thurston;R. Brereton
通讯作者:
R. Brereton
影响因子:
15
作者:
Song, H;Ismagilov, RF
通讯作者:
Ismagilov, RF