Detailed Characterization of 2-Heptanone Conversion by Dielectric Barrier Discharge in N2 and N2/O2 Mixtures

被引：28

作者：

Chiper, Alina Silvia ^{[2
]}

Blin-Simiand, Nicole ^{[1
]}

Heninger, Michel ^{[3
]}

Mestdagh, Helene ^{[4
]}

Boissel, Pierre ^{[3
]}

Jorand, Francois ^{[1
]}

Lemaire, Joel ^{[4
]}

Leprovost, Julien ^{[3
]}

Pasquiers, Stephane ^{[1
]}

Popa, Gheorghe ^{[2
]}

Postel, Christian ^{[1
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8578, Phys Gaz & Plasmas Lab, F-91405 Orsay, France

[2] Alexandru Ioan Cuza Univ, Fac Phys, Dept Plasma Phys, Iasi 700506, Romania

[3] Univ Paris 11, AlyXan, F-91405 Orsay, France

[4] Univ Paris 11, CNRS, UMR 8000, Chim Phys Lab, F-91405 Orsay, France

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2010年 / 114卷 / 01期

关键词：

VOLATILE ORGANIC-COMPOUNDS; ION FLOW TUBE; PROTON-TRANSFER-REACTION; MASS-SPECTROMETRY; GAS-PHASE; REMOVAL EFFICIENCY; ALIPHATIC-KETONES; KINETIC DATA; AIR; ACETALDEHYDE;

D O I：

10.1021/jp907295d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The products of 2-heptanone conversion by dielectric barrier discharge plasma are analyzed under different conditions: alternating current (ac) or pulsed mode of excitation, variable energy, variable composition of the carrier gas. The efficiency of the conversion is higher using a pulse excitation mode than an ac mode. With a small oxygen percentage (about 2-3%) added to nitrogen, 2-heptanone is about 30% more efficiently removed than in pure nitrogen, while the 2-heptanone removal decreases with an oxygen percentage higher than 3%. A new analysis method, based on chemical ionization mass spectrometry, is used for volatile organic compound detection along with chromatography. Several products issued from 2-heptanone conversion with ac excitation are identified in nitrogen and in air, and a chemical scheme is proposed to explain their formation and their treatment by the discharge. It appears that byproducts are issued not only from oxidation reactions, but also from C-C bond cleavage by collisions with electrons or nitrogen excited states.

引用

页码：397 / 407

页数：11

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[41] PARAMETRIZATION OF THE ION-POLAR MOLECULE COLLISION RATE-CONSTANT BY TRAJECTORY CALCULATIONS [J].