中国科技论文在线

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2007年09月13日

【期刊论文】Low-temperature plasma-catalytic oxidation of formaldehyde in atmospheric pressure gas streams

朱爱民， Hui-Xian Ding，， Ai-Min Zhu， Fu-Gong Lu， Yong Xu， Jing Zhang and Xue-Feng Yang

J. Phys. D: Appl. Phys. 39 (2006) 3603-3608，-0001，（）：

-1年11月30日

Formaldehyde (HCHO) is a typical air pollutant capable of causing serious health disorders in human beings. This work reports plasma-catalytic oxidation of formaldehyde in gas streams via dielectric barrier discharges over Ag/CeO2 pellets at atmospheric pressure and 70◦C. With a feed gas mixture of 276 ppm HCHO, 21.0% O2, 1.0% H2O in N2, ～99% of formaldehyde can be effectively destructed with an 86% oxidative conversion into CO2 at GHSV of 16500 h−1 and input discharge energy density of 108 J l−1. At the same experimental conditions, the conversion percentages of HCHO to CO2 from pure plasma-induced oxidation (discharges over fused silica pellets) and from pure catalytic oxidation over Ag/CeO2 (without discharges) are 6% and 33% only. The above results and the CO plasma-catalytic oxidation experiments imply that the plasma-generated short-lived gas phase radicals, such as O and HO2, play important roles in the catalytic redox circles of Ag/CeO2 to oxidize HCHO and CO to CO2.

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2007年09月13日

【期刊论文】High Yield of Aromatics from CH4 in a Plasma-Followed-by-Catalyst (PFC) Reactor

朱爱民， Xiao-Song Li， Chuan Shi， Kang-Jun Wang， Xiu-Ling Zhang， Yong Xu， and Ai-Min Zhu

AIChE Journal September 2006, Vol. 52, No. 9，-0001，（）：

-1年11月30日

摘要

plasma-catalytic reactor， methane conversion， aromatics， hydrogen， Ni/， HZSM-5 catalyst

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2007年09月13日

【期刊论文】Formation of NOx from N2 and O2 in catalyst-pellet filled dielectric barrier discharges at atmospheric pressure

朱爱民， Qi Sun， Aimin Zhu，， Xuefeng Yang， Jinhai Niu and Yong Xua

CHEM. COMMUN., 2003, 1418-1419，-0001，（）：

-1年11月30日

摘要

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2007年09月13日

【期刊论文】Crystalline, Uniform-Sized TiO2 Nanosphere Films by a Novel Plasma CVD Process at Atmospheric Pressure and Room Temperature

朱爱民， By Ai-Min Zhu， Long-Hui Nie， Qing-Hao Wu， Xiu-Ling Zhang， Xue-Feng Yang， Yong Xu， and Chuan Shi

Chem. Vap. Deposition 2007, 13, 141-144，-0001，（）：

-1年11月30日

摘要

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2007年09月13日

【期刊论文】Coupling of methane under pulse corona plasma (I)—— In the absence of oxygen

朱爱民， ZHU Aimin， GONG Weimin， ZHANG Xiuling & ZHANG Baoan

SCIENCE IN CHINA (Series B) April., 2000, Vol. 43, No. 2，-0001，（）：

-1年11月30日

摘要

At normal temperature and pressure, pulse corona plasma was used as a new method for the dehydrogenative coupling of methane in the absence of oxygen. The effects of voltage polarity and input energy on the dehydrogenative coupling of methane were investigated. The parameter “energy efficiency” was introduced to examine the coupling of the input energy and the dehydrogenative coupling of methane. The experimental results show that positive corona gives higher energy efficiency than negative corona. When the positive corona was chosen, C2 yield per pass was 31.6% and acetylene yield per pass was 30.1% with 44.6% methane conversion at an input energy density of 1788kJ/mol and a pulse repetition frequency of 66Hz. The function of input energy density towards methane conversion may be expressed as a formula of –ln (1-X) = k (P/F). In the range of input energy employed, C2 yield is proportional to input energy density, but energy efficiency drops off with increasing input energy density.

dehydrogenative coupling of methane， pulse corona plasma， energy efficiency

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