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等离子催化
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  plasma catalysis
     CONVERSION OF METHANE TO C_2 HYDROCARBONS THROUGH ELECTRIC FIELD ENHANCED LOW TEMPERATURE PLASMA CATALYSIS
     电场增强低温等离子催化合成C_2烃
短句来源
     Advances in techniques, reactors and reacion mechanisms of coupling of methane under the cold plasma catalysis are described, while progresses in the studies on synergistic effect between cold plasma catalysis and chemical catalysts for coupling of methane are also detailed
     着重介绍了冷等离子体工艺技术用于甲烷偶联工艺、反应装置及反应机理的研究进展。 同时 ,也较详细地介绍了冷等离子催化与化学催化剂对甲烷偶联的协同效应的研究进展。
短句来源
  相似匹配句对
     Plasma Carbo-Nitriding
     等离子碳氮共渗
短句来源
     Plasma Carburizing
     等离子渗碳
短句来源
     Effect on non-thermal plasma assisted catalyst technology in diesel hazardous emission reduction
     非平衡等离子辅助催化对柴油机排放的影响
短句来源
     CATALYTIC TITRATION
     催化滴定
短句来源
     catalyst A340;
     催化催化 ;
短句来源
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  plasma catalysis
Results are presented from studies on plasma catalysis of the decomposition of methane into hydrogen and carbon in a repetitive microwave discharge.
      
Thus, a novel H intermediate formed by the plasma catalysis reaction may enhance the stabilization and etching role of H used in past methods.
      
Combined plasma catalysis(CPC) is an innovative way for abatement of PFC and experimental results indicated that combining plasma with catalysts could effectively remove CF4.
      
Due to the long lifetime of O3, this process is relevant for in-plasma as well as post-plasma catalysis.
      
It became obvious that additional synergetic effects can be utilised in the case of in-plasma catalysis due to short-lived species formed in the NTP.
      
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Direct conversion of natural gas to C 2 hydrocarbons through AC and DC plasmic catalysis enhanced by electric field was studied under atmospheric pressure and low power conditions The molecules of methane, after initiated in plasma, reacted with the active sites of catalyst, then ethane and ethene, etc The products were measured online by gas chromatography The effects of reaction conditions and catalyst were investigated The selectivity of C 2 hydrocarbons was above 90% in these experiments

本研究借助电场作用通过交流或直流等离子催化反应在常压、低功率下将天然气(甲烷)直接转化为碳二烃。甲烷被等离子场激活后直接和催化剂活性位作用生成乙烷、乙烯等碳二烃,由气相色谱在线分析其组成。考察了反应条件和催化剂的影响,得到了本实验较适宜反应条件下的碳二烃选择性在90%以上的结果。

Basing on the comparison of microwave heating induced catalysis and microwave plasma catalysis, a novel method to obtain high yield of C 2 hydrocarbons from methane conversion was proposed. In this process, microwave heating and microwave induced plasma are combined in the same microwave applicator, and the high power pulsed microwave is used to heat active component supported by powder or monolithic support and induce plasma on the support surface simultaneously under atmospheric pressure. C/SiC catalyst...

Basing on the comparison of microwave heating induced catalysis and microwave plasma catalysis, a novel method to obtain high yield of C 2 hydrocarbons from methane conversion was proposed. In this process, microwave heating and microwave induced plasma are combined in the same microwave applicator, and the high power pulsed microwave is used to heat active component supported by powder or monolithic support and induce plasma on the support surface simultaneously under atmospheric pressure. C/SiC catalyst was designed to meet this requirement. By this way, the limitations of independent microwave heating and microwave plasma induced methane conversion will be mostly overcome, the advantages of both processes, however, will be maintained. The optimized parameters of microwave pulse, 90% power, 1% duty and 20 s period, were confirmed through a great number of experiments. After irradiation of 400 microwave pulses with the best parameter, 65% yield of acetylene and 10% yield of ethylene have been obtained from direct conversion of methane over C/SiC catalyst. Comparing with the results obtained by use of high power pulsed microwave induced methane conversion over activated carbon powder and SiC powder respectively, it is believed that a synergetic catalysis of microwave heating microwave plasma exists in the above mentioned methane conversion process. Besides independent microwave heating induced methane conversion and microwave plasma induced methane conversion, transferring reaction, a specific manifestation of microwave heating microwave plasma interaction in synergetic catalysis, is a possible important mechanism to obtain the high yield of C 2 hydrocarbons from methane.

在高功率脉冲微波辐照下,甲烷可在常压条件下,在活性炭、碳化硅和活性炭/碳化硅等三种催化剂上直接转化为C2烃.研究结果表明,当使用合适的微波作用条件时,微波加热与微波等离子协同作用可使甲烷在多孔碳化硅担载的活性炭催化剂上以很高的转化率和选择性直接转化为乙炔.除单独的微波加热诱导作用和微波等离子催化作用外,转移反应机制可能是微波加热与微波等离子交互作用的具体表现形式,对促进甲烷向乙炔直接转化起了重要作用.

Advances in techniques, reactors and reacion mechanisms of coupling of methane under the cold plasma catalysis are described, while progresses in the studies on synergistic effect between cold plasma catalysis and chemical catalysts for coupling of methane are also detailed

着重介绍了冷等离子体工艺技术用于甲烷偶联工艺、反应装置及反应机理的研究进展。同时 ,也较详细地介绍了冷等离子催化与化学催化剂对甲烷偶联的协同效应的研究进展。

 
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