Nature gas is not only an increasing important role in energy and chemicals supplies in 21st century but also the second most important of the anthropogenic greenhouse gases. This paper reviewed the plasma technology ...Nature gas is not only an increasing important role in energy and chemicals supplies in 21st century but also the second most important of the anthropogenic greenhouse gases. This paper reviewed the plasma technology application in natural gas chemical engineering, pointed out the problem at present and forecasted plasma concerted catalysis technology will facilitate the nature gas directly conversion into more valuable chemicals supplies economically in short after time.展开更多
The characteristics of low pressure plasma produced by a gas discharges lie in thatthe energy of the electrons are much higher than that of the heavy particles in the system. Inthis paperl the low-pressure plasma trea...The characteristics of low pressure plasma produced by a gas discharges lie in thatthe energy of the electrons are much higher than that of the heavy particles in the system. Inthis paperl the low-pressure plasma treatment technology for the environmental contaminantswas synthetically studied, and the reaction processing and mechanism between the low-pressureplasma and the environmental contaminants were theoretically analyzed. At last, the prospectsand existing problems on the application of low-pressure plasma in the field of environmentalprotection were discussed.展开更多
TiN/Ti multi-permeating alloying layer has been formed on the low carbon steel by means of the double glow-discharge plasma surface alloying technique and hollow-cathode effect. The alloying layer was detected by axio...TiN/Ti multi-permeating alloying layer has been formed on the low carbon steel by means of the double glow-discharge plasma surface alloying technique and hollow-cathode effect. The alloying layer was detected by axiovert 25 CA optical microscope with computer analyzing software （LEC）, GDA-2 glow discharge spectroscopy （GDS）, X-ray diffraction （XRD） and galvanochemical method. The results showed that the thickness of TiN/Ti multi-permeating alloying layer was about 10μm, the content of Ti on the surface was up to 63.48 wt% and the content of N was up to 12.46 wt%. The atom Ti and N concentrations changed gradually across the depth of the alloying layer and the preferred orientation of TiN/Ti alloying layer was crystal surface （200）. The multi-permeating alloying layer and substrate were combined through metallurgy. The surface appearances of the multi-permeating alloying layer were uniform and of a compact cellular structure. The hardness of the surface was about 1600-3000 HV0.1. The corrosion resistance of the permeating TiN/Ti alloying layer in 0.5 mol/L H2SO4 solution was greatly increased and the corrosion rate was only 0.3082 g/m^2. h.展开更多
Advisory Board （Arranged in alphabetical order）,GE Changchun/（葛昌纯）, University of Science and Technology Beijing, Beijing 100083, China,HE Xiantu（贺贤士）Institute of Applied Physics and Computational Mathemat...Advisory Board （Arranged in alphabetical order）,GE Changchun/（葛昌纯）, University of Science and Technology Beijing, Beijing 100083, China,HE Xiantu（贺贤士）Institute of Applied Physics and Computational Mathematics, Beijing 100088, China,HUO Yuping（霍裕平）Zhengzhou University, Zhengzhou 450052, China .展开更多
基金Supported by the National Natural Science Foundation of China
文摘Nature gas is not only an increasing important role in energy and chemicals supplies in 21st century but also the second most important of the anthropogenic greenhouse gases. This paper reviewed the plasma technology application in natural gas chemical engineering, pointed out the problem at present and forecasted plasma concerted catalysis technology will facilitate the nature gas directly conversion into more valuable chemicals supplies economically in short after time.
文摘The characteristics of low pressure plasma produced by a gas discharges lie in thatthe energy of the electrons are much higher than that of the heavy particles in the system. Inthis paperl the low-pressure plasma treatment technology for the environmental contaminantswas synthetically studied, and the reaction processing and mechanism between the low-pressureplasma and the environmental contaminants were theoretically analyzed. At last, the prospectsand existing problems on the application of low-pressure plasma in the field of environmentalprotection were discussed.
基金supported by National Natural Science Foundation of China (No. 50374054)the Natural Science Foundation of Shanxi Province (No. 20031050)
文摘TiN/Ti multi-permeating alloying layer has been formed on the low carbon steel by means of the double glow-discharge plasma surface alloying technique and hollow-cathode effect. The alloying layer was detected by axiovert 25 CA optical microscope with computer analyzing software （LEC）, GDA-2 glow discharge spectroscopy （GDS）, X-ray diffraction （XRD） and galvanochemical method. The results showed that the thickness of TiN/Ti multi-permeating alloying layer was about 10μm, the content of Ti on the surface was up to 63.48 wt% and the content of N was up to 12.46 wt%. The atom Ti and N concentrations changed gradually across the depth of the alloying layer and the preferred orientation of TiN/Ti alloying layer was crystal surface （200）. The multi-permeating alloying layer and substrate were combined through metallurgy. The surface appearances of the multi-permeating alloying layer were uniform and of a compact cellular structure. The hardness of the surface was about 1600-3000 HV0.1. The corrosion resistance of the permeating TiN/Ti alloying layer in 0.5 mol/L H2SO4 solution was greatly increased and the corrosion rate was only 0.3082 g/m^2. h.
文摘ABBAS, Ghasemizad （6）： 506 ABBASI, Vahid （6）： 586 ABDELMALEK, Fatiha （9）： 915 ABDOLAHI, Z. （1）： 37 ABHANGI, Mitul （2）： 166 ADDOU, Ahmed （9）： 915 AFZAL, H. （9）： 900 AGAH, K. Mikaili （5）： 485 AHMAD, M. A. （9）： 881 AHMAD. R. （7）： 666AI, Qi （8）： 791 AJAI KUMAR, （3）： 204 ALAGOZ, B. B. （10）： 1012 ALAGOZ, S. （10）： 1012 ALISOY, G. T. （10）： 1012
文摘Advisory Board （Arranged in alphabetical order）,GE Changchun/（葛昌纯）, University of Science and Technology Beijing, Beijing 100083, China,HE Xiantu（贺贤士）Institute of Applied Physics and Computational Mathematics, Beijing 100088, China,HUO Yuping（霍裕平）Zhengzhou University, Zhengzhou 450052, China .
