Plasma synthesis of ammonia with a microgap dielectric barrier discharge at ambient pressure

Bai, Mei; Zhang, Zhitao; Bai, Xiyao; Bai, M.; Wang, Weining

doi:10.1109/tps.2003.818761

Cited by 116 publications

(63 citation statements)

References 15 publications

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“…Gómez-Ramírez et al [110] found that the best energy efficiency was achieved with the feed gas ratio equal or close to the stoichiometric ratio. This conclusion is in line with many previously reported researches [110][111][112][113][114]. On the other hand, other studies have shown that a higher N 2 /H 2 is favoured for the ammonia production [107,112,[115][116][117][118][119].…”

Section: Direct Synthesis Of Ammonia From N 2 and Hsupporting

confidence: 92%

Recent Progress of Plasma-Assisted Nitrogen Fixation Research: A Review

et al. 2018

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Nitrogen is an essential element to plants, animals, human beings and all the other living things on earth. Nitrogen fixation, which converts inert atmospheric nitrogen into ammonia or other valuable substances, is a very important part of the nitrogen cycle. The Haber-Bosch process plays the dominant role in the chemical nitrogen fixation as it produces a large amount of ammonia to meet the demand from the agriculture and chemical industries. However, due to the high energy consumption and related environmental concerns, increasing attention is being given to alternative (greener) nitrogen fixation processes. Among different approaches, plasma-assisted nitrogen fixation is one of the most promising methods since it has many advantages over others. These include operating at mild operation conditions, a green environmental profile and suitability for decentralized production. This review covers the research progress in the field of plasma-assisted nitrogen fixation achieved in the past five years. Both the production of NOx and the synthesis of ammonia are included, and discussion on plasma reactors, operation parameters and plasma-catalysts are given. In addition, outlooks and suggestions for future research are also given.

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Section: Direct Synthesis Of Ammonia From N 2 and Hsupporting

confidence: 92%

Recent Progress of Plasma-Assisted Nitrogen Fixation Research: A Review

et al. 2018

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“…Nonequilibrium plasmas which operate at ambient temperature are widely investigated as a promising alternative to produce ammonia from N 2 -H 2 mixture via NH radicals. Synthesis of ammonia has been reported for glow discharge plasmas [93,94], microwave plasma [95][96][97][98], radio frequency plasma [95,99], Electron Cyclone Resonance [100], dielectric barrier discharge plasma [101][102][103] and Expanding plasma [104] reactors. These studies have been summarized in Table 4.…”

Section: Plasma Ammonia Synthesismentioning

confidence: 99%

“…Bai et al [101] used a micro gap dielectric barrier discharge to synthesize ammonia at ambient pressure. The discharge gap was 0.47 mm between the discharge electrodes.…”

Section: Plasma Ammonia Synthesismentioning

confidence: 99%

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Plasma N2-fixation: 1900–2014

et al. 2015

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“…In micro-gap discharge method, (7,8) a strong electric field (E d 400 Td, 1Td = 10 −17 Vcm 2 ) is formed using a thin α-Al 2 O 3 dielectric layer at high pressure (P 0.1 Mpa or n = 2.6 × 10 19 /cm 3 ). Large numbers of OH • radicals are produced by the ionization of O 2 and H 2 O, which are successfully used in the killing of invasive marine species in ship's ballast water.…”

Section: Introductionmentioning

confidence: 99%

Treatment of Red Tide in Ocean Using Non-Thermal Plasma Based Advanced Oxidation Technology*

Bai

Zhang

et al. 2005

Plasma Chem Plasma Process

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A Pilot-scale experiment for the treatment of red tide in the enclosure was done in sea area of Shandong Province, P.R. China on Aug. 25, 2002. With the method of micro-gap discharge, O 2 in air and H 2 O in seawater are ionized and dissociated into large numbers of OH • radicals, and then dissolved into a part of seawater to form OH • solution of high concentration. With OH • concentration of 0.68 mg/L, the kill efficiencies of 29 kinds of red tide organisms such as Chaetoceros lorenzianus and so on reached 99.89%, in which bacterium and vibrio were reduced below the detection limit, also Gonyaulax cysts and Prei. Cysts with the crust were done the lowest limit of test. At the same time, the content of chlorophyll-a was decreased below the detection limit. DO (dissolved oxygen) saturation of seawater was greatly increased to 100% because the residual OH • radical was decomposed into H 2 O and O 2 after 20 min. Therefore the treatment of red tide using OH • radicals is a kind of advanced oxidation technology, which realizes zero pollution, zero emission and zero residual in the process of the production of OH • radicals and the treatment of red tide.

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Plasma synthesis of ammonia with a microgap dielectric barrier discharge at ambient pressure

Cited by 116 publications

References 15 publications

Recent Progress of Plasma-Assisted Nitrogen Fixation Research: A Review

Recent Progress of Plasma-Assisted Nitrogen Fixation Research: A Review

Plasma N2-fixation: 1900–2014

Treatment of Red Tide in Ocean Using Non-Thermal Plasma Based Advanced Oxidation Technology*

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