Experimental studies on the plasma-chemical synthesis of a catalyst for natural gas reforming

Plasma-catalytic reforming of methane in AC microsized gliding arc discharge: Effects of input power, reactor thickness, and catalyst existence

“…Interestingly, numerous investigations have focused on upgrading the conversion process of methane (CH 4 ), which is a main constituent in natural gas in all reserves around the world, to produce higher value-added chemicals by reforming reactions. Non-thermal plasma has reportedly been used for several chemical conversion processes, also involving either non-oxidative methane reforming [1][2][3][4][5][6][7], oxidative methane reforming [8][9][10][11][12][13][14][15], or hybrid plasma-catalytic methane reforming [16][17][18][19][20][21][22][23][24][25][26][27][28][29]. Due to its non-equilibrium property, nonthermal plasma, with high-energy electrons, creates principally a large number of chemically active species through electronic and ionic collision processes, and then immediately induces subsequent chemical reactions under ambient temperature and atmospheric pressure.…”

Non-Oxidative Reforming of Methane in a Mini-Gliding Arc Discharge Reactor: Effects of Feed Methane Concentration, Feed Flow Rate, Electrode Gap Distance, Residence Time, and Catalyst Distance

“…Additionally, CH 4 molecules may crack to form carbon and H 2 molecules via the cracking reaction under the plasma environment, as shown in (20).…”

“…This leads to the increase in the possibility of electronmethane collisions (6-9), thus achieving a higher CH 4 conversion. Nevertheless, all the consecutive reactions (10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20) are supposed to occur proportionally to the available amount of active species derived from the electron-methane collisions. Therefore, all the product selectivities (as expressed by the fractional percentages, (2) and (3)) were found to remain almost unchanged, while the product yields were found to accordingly increase due to a higher CH 4 conversion (4 and 5).…”

“…A promising way is to use non-thermal plasma for the methane reforming. Numerous investigations have been focused on the direct methane reforming using the non-thermal plasma; these include non-oxidative methane reforming [1][2][3][4][5][6][7][8], oxidative methane reforming [9][10][11][12][13][14][15][16][17][18], and hybrid plasma-catalytic reforming of methane [19][20][21][22][23][24][25][26][27][28][29][30][31][32]. The energetic electrons generated by non-thermal plasma can effectively induce the creation of a huge number of chemically active species via electronic and ionic collision-dissociation-combination mechanisms, and these generated active species can rapidly undergo several chemical reactions under ambient conditions.…”

Heterogeneous combinatorial catalysis applied to oil refining, petrochemistry and fine chemistry

“…These techniques are typically used to explore three-or four-component compositions (as well as the substrate nature) and usually the composition of deposited material depends linearly on its position in the array plate. Amongst other techniques, the fabrication of thin-film arrays can be carried out by RF spraying of solutions or powders using masking techniques [25][26][27] or micro-dosing of aliquots using Ink-Jet techniques, thermally driven techniques [28][29][30] or laser-driven techniques [31,32]. In this case, the amount of solid catalyst film is in the range from very few milligrams to 100 mg.…”