New catalytic routes for syngas and hydrogen production

Elementary steps of syngas reactions on Mo2C(001): Adsorption thermochemistry and bond dissociation

“…Reactions involving carbon oxides and hydrocarbons are important for numerous processes including synthetic fuel production, methane reforming, hydrocarbon cracking, and synthesis/isomerization of industrial chemicals [1,2,3,4,5,6,7,8]. These reactions are traditionally catalyzed with transition metals which often suffer from high cost, poisoning, graphitization, or carburization [1,9,3,2,10] .…”

“…These reactions are traditionally catalyzed with transition metals which often suffer from high cost, poisoning, graphitization, or carburization [1,9,3,2,10] . The use of transition metal carbides as catalysts presents an interesting alternative due to the possibility of unique Mars-van-Krevelen type mechanisms [11], inherent stability against bulk carburization, and potentially lower costs [3].…”

Effect of Fractal Dimension on CO Selectivity of K−Ni/<i>α</i>-Al₂O₃ Catalyst for High Pressure Oxidative Reforming of Methane

“…Oxidative reforming of natural gas attracts much attention as syngas production process in C1 chemistry 1) . Oxidative reforming is exothermic, so this process is easier to scale-up than the steam reforming process in the factor of heat supply.…”

“…The overall reaction is the same, but the indirect route reaction loses the advantages of oxidative reforming reaction, resulting in hot-spot formation, coke formation, equilibrium limitations, and other problems. Only a few Ni catalysts act as a direct route catalyst such as Ni/ , Yuichiro YAMAZAKI 1) , Daisuke ITABASHI 1) , Takayuki NAKANISHI 1) , and Muneyoshi YAMADA 2) 1) Dept. of Applied Chemistry, Graduate School of Engineering, Tohoku University, Aoba 6-6-07, Aoba-ku, Sendai 980-8579, JAPAN 2) Akita National College of Technology, Bunkyo-cho 1-1, Iijima, Akita 011-8511, JAPAN (Received October 16,2009) To suppress total oxidation and increase the CO selectivity of high-pressure oxidative reforming of methane, preparation parameters of K _ Ni/α-Al2O3 catalyst were optimized.…”

An integrated air–POM syngas/dimethyl ether process from natural gas

“…In recent years, catalytic partial oxidation of methane (POM) to syngas has been an active topic for natural gas utilization owing to its mildly exothermic, high reaction rate and low capital costs. Additionally, the H 2 /CO ratio in syngas derived from POM process is 2/1, well fit for MeOH, DME and Fischer-Tropsch synthesis [10][11][12][13][14]. The problem is that the expensive installation of oxygen separation would restrict the industrial application of POM.…”