Preparation of alkali-resistant, Sil-1 encapsulated nickel catalysts for direct internal reforming-molten carbonate fuel cell

Gas permeation and separation in ZSM-5 micromembranes

“…Gas separation by molecular sieving was demonstrated for separation of nC 3 /N 2 binary gas mixture, while separation by preferential adsorption was displayed by Sil-1 for ternary gas mixture of hydrogen, methane and carbon dioxide. Membrane separation is of considerable interest for chemical microprocess systems as an efficient and compact separation unit for integrated miniature chemical plants [63,64] and micro fuel cells [65,66]. Although the ZSM-5 membrane permselectivity is modest compared to palladium membrane [67][68][69][70][71], it is less expensive and more versatile.…”

In situ synthesis of nickel carbide-promoted nickel/carbon nanofibers nanocomposite catalysts for catalytic applications

“…In addition to their high cost in industrial applications, the problem often arising is that highly active noble metals are not selective toward haloanilines and must be modified by alloying or poisoning with other metal oxides or the application of several promoters [23,35,36], but in most cases at the expenses of catalytic activity. Recently, due to their good catalytic performance, relatively low-cost Ni-based catalysts have attracted interest in a variety of heterogeneous reactions [37][38][39][40][41][42], such as some selective hydrogenation reactions of halogenated nitro compounds [39][40][41][42].…”

Zeolite Catalysis

“…In the first case, the controlled supply of reactants could prevent undesirable reaction, due to the selective permeation through the zeolite membrane to the catalyst core. Additionally, the zeolite shell could act as protective barrier against impurities or poisons, e.g., in a direct internal reforming-molten carbonate fuel cell [233]. In the second case, the selective removal of the desired product could shift the equilibrium in thermodynamically limited reactions and enhance the selectivity.…”