Producing 2-5C hydrocarbons from methane, comprises (i) reacting methane with oxygen in the presence of a catalyst 1 in a product gas mixture comprising ethane, ethylene, carbon monoxide and carbon dioxide, and (ii) contacting the product mixture with hydrogen in the presence of a catalyst 2 ...
Methyl bromide was synthesized by reacting methane with oxygen and hydrogen bromide over Rh/SiO2 catalyst. The reaction started from the oxidation of HBr to form active bromine species (Br radicals and Br* surface species), which in turn reacted with CH4 to form CH 3 radicals and $$\\hbox...
Reaction-transport simulations of non-oxidative methane conversion with continuous hydrogen removal — homogeneous–heterogeneous reaction pathways Dynamics of the non-oxidative conversion of methane in a moving mixture of the catalyst nanoparticles and the reacting gas is under study using the methods......
It is produced through steam-methane reforming by reacting methane with steam at approximately 900 C in the presence of a metal catalyst: CH4 + H2O→CO + 3H2. Alternately, methane is partially oxidized and the energy from its partial combustion is used to produce syn gas: CH4 + 2O2→ ...
[1] on La0.9Ca0.1FeO3-δ (LCF−91) membrane reactor all show that, compared with inert gas, the use of reducing/reacting gas as a sweep gas can improve the oxygen permeability of the membrane reactor, thus leading to a higher hydrogen yield. In recent years, researchers have proposed ...
62, 63, 64, 65 The high-energy electrons and holes can diffuse towards the interface between the semiconductor and the reacting environment to drive redox reactions. To drive methane conversion, oxide semiconductors are widely used. The VB of oxide semiconductors is composed of O2p orbitals, ...
A Fridman, AF Gutsol, YL Cho - US Patent 7, 829 - www.google.com 10-14, 1994, and “Modeling and Simulation of a Non-isothermal Catalytic Membrane Reactor”in Chem. Eng. Comm., 1995, Vol. 134, pp. 107-132. The catalyst may be additionally activatedby light radiation, and this ...
Currently, the thermo-catalytic route (Haber-Bosch process) is the most established and efficient process at large scale with a history of over a century. In this route, ammonia is synthesised by reacting H2 gas with N2 gas over a solid catalyst. This highly exothermic and entropy-decreasing ...
In contrast, over the reduced NiO/SiO2 catalyst, the reaction takes place by a Langmuir−Hinshelwood mechanism, CH4 and O2 reacting in the adsorbed states. In addition, isotopic pulses of 18O2 revealed that over the reduced catalyst lattice oxygen is formed and reduced by the carbon species;...
The latter is capable of reacting with latticeoxygen of Ni/ α -Al 2 O 3 (slowly) and with adsorbed oxygen (rapidly). Carbon dioxide also reacts with surfacecarbon to form CO (rapidly) and with metallic Ni to yield CO and NiO (slowly). Thus, the main route of meth-ane reforming ...