Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Abasali Khodadadi"'
Publikováno v:
International Journal of Chemical Reactor Engineering. 11:353-359
The lanthanum manganite perovskites with excess Mn and La partially substituted with alkaline earth metals including Mg, Ca, Sr, and Ba were used for oxidation of trichloroethylene (TCE). Ba-substituted perovskite shows highest TCE oxidation performa
Publikováno v:
Applied Surface Science. 257:9710-9716
We report the variation of yield and quality of carbon nanotubes (CNTs) grown by chemical vapor deposition (CVD) of methane on iron oxide–MgO at 900–1000 °C for 1–60 min. The catalyst was prepared by impregnation of MgO powder with iron nitrat
Autor:
Azim Malekzadeh, Yadollah Mortazavi, S. Hoseini, Abasali Khodadadi, Mahnaz Ghiasi, Alireza Talebizadeh
Publikováno v:
Journal of Natural Gas Chemistry. 20:428-434
A comprehensive kinetic model for oxidative coupling of methane (OCM) over Mn and/or W promoted Na 2 SO 4 /SiO 2 catalysts was developed based on a micro-catalytic reactor data. The methane conversion and ethylene, ethane, carbon monoxide and carbon
Publikováno v:
Crystal Research and Technology. 45:1064-1068
In this study the effects of citric acid concentration, used as organic emulsifier, on the perovskite phase formation of the nano strontium manganite or cobaltite samples were studied. Stoichiometric perovskites in the absence and presence of citric
Publikováno v:
Applied Surface Science. 256:2769-2774
A novel continuous process is used for production of carbon nanotubes (CNTs) by catalytic chemical vapor deposition (CVD) of methane on iron floating catalyst in situ deposited on MgO in a fluidized bed reactor. In the hot zone of the reactor, sublim
Publikováno v:
Journal of Natural Gas Chemistry. 19:35-42
The effects of manganese oxide or ceria promoters on the performance of Na 2 WO 4 /SiO 2 catalysts for oxidative coupling of methane (OCM) are reported. The OCM reaction was performed in a continuous-flow microreactor at 800 °C, atmospheric pressure
Publikováno v:
Journal of the European Ceramic Society. 29:1061-1068
In this study, MgO nanoparticles were prepared by microwave-induced combustion synthesis of magnesium nitrate (as oxidant and MgO precursor) and polyethylene glycol and sorbitol as fuels. The effects of various parameters including the aging time of
Publikováno v:
Chemical Engineering Science. 63:4910-4916
The dynamics of Mn-Na 2 WO 4 /SiO 2 catalyst in oxidative coupling of methane (OCM) was investigated by transient experiments at a temperature range of 700-850 °C. Both the on-line analyses by GC-MS and off-line analyses by multi-port sampling valve
Publikováno v:
Chemical Engineering & Technology. 28:581-586
A set of feed forward multilayer neural network models have been proposed to predict CH 4 conversion, C 2 and ethylene selectivity of methane oxidative coupling under periodic operation. These parameters predicted by the proposed neural network are b
Autor:
Mostafa M. Amini, Abasali Khodadadi, H.K. Mishra, Azim Malekzadeh, Ajay K. Dalai, Mansour Abedini
Publikováno v:
Catalysis Letters. 84:45-51
Oxidative coupling of methane (OCM) was investigated in the temperature range 370-775 °C over Mn/Na2WO4/SiO2 catalysts with different loadings of manganese in integral-mode conditions. Na2WO4/SiO2 shows no activity at low temperature (370 °C), wher