Establishment and Commercial Application of Kinetic Models for Catalytic Reforming Reactions -Establishment of Physical Model for Catalytic Reforming Reactions
In the MES, coal and natural gas are utilized synthetically based on the method of dual-fuel reforming, which integrates methane/steam reforming and coal combustion.
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With thinner membrane and higher sweep ratio, methane conversion rate increases with high reforming pressure, which will change the unfavorable condition of high pressure of HTGR methane reforming hydrogen production system into a favorable one.
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New data on gas-phase radical reactions in the steam reforming of methane in the presence of catalysts: I.
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Methane pyrolysis and steam reforming were studied over a series of nickel catalysts (Ni-Al2O3, Ni/MgO, and Ni/LiAlO2) under the same conditions (650-750°C, PCH4 = 0.001-0.03 MPa).
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Unlike heterogeneous reaction of pyrolysis, some of the steps of steam reforming of methane occur in the gas phase.
A chromatographic method is used for hydrocarbon-type analysisbycarbon-number of wide-cut catalytic reforming naphtha(60-180℃),using a single column packed with 10X molecular sieve thin layer loaded on support 101. The absolute error of each group is less than 2%. The apparatus is simple and convenient for operation.
The state of Sn in reforming catalysts was studied by M(?)ssbauer spectroscopy. The catalysts were prepared by both co-impregnation and co-precipitation methods. Besides the effect of different Pt/Sn atomic ratio on the state of Sn,the state of Sn after calcination,reduction or reaction was also investigated.After reduction, Sn in the catalysts prepared by co-impregnation method exists in various forms: tetravalence(SnAl_2O_5 SnO_2),divalence(Sn Al_2O_4,SnO)and Sn/Pt alloys(Pt_3Sn, Pt Sn_4).The amount...