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- W2389812560 abstract "The effects of different reaction conditions on the catalytic performance have been investigated in a fixed bed flow reactor.When the space velocity was lower than 2 0×10 5 h 1 ,the activity would rise with increasing space velocity.When higher than 2 0×10 5h -1 ,the space velocity had little effect on the reaction performance.When the molar ratio of CH 4/O 2 was between 1 8 and 2 1,the decrease of CH 4/O 2 ratio could raise CH 4 conversion,but showed less effect on the selectivity of both CO and H 2.When the ratio of CH 4/O 2 exceeded 2 1,the catalytic performance declined rapidly with the increase of CH 4/O 2 ratio. Adding a thin layer of Rh catalyst at the inlet of the nickle catalyst bed could decrease signigicantly the ignition temperature,and the catalytic performance kept almost unchanged.The desirable H/D ratio was much beneficial for the catalytic performance. As the H/D ratio was in a range of 0 3 and 0 6,an optimal catalytic performance could be obtained over the Ni based catalyst.With a space velocity of 2 0×10 5h -1 ,CH 4/O 2 ratio of 2 0 and at 900℃,the conversion of methane was higher than 96%,CO selectivity was higher than 95% and H 2 selectivity was higher than 99%." @default.
- W2389812560 created "2016-06-24" @default.
- W2389812560 creator A5081356219 @default.
- W2389812560 date "1999-01-01" @default.
- W2389812560 modified "2023-09-28" @default.
- W2389812560 title "Partial oxidation of methane to syngas over Ca modified Ni based catalyst(II)" @default.
- W2389812560 hasPublicationYear "1999" @default.
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