Catalytic hydrogenolysis of ethane over the noble metals of Group VIII

Sinfelt, J. H.

doi:10.1016/0021-9517(67)90284-9

Cited by 230 publications

(56 citation statements)

References 6 publications

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“…Adsorbed CO may be consumed by the desired water-gasshift reaction (Pathway III) to give CO 2 and H 2 or form alkanes by undesired methanation and Fischer-Tropsch reactions (Pathway IV). Nickel catalysts are promising for the APR process because they readily cleave C-C bonds [14] and show high activity for the water-gas-shift reaction [15]. However, nickel catalysts also cleave C-O bonds, especially in the hydrogenation of CO and CO 2 (through the reverse water-gas-shift reaction) to form methane [16][17][18][19][20].…”

Section: Discussionmentioning

confidence: 99%

Aqueous-phase reforming of oxygenated hydrocarbons over Sn-modified Ni catalysts

Shabaker

Huber

Dumesic

2004

Journal of Catalysis

357

232

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Section: Discussionmentioning

confidence: 99%

Aqueous-phase reforming of oxygenated hydrocarbons over Sn-modified Ni catalysts

Shabaker

Huber

Dumesic

2004

Journal of Catalysis

357

232

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“…The cause of this quick deactivation here is mostly associated due to coke formation in case of palladium catalysts. Pt and Pd demonstrate similar activity for C-C cleavage [13], however, Pt is more active for water-gas shift reaction [14] and therefore the overall rate of formation of hydrogen is higher for Pt. In case of ethylene glycol (Fig.…”

Section: Effect Of Synthesis Methodsmentioning

confidence: 97%

Hydrogen generation from liquid phase catalytic reforming of sugar solutions using metal-supported catalysts

Tanksale

Wong

Beltramini

et al. 2007

International Journal of Hydrogen Energy

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“…Earlier studies have shown that Ni favors the C-C bond rupture but its activity for the WGS is low [13,37,38]. On the other hand, Cu is known to be a good catalyst for WGS and the active sites for reforming and WGS are the reduced metallic species [22].…”

Section: Effect Of Cumentioning

confidence: 98%

Steam reforming of ethanol on Ni–CeO2–ZrO2 catalysts: Effect of doping with copper, cobalt and calcium

Biswas

Kunzru

2007

Catal Lett

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Steam reforming (SR) and oxidative steam reforming (OSR) of ethanol were investigated over undoped and Cu, Co and Ca doped Ni/CeO 2 -ZrO 2 catalyst in the temperature range of 400-650°C. The nickel loading was kept fixed at 30 wt.% and the loading of Cu and Co was varied from 2 to 10 wt% whereas the Ca loading was varied from 5 to 15 wt.%. The catalysts were characterized by various techniques, such as surface area, temperature programmed reduction, X-Ray diffraction and H 2 chemisorption. For Cu and Co doped catalyst, CuO and Co 3 O 4 phases were detected at high loading whereas for Ca doped catalyst, no separate phase of CaO was found. The reducibility and the metal support interactions were different for doped catalysts and varied with the amount and nature of dopants. The hydrogen uptake, nickel dispersion and nickel surface area was reduced with the metal loading and for the Co loaded catalysts the dispersion of Ni and nickel surface area was very low. For Cu and Ca doped catalysts, the activity was increased significantly and the main products were H 2 , CO, CH 4 and CO 2 . However, the Co doped catalysts showed poor activity and a relatively large amount of C 2 H 4 , C 2 H 6 , CH 3 CHO and CH 3 COCH 3 were obtained. For SR, the maximum enhancement in catalytic activity was obtained with in the order of NCu5. For Cu-Ni catalysts, CH 3 CHO decomposition and reforming reaction was faster than ethanol dehydrogenation reaction. Addition of Cu and Ca enhanced the water gas shift (WGS) and acetaldehyde reforming reactions, as a result the selectivity to CO 2 and H 2 were increased and the selectivity to CH 3 CHO was reduced significantly. The maximum hydrogen selectivity was obtained for Catalyst N (93.4%) at 650°C whereas nearly the same selectivity to hydrogen (89%) was obtained for NCa10 catalyst at 550°C. In OSR, the catalytic activity was in the order N > NCu5 > NCa15 > NCo5. In the presence of oxygen, oxidation of ethanol was appreciable together with ethanol dehydrogenation. For SR reaction, the highest hydrogen yield was obtained on the undoped catalyst at 600°C. However, with calcium doping the hydrogen yields are higher than the undoped catalyst in the temperature range of 400-550°C.

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Catalytic hydrogenolysis of ethane over the noble metals of Group VIII

Cited by 230 publications

References 6 publications

Aqueous-phase reforming of oxygenated hydrocarbons over Sn-modified Ni catalysts

Aqueous-phase reforming of oxygenated hydrocarbons over Sn-modified Ni catalysts

Hydrogen generation from liquid phase catalytic reforming of sugar solutions using metal-supported catalysts

Steam reforming of ethanol on Ni–CeO2–ZrO2 catalysts: Effect of doping with copper, cobalt and calcium

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