Transformation of C8 aromatics on platinum, palladium and nickel supported on ZSM-5

Satyanarayana, C.V.V.; Chakrabarty, K.

doi:10.1016/s0166-9834(00)81622-x

Cited by 14 publications

(2 citation statements)

References 13 publications

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“…Among the Group VIII metals, platinum and palladium supported on HZSM-5 have been widely and thoroughly investigated . Nickel on HZSM-5 has been found to be active in the aromatization, hydrocracking, and isomerization of hydrocarbon. − But nickel sulfide supported on HZSM-5 was only rarely studied, especially the use of NiS/HZSM-5 in the hydrotreating of cracked naphtha.…”

Section: Introductionmentioning

confidence: 99%

Hydrotreating of Cracked Naphtha over Ni/HZSM-5 Catalyst

2003

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A series of Ni/HZSM-5 bifunctional catalysts were prepared and were characterized by infrared spectroscopy of adsorbed pyridine as well as by X-ray powder diffraction analysis. The activity of the catalysts was investigated in hydrogenation and aromatization for the hydrotreating of cracked naphtha. It was revealed that the aromatization activity of the Ni/HZSM-5 catalyst decreases with the increase of catalyst acidity. The production of aromatics in hydrotreated naphtha with relatively low reaction temperature is related to a complicated scheme of carbenium ion reactions taking place on the catalyst surface and which are associated with the cooperation of the L acid site and the B acid site in the catalyst. The experimental results of hydrotreating of FCC naphtha show that the Ni/HZSM-5 catalyst has high aromatization and moderate hydrogenation activities; with the increase of reaction temperature the RON of the hydrotreated naphtha increases, mainly because of the production of aromatics, but at the same time there is a decrease of the total naphtha yield, because of the production of light products.

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Section: Introductionmentioning

confidence: 99%

Hydrotreating of Cracked Naphtha over Ni/HZSM-5 Catalyst

2003

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“…Satyanarayana [19] studied the transformation of C 8 aromatics on platinum, palladium and nickel supported on ZSM-5. Deactivation was rapid over nickel and palladium loaded zeolite catalysts and C 8 loss was lower on platinum zeolite catalysts.…”

Section: Effect Of Ni Loading Over Zeolite-β (B Series)mentioning

confidence: 99%