Terug naar de tuinstad : Segregatie en integratie in Amsterdam

Scheffer, Paul

doi:10.5117/9789056294526

Cited by 1 publication

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“…For example, a Co-Mo catalyst supported on carbon (surface area 538 m lg, pore volume 1.3 cm3/g, average pore diameter 90 A) is said to give high S removal from gas oils and petroleum residues Several studies reported that carbon-supported catalysts provide superior thiophene HDS activity over their alumina counterparts (102)(103)(104). In addition, sulfidation is easier (105). Recently, the improvement of catalytic activity has been attributed to a different interaction of the sulfided phase with the carbon support compared to oxidic supports, leading to type II CoMoS structures (106).…”

Section: Catalytic Activity and Selectivity Of Carbon-based Catalystsmentioning

confidence: 99%

A Review of Support Effects on the Activity and Selectivity of Hydrotreating Catalysts

Luck¹

1991

Bulletin des Soc Chimique

119

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INTRODUCTIONThe hydroprocessing technology was first developed in Germany by BASF in the 1920s, for hydrogenation of brown coal tar in one step into gasoline without coke formation. It was found that cobalt, molybdenum and tungsten sulfides were especially active catalysts (1). Later a low-temperature " T H " process was developed for the same reaction, using activated alumina supported catalysts containing either 10% Mo03-3% NiO or 27% WS23% NiS. The very same compositions are still used today in many commercial hydrotreating (HDT) catalysts! During the development of these catalysts, the effect of various oxide supports on the cracking of gas oil was studied. The following order of cracking activity was found :

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