| http://www.w3.org/ns/prov#value | - The catalyst used is a commercial product which, when fresh, consists of nickel oxide supported on kieselguhr as carrier, the nickel content being 44% W. The conditions applied are as follows: reactor pressure 63 kg./cm. hydrogen partial pressure 35 kg./cm. temperature 275 C., space velocity 4 tons of oil per m of catalyst per hour, gas/ oil ratio 100 Nm. per ton of oil.
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