Research Association for Residual Oil Processing

Ikusei Nakamura

Ryuichiro Iwamoto

Akira Iino

A hydrocracking catalyst for heavy hydrocarbon oils comprising a metallic element of the VIb Group and a metallic element of the VIII Group supported on a carrier containing a novel faujasite-type aluminosilicate which absorbs an infrared in a frequency region of 3740.+-.10 cm.sup.-1 in an absorption percentage A of at least 20% and absorbs an infrared in a frequency region of 3560 .+-.10 cm.sup.-1 in an absorption percentage B of at least 5%, the ratio of A/B being at least 2, has a specific surface area of at least 650 m.sup.2 /g, has a framework SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 20 to 50, and has a lattice constant of from 24.15 to 24.50 .ANG.. The novel faujasite-type aluminosilicate is produced by treating a faujasite-type zeolite with an acid.

Method for hydrocracking a heavy hydrocarbon oil utilizing a faujasite

A hydrocracking catalyst for heavy hydrocarbon oils comprising a metallic element of the VIb Group and a metallic element of the VIII Group supported on a carrier containing a novel faujasite aluminosilicate which absorbs infrared in a frequency region of 3740.+-.10 cm.sup.-1 in an absorption percentage A of at least 20% and absorbs infrared in a frequency region of 3560.+-.10 cm.sup.-1 in an absorption percentage B of at least 5%, the ratio of A/B being at least 2, has a specific surface area of at least 650 m.sup.2 /g, has a framework SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of from 20 to 50, and has a lattice constant of from 24.15 to 24.50 .ANG.. The novel faujasite aluminosilicate is produced by treating a faujasite zeolite with an acid.

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Chiba, Japan

Ikusei Nakamura