Idemitsu Kosan Company, Limited

Research Association for Residual Oil Processing

Satoshi Nakai

Ryuichiro Iwamoto

Yoshimi Kawashima

Kozo Takatsu

Takashi Umeki

Akira Iino

Koji Yamagishi

Hajime Shimakawa

The present invention provides a catalyst precursor substance containing copper, zinc, and aluminum and exhibiting an X-ray diffraction pattern having a broad peak at a specific interplanar spacing d (&#x212b;). The present invention also provides a method for producing the catalyst precursor substance by mixing a solution containing a copper salt, a zinc salt, and an aluminum salt with a solution containing an alkali metal hydroxide or an alkaline earth metal hydroxide, thereby forming a precipitate. In the present invention, a catalyst is prepared through calcining of the catalyst precursor; the catalyst is employed for water gas shift reaction; and carbon monoxide conversion is carried out by use of the catalyst. Thus, the present invention also provides a catalyst useful for water gas shift reaction, which exhibits high activity and durability and which, even when applied to a fuel cell, can be used for a long period of time with reduction in activity being suppressed; a carbon monoxide conversion method employing the catalyst; and a fuel cell system employing hydrogen produced through the carbon monoxide conversion method.

Catalyst precursor substance, and catalyst using the same

The invention provides a catalyst for carbon monoxide conversion, comprising from 10 to 90% by mass of a copper oxide ingredient, from 5 to 50% by mass of a zinc oxide ingredient and from 10 to 50% by mass of an aluminum oxide ingredient, and having a specific surface area of from 100 to 300 m/g, a carbon monoxide adsorption of from 20 to 80 &#x3bc;mol/g, and a copper oxide crystallite diameter of at most 200 angstroms, as a catalyst suitable for carbon monoxide conversion for fully reducing carbon monoxide in the hydrogen gas obtained through reforming of a starting hydrocarbon material, for the purpose of enabling stable long-term operation of a fuel cell which uses hydrogen gas as a fuel and which is frequently and repeatedly started and stopped.

Catalyst for carbon monoxide conversion and method of carbon monoxide modification with the same

A catalyst composition comprising a modified zeolite and a binder mixed with a high degree of mixing has high hydrothermal resistance and exhibits high activities in various catalytic reactions, including various hydrocarbon-conversion reactions, and the catalyst composition is prepared by mixing a slurry of a modified zeolite and a slurry of a binder material.

Modified zeolite Y catalyst composition

A process for hydrocracking heavy oil which comprises hydrocracking the heavy oil in the presence of a catalyst comprising a support of 10 to 90% by weight of an iron-containing aluminosilicate and 90 to 10% by weight of an inorganic oxide, and at least one metal belonging to Group VIB of the Periodic Table and at least one metal belonging to Group VIII deposited on the support. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe.sub.2 O.sub.3 .multidot.Al.sub.2 O.sub.3 .multidot.bSiO.sub.2 .multidot.nH.sub.2 O wherein n is a real number of 0 to 30, and a and b are real numbers satisfying the following relationships: 15&lt;b&lt;100, 0.005&lt;a/b&lt;0.15; and has an inert iron compound content, (Fe).sub.dep, as calculated by a temperature programmed reduction, of not more than 35% of the total iron content; and when subject to a temperature programmed reduction, Th (.degree.C.), is within the following equation: 850.degree. C..ltoreq.Th.ltoreq.(-300.times.UD+8,300).degree. C. wherein UD is a lattice constant (.ANG.) of the iron-containing aluminosilicate.

Hydrocracking process employing a novel iron-containing aluminosilicate

An iron-containing aluminosilicate and a process for producing the iron-containing aluminosilicate. The iron-containing aluminosilicate has a composition of the formula expressed as oxides: aFe.sub.2 O.sub.3.Al.sub.2 O.sub.3.bSiO.sub.2.nH.sub.2 O wherein n is 0 to 30, and a and b are numbers satisfying the following relationships: 15&lt;b&lt;100 and 0.005&lt;a/b&lt;0.15. The iron-containing aluminosilicate has an inert iron compound content (Fe).sub.dep as calculated by a temperature-programmed reduction, of not more than 35%, and at least one high-temperature reduction peak, Th (.degree. C.), within the following equation: 700.degree.C..ltoreq.Th.ltoreq.(-300.times.UD+8,320).degree. C. wherein UD is a lattice constant (.ANG.) of the iron-containing aluminosilicate.

Iron-containing aluminosilicate

The invention provides a process for hydrocracking heavy oils in the presence of a catalyst comprising a carrier and metals belonging to the Groups VIB and VIII of the Periodic Table. The carrier consists of from 20 to 80% by weight of iron-containing aluminosilicate and from 80 to 20% by weight of an inorganic oxide. The iron-containing aluminosilicate is prepared by treating steam-treated crystalline aluminosilicate with an aqueous iron salt solution at a pH of 1.5 or less. The molybdenum/iron-containing aluminosilicate can be used in place of the iron-containing aluminosilicate. According to the process of the present invention, the yield of an intermediate fraction can be increased.

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Sodegaura, Japan

Satoshi Nakai