Nippon Oil Company

Junichi Kubo

Makoto Sasaki

Kenji Suzuki

Tadakazu Yamashita

Hiroshi Kato

Masaru Sato

Masao Nambu

Hirotugu Kinoshita

Kiyoshi Kato

Nobuo Yokoyama

Eiji Akiyama

Toshitsune Yoshikawa

Kozo Kamiya

Atsuo Tokutake

Genichi Yamamoto

Hideki Sakuma

A thermoplastic elastomer composition is provided which is highly durable and free from oxidative deterioration when exposed to elevated temperature as in molding and also ambient temperature at which an end product thereof is used. These advantageous features are attributable to the use of a hydrogenated oil of the class disclosed which serves effectively to suppress the tendency of an elastomer undergoing gelation or cross-linking particularly when heated in the atmosphere. The hydrogenated oil is derivable from hydrogenation of a liquid product resulting from thermally treating a coal tar or distillates thereof at above 400.degree. C.; a liquid product resulting from thermally treating at above 400.degree. C. a petroleum crude oil, distillates thereof, or a liquid hydrocarbon derived from catalytic cracking, hydrogenative cracking or catalytic reforming of petroleum distillates; or a thermally cracked tar resulting from thermally cracking a petroleum crude oil or distillates thereof.

Thermoplastic elastomer composition

A process is provided for converting a heavy hydrocarbon oil into light hydrocarbon fuels by thermal cracking or hydrocracking, which comprises adding to about 100 parts by weight of the heavy hydrocarbon oil feedstock (A) about 0.1 to 50 parts by weight of a substance (B) which is a hydrogenated oil obtained by aromatic ring hydrogenation of about 430.degree.-600.degree. C. thermal-treated or cracked petroleum feedstock product oil boiling higher than about 200.degree. C. to hydrogenate abot 20 to 90% of the aromatic rings present.

Process for converting heavy hydrocarbon oil into light hydrocarbon fuel

Oil compositions

A rubber composition comprising a naturally occurring and/or synthetic rubber and a selected amount of a hydrogen donor material having a hydrogen transfer (hydrogen atom/mol anthracene) of at least 0.1. The composition is highly stable during molding and in use under severe temperature and shearing conditions and substantially immune to deterioration by heat or radiation and ultraviolet rays.

Rubber compositions

A thermoplastic resin composition comprising a thermoplastic resin (A) and a hydrogen donative material or Component (B) added in an amount of 0.01-40 weight parts per 100 weight parts resin (A), the hydrogen donative material having a transfer of hydrogen or at least 0.1 (hydrogen atoms/molecules anthracene). The composition further incorporates metal salts of aliphatic acid and/or hydrotalcites and a selected class of oxidation inhibitors.

Thermoplastic resin compositions

An oil composition contains 100 parts by weight of a base oil selected from the group consisting of mineral base oil, synthetic base oil and mixtures thereof, and 0.1 to 20 parts by weight of a hydrogenated oil obtained by hydrogenating an oil selected from the group consisting of coal type tar, oil produced by fractionating coal type tar, a hydrocarbon obtained by thermally cracking petroleum and having a boiling point of not lower than 200.degree. C., a hydrocarbon obtained by catalytically cracking petroleum and having a boiling point of not lower than 200.degree. C., a hydrocarbon obtained by catalytically reforming petroleum and having a boiling point of not lower than 200.degree. C., and mixtures thereof, whereby the hydrogenated oil has the hydrogen-donating properties of not lower than three times the hydrogen-donating properties of the base oil at temperatures of not lower than 350.degree. C.

Oil composition containing hydrogenated oil

A method for hydrocracking a heavy fraction oil which comprises cracking a heavy fraction oil in the coexistence of a catalyst and a hydrogen donating solvent such as tetralin while adding a hydrogen-containing gas to the cracking reactor thereby inhibiting the formation of carbonaceous substances and precursors thereof and then hydrogenating the reaction products in the presence of a solid catalyst while adding a hydrogen-containing gas to the hydrogenating reactor thereby to convert the toluene-insoluble carbonaceous substances and precursors thereof to toluene-soluble ones, thus causing no clogging in an apparatus used.

Method for hydrocracking heavy fraction oils

A method for hydrocracking a heavy fraction oil characterized by cracking a heavy fraction oil in the presence of a hydrogen donating solvent and hydrogen gas and circulating a fraction having a specific boiling range as the circulating solvent through the cracking reactor whereby the formation of carbonaceous substances is greatly inhibited, the supply of a makeup hydrogen donating solvent is disposed with and the concentration of tetralin in the circulating solvent is maintained at a fixed or higher level.

Method for hydrocracking heavy fraction oil

A process for preparing a fluid for traction drive from a fraction containing compounds having at least four aromatic rings is disclosed. The fraction is a by-product produced at the time of the preparation of alpha-methyl-benzylalkylbenzenes by alkylation of at least one compound selected from C.sub.7 -C.sub.10 alkylbenzenes with styrene in the presence of an acid catalyst. The process comprises the steps of decomposing the fraction in an atmosphere of hydrogen at a predetermined temperature and pressure, collecting a decomposition product having a boiling range not higher than 450.degree. C. and then subjecting the decomposition product to nuclear hydrogenation at aromatic rings thereof in the presence of a catalyst capable of nuclear hydrogenation.

Process for preparing a fluid for traction drive

A method for cracking a heavy fraction oil is provided in which is solved a problem as to an increase in pressure loss due to coking in a cracking tower during the treatment of heavy fraction oils containing at least 1.0 wt. % of asphaltene. The cracking tower is vertically divided into at least two portions with a partition for housing a solid catalyst having a hydrogenation function, and the divided portions are communicated with each other at the upper and lower parts of the tower. A starting heavy fraction oil, a hydrogen donative solvent, and a hydrogen-containing gas are introduced into at least one of the divided portions at the lower part thereof, and further the fluid is circulated between the divided portions. Another method for cracking heavy fraction oils is provided in which a heavy hydrocarbon oil containing at least 1.0 wt. % of asphaltene is hydrogenated, a starting heavy fraction oil is cracked in the presence of at least one kind of a solid material selected from solid catalysts and porous solids and of a hydrogen donor, and at least 50 wt. % of heavy metals contained in the starting heavy fraction oil is ahdered to the solid material, and a reaction product mixture from the first step is separated from the solid material and then hydrogenated in the presence of hydrogen gas and a hydrogenating catalyst.

Method for cracking heavy hydrocarbon oils

In a method for catalytic hydrodesulfurization of a heavy petroleum hydrocarbon oil in a reactor composed of a cylindrical pressure vessel and a cylindrical inner pipe, in which hydrogen gas, oil liquid and solid catalyst particles are concurrently present and the catalyst particles are fluidized and recycled in the reactor without flowing out of the reactor, an improvement for the prevention of the catalyst's efflux is achieved by the provision of a bubble-collecting plate and at least two catalyst particlescatching plates above the inner pipe in the reactor.

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Yokohama, Japan

Junichi Kubo