Mitsubishi Chemical Industries Limited

Asia Oil Company Limited

Idemitsu Kosan Company, Limited

Kabushiki Kaisha Kobe Seiko Sho

Nippon Brown Coal Liquefaction Co., Ltd.

Mitsubishi Chemical Corporation

Mitsubishi Kasei Corporation

Cosmo Oil Co., Ltd.

Yoichi Kageyama

Yukio Nakako

Jun Imai

Makoto Suzuki

Tetsuo Matsumura

Kazuhiko Onuma

Nobuyoshi Hirokoh

Hironori Kageyama

Kazunori Oshima

Iwao Yamamoto

Masakatsu Hatano

Tetsuo Masuyama

Hiromu Kobayashi

Toshihiro Kawakami

Takao Kaneko

Toru Koyama

Masato Aiura

Kikuo Moriya

Yozo Kato

Hisao Kosugi

Akihiro Matsuki

Takahisa Yamaura

Masayosi Murayama

A process for producing a liquefied coal oil by a two step hydrogenation reaction of coal, which comprises subjecting coal to a first hydrogenation and subjecting at least a part of the reaction product of the first hydrogenation to a second hydrogenation, wherein the second hydrogenation is conducted in the presence of an alkali metal compound and/or an alkaline earth metal compound and a catalyst carrying a metal of Group VI-A and a metal of Group VIII of the Periodic Table.

Process for producing a liquefied coal oil and a catalyst for the process

A process for converting coal to an oil fraction, which comprises subjecting coal to a first hydrogenation reaction, deashing the reaction product of the first hydrogenation reaction and subjecting the deashed liquefied oil to a second hydrogenation reaction, wherein coal, a solvent and hydrogenation-treated heavy oil components are supplied for the first hydrogenation reaction; from the first hydrogenation reaction product, at least a part of the oil fraction is obtained; from the first hydrogenation reaction product, a substantial amount of preasphaltene components is removed simultaneously with or independently of the deashing operation, and the deashed liquefied oil containing heavy oil components and not greater than 20% by weight of preasphaltene components thereby obtained, is supplied for the second hydrogenation reaction; from the second hydrogenation reaction product, an oil fraction and heavy oil components are separated and the heavy oil components are recycled to the first hydrogenation reaction in an amount of at least 20% by weight relative to the heavy oil components in said deashed liquefied oil.

Process for converting coal to an oil fraction

A method for hydrogenating a solvent-refined coal, comprising:

Method for hydrogenating a solvent-refined coal

A process for the hydrogenolysis of a coal liquid bottom containing benzene-insoluble components and having a boiling point of at least 420.degree. C., which comprises:

Process for the hydrogenolysis of a coal liquid bottom

A method for hydrogenating a solvent-refined coal by heating it under hydrogen pressure in a fixed bed, characterized in that a solvent-refined coal fraction containing no substantial amount of preasphaltene is used as the solvent-refined coal.

A process for converting coal, comprising, subjecting a slurry composed essentially of coal, a hydrocarbon solvent and a hydrogenation catalyst to primary hydrogenation to liquify the coal, separating the ash content of said coal from the reaction product thereby obtaining a liquified product, subjecting at least a portion of the liquified product to secondary hydrogenation in the presence of a hydrogenation catalyst thereby converting the liquified product to light oil product, the secondary hydrogenation step being a point of supply of hydrogenation catalyst to the coal conversion system, separating the hydrogenation catalyst from the reaction product of the secondary hydrogenation step, and returning said separated hydrogenation catalyst to the primary hydrogenation step where it is used as the catalyst for primary hydrogenation of said slurry.

Process for converting coal

A porous refractory inorganic oxide product is produced by shaping a mixture of carbon black and a refractory inorganic oxide and/or a precursor of refractory inorganic oxide; drying a product; firing it in an oxygen-containing gas flow while burning said carbon black.

Process for producing porous refractory inorganic oxide products

A hydrogenation catalyst for desulfurization and removal of heavy metals, comprises (a) at least one metal component selected from metals of Groups VI B and VIII of the Periodic Table, as a catalytically active component, and (2) a porous activated alumina carrier obtained by shaping a mixture of carbon black and a powder of activated alumina or a precursor of activated alumina, drying the shaped mixture and firing it in an oxygen-containing gas stream to burn off the carbon black.

Hydrogenation catalyst for desulfurization and removal of heavy metals

There is disclosed a catalytic composition represented by the formula:

Catalytic composition

A heavy liquefied coal which is a source for carbon products is produced by heating coal with a hydrocarbon solvent under a hydrogen pressure atmosphere in the presence of a catalyst of a pulverized iron ore.

Liquefaction of coal

A catalyst for producing a cyclomonoolefin by hydrogenating an aromatic hydrocarbon of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are the same or different and each represents hydrogen or C.sub.1 -C.sub.3 alkyl at 100.degree.-200.degree. C under a hydrogen pressure of 5-100 atm. in an aqueous medium having a pH of 2-7 is prepared by (1) immersing a carrier into an aqueous solution containing at least one cation selected from the group consisting of sodium, potassium, magnesium, calcium, barium, zinc, manganese and iron to obtain a treated carrier, (2) supporting at least one metal selected from the group consisting of ruthenium and rhodium on said treated carrier, and (3) immersing the carrier impregnated with at least one metal selected from the group consisting of ruthenium and rhodium into an aqueous solution containing at least one cation selected from the group consisting of sodium, potassium, magnesium, calcium, barium, zinc manganese and iron.

Catalyst for producing cycloolefin and method for making the same

Exhaust gas containing a chlorohydrocarbon having 1-10 carbon atoms and molecular oxygen is contacted with chromium oxide or a boehmite supported platinum at an elevated temperature to decompose the chlorohydrocarbon to carbon dioxide, water, hydrogen chloride and free chlorine.

Method of decomposing chlorohydrocarbons

Exhaust gas containing a halohydrocarbon having 1 - 10 carbon atoms and molecular oxygen is contacted with chromium oxide or a boehmite supported platinum at an elevated temperature to decompose the halohydrocarbon to carbon dioxide, water, hydrogen halide and free halogen.

Growing community of inventors

Isehara, Japan

Yoichi Kageyama