Idemitsu Kosan Company, Limited

Kabushiki Kaisha Kobe Seiko Sho

Mitsubishi Chemical Industries Limited

Cosmo Oil Co., Ltd.

Asia Oil Company Limited

Nippon Brown Coal Liquefaction Co., Ltd.

Mitsubishi Kasei Corporation

Cosmo Research Institute

Jun Imai

Yoichi Kageyama

Yukio Nakako

Hironori Kageyama

Iwao Yamamoto

Sanae Ueda

Shinji Yamaoka

Takahisa Yamaura

A petroleum additive having excellent storage stability and heat stability, which comprises an alkaline earth metal salt of aromatic hydroxycarboxylic acid containing a higher aliphatic carboxylic acid, a higher aliphatic amine or a higher aliphatic amide, or a sulfurized mixture thereof. A process for improving storage stability, heat stability and viscosity character of the petroleum additive.

Petroleum additive having excellent storage stability and heat stability

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 method for hydrogenating a solvent-refined coal, comprising:

Method for hydrogenating a solvent-refined coal

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.

Growing community of inventors

Sagamihara, Japan

Jun Imai