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Yokohama, Japan

Chiyoda Corporation is a large Japanese engineering company specialising in industrial facilities, particularly oil refineries and LNG facilities. Most of its business takes place outside Japan, normally in the Middle East.In the late 1960s it built the Jeddah and Riyadh refineries in Saudi Arabia; at present its large projects include LNG plants in Qatar, the Sakhalin-II project in eastern Russia, and a variety of specialist-chemical and pharmaceutical plants in Japan itself.It was, in 2005, the first engineering company in the world to be included in the FTSE4Good index of companies with exemplary corporate social responsibility.It had a 484 billion yen revenue and 23.5 billion yen profit in 2006. Wikipedia.

Chiyoda Corporation | Date: 2014-08-14

An ultraviolet irradiation device that is used for a fluid to be irradiated having a low ultraviolet ray transmissivity, a spirally wound tube in which the fluid to be irradiated flows is supported and fixed, and an irradiation amount of ultraviolet rays with which the fluid is irradiated is increased. A tube

Chiyoda Corporation | Date: 2014-11-19

Provided is a method of evaluating a resin capable of quantitatively evaluating a deterioration degree of the resin with high accuracy and ease. The method includes evaluating the resin based on a shift of a characteristic peak representing a deterioration degree of the resin, the peak being observed in thermal analysis of the resin by a temperature increase, to lower temperatures.

Chiyoda Corporation | Date: 2014-07-03

According to a method for producing acetic acid by carbonylation of methanol characterized in that an acid having an acid dissociation constant (pK

A hydrotreating catalyst for hydrocarbon oil having a hydrodesulfurization activity additionally improved by: simultaneously and continuously adding an aqueous solution of an acidic compound containing titanium and an aqueous solution containing an alkaline compound to a hydrosol containing an alumina hydrate particle at a temperature of 10 to 100 C. and a pH of 4.5 to 6.5; washing the resultant to remove a contaminating ion; forming the washed product after dehydration so as to have a moisture content at which it is formable; drying the resultant; impregnating the dried product with a catalytic component aqueous solution containing periodic table group 6 metal compound, periodic table group 8-10 metal compound, phosphorus compound, and saccharide; and drying the resultant; a manufacturing method for the catalyst; and a hydrodesulfurization treatment method for hydrocarbon oil using the catalyst.

Chiyoda Corporation | Date: 2015-05-15

A solar-thermal collector includes a shaft supported by stands, a plurality of plate-like arms, which are secured to the shaft and arranged at intervals in the direction of length of the shaft, a reflector, which is supported by two adjacent arms and which reflects and concentrates the sunlight, and a spacer, which defines the spacing between the two adjacent arms and which is provided between the two adjacent arms.

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