Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

Mitsubishi Power, Ltd.

Akihiro Sawata

Yukio Tanaka

Masanao Yonemura

Toshinobu Yasutake

Hiroshi Yoshioka

Katsumi Nochi

Yoshio Seiki

Kaori Yoshida

Nozomu Kawasetsu

Keiichi Iwamoto

Keiji Fujikawa

Yasuhiko Tsuru

Tomotsugu Masuda

Hyota Abe

Nobuki Oka

Shuji Fujii

Hidemasa Kakigami

Koji Higashino

Noriko Watari

Masayuki Fukagawa

Tomoaki Isobe

Asako Eguchi

Katsuzou Sudou

Syuji Fujii

Takafumi Kubota

A denitration catalyst for removing nitrogen oxide in an exhaust gas is represented by the following chemical formula: BaYAO, wherein A is an element selected from the group consisting of Bi, Sn, Ga, Mn, Ti, and Al; and X is 0.4 or more and 2 or less. A denitration device has the denitration catalyst for removing nitrogen oxide in an exhaust gas discharged from an exhaust gas generation source including a gas engine, a gas turbine, a melting furnace, or a boiler.

Denitration catalyst and denitration device

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) in gas. The CO shift catalyst has one of molybdenum (Mo) or iron (Fe) as a main component and has an active ingredient having one of nickel (Ni) or ruthenium (Ru) as an accessory component and one or two or more kinds of oxides from among titanium (Ti), zirconium (Zr), and cerium (Ce) for supporting the active ingredient as a support. The temperature at the time of manufacturing and firing the catalyst is equal to or higher than 550&#xb0; C.

CO shift catalyst, CO shift reaction apparatus, and method for purifying gasified gas

A carbon monoxide (CO) Shift reaction apparatus and a CO shift conversion method are capable of increasing the service life of a CO shift catalyst and reducing loss of energy. The CO shift reaction apparatus includes a plurality of CO shift reaction units in which a plurality of CO shift catalysts haying mutually different active-temperature regions are arranged in a gas flow direction.

Carbon monoxide shift reaction apparatus and carbon monoxide shift conversion method

A method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst for hydrolyzing COS which is contained in a gas obtained by gasifying a carbon material, wherein a spent COS hydrolysis catalyst is immersed in an acid solution for a prescribed time thereby removing poisoning substances adhering to the surface of the COS hydrolysis catalyst; and thus regenerating the COS hydrolysis catalyst.

Method for regenerating COS hydrolysis catalyst

The method for regenerating a carbonyl sulfide (COS) hydrolysis catalyst according to the present invention is a method for regenerating a Ba/TiObased carbonyl sulfide (COS) hydrolysis catalyst by hydrolyzing COS which is contained in a gas obtained by gasifying a carbon raw material, wherein a spent COS hydrolysis catalyst is washed with water, dried, immersed in an aqueous solution of a barium salt for a prescribed amount of time, dried, and calcined so as to re-support the active component on the surface of the COS hydrolysis catalyst, thus enabling the regeneration of the COS hydrolysis catalyst.

The present invention provides an exhaust gas treatment catalyst characterized by containing a compound oxide expressed by the following general formula (1),AMxOy &#x2003;&#x2003;(1)(wherein A represents an alkali metal or alkaline earth metal, M represents Cr, Mn, Fe, Co or Ni, O represents oxygen, and 0&#x3c;x&#x2266;4 and 0&#x3c;y&#x2266;8)and an exhaust gas treatment method using the said catalyst. According to the present invention, there can be provided an exhaust gas treatment compound oxide that can effectively remove particulates and NOx contained in exhaust gas with a high oxygen concentration that is discharged from a diesel engine etc., and also has excellent resistance to sulfur poisoning.

Exhaust gas treatment catalyst and exhaust gas treatment method

A sodium secondary battery which assures excellent sealing and can be manufactured in a simple manner is provided. The battery includes a negative electrode chamber defined by the inside of a bottom-closed, hollow cylindrical, solid electrolyte accommodated in an outer case and a positive electrode chamber formed outside the solid electrolyte and containing a porous electrode,impregnated with sulfur which serves as a positive electrode active substance. A cover, which closes the opening portion of the outer case, is fastened to the outer case by use of bolts and the interposition of an insulator.

Sodium secondary battery

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Tokyo, Japan

Akihiro Sawata