Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Engineering, Ltd.

Mitsubishi Power, Ltd.

Toshinobu Yasutake

Masanao Yonemura

Shigeru Nojima

Akihiro Sawata

Yukio Tanaka

Katsumi Nochi

Yoshio Seiki

Kaori Yoshida

Kazuto Kobayashi

Masaki Iijima

Hiroshi Yoshioka

Hiroyuki Osora

Tetsuya Imai

Keiji Fujikawa

Koji Higashino

Akira Oguchi

Kenji Suzuki

Susumu Okino

Setsuo Omoto

Makoto Susaki

Masanori Demoto

Naohiko Ishibashi

Shinya Tachibana

Satoru Watanabe

Tomotsugu Masuda

Hirohisa Yoshida

Shuji Fujii

Hyota Abe

Masami Kondo

Nobuki Oka

Hidemasa Kakigami

Noriko Watari

Kazuhiro Iwamoto

Atsushi Kuroyanagi

Syuji Fujii

Tetsuya Shishido

Makoto Yokoyama

Takafumi Kubota

Tomoaki Isobe

A catalyst for COS hydrolysis includes titanium dioxide and a barium compound supported on the titanium dioxide. The catalyst, when expressing Ba and S in the catalyst in terms of BaO and SO, respectively, has a molar ratio of SOto BaO of at least 1. The catalyst converts COS and HO in a raw material gas to COand HS.

Catalyst for hydrolysis of carbonyl sulfide and method of producing same

Provided are: a cleaning agent for a denitration catalyst; and a denitration catalyst regeneration method and a denitration catalyst regeneration system which make it possible to efficiently remove matter adhering to a surface of a catalyst and to greatly restore catalytic performance. The regeneration method includes: a prewashing step (S) of washing a denitration catalyst with water; a liquid agent cleaning step (S) of immersing the denitration catalyst washed with water in a liquid agent containing an inorganic acid and a fluorine compound; a step of recovering the denitration catalyst from the liquid agent; and a finish washing step (S) of washing the denitration catalyst recovered from the liquid agent with a finish cleaning liquid which is water or sulfamic acid-containing water.

Denitration catalyst regeneration method, denitration catalyst regeneration system, and cleaning agent for denitration catalyst

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

In order to stably use a catalyst for pyrolysis and supply a reformed fuel, the fuel supply system includes a fuel reforming section which pyrolyzes a hydrocarbon system fuel by the heat of the combustion chamber to generate the reformed fuel. The fuel reforming section includes a preheat vaporization section provided on the combustion chamber, and a decomposition reaction section that is provided on the preheat vaporization section and includes the catalyst for pyrolysis. The preheat vaporization section heats the fuel, the decomposition reaction section pyrolyzes the heated fuel to generate the reformed fuel, and the fuel reforming section supplies the reformed fuel to the combustion chamber. The reforming catalyst includes a zeolitic catalyst.

Fuel supply system, scramjet engine and method for operating the same

Provided are a catalyst for hydrolysis and use of a titanium dioxide-based composition which are capable of removing COS and HCN simultaneously at high degradation percentages. The catalyst for hydrolysis is a catalyst for hydrolysis of carbonyl sulfide and hydrogen cyanide, having at least: an active component containing, as a main component, at least one metal selected from the group consisting of barium, nickel, ruthenium, cobalt, and molybdenum; and a titanium dioxide-based support supporting the active component.

Catalyst for hydrolysis of carbonyl sulfide and hydrogen cyanide and use of titanium dioxide-based composition

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.

A NOx removal catalyst for high-temperature flue gas according to the present invention is a NOx removal catalyst for high-temperature flue gas that contains nitrogen oxide in which tungsten oxide with the number of molecular layers of tungsten oxide (WO) being five or less is supported on a complex oxide carrier containing titanium oxide. Even when high-temperature denitration is continued, a bonding force with a carrier of WOcan be properly maintained and volatilization can be suppressed while maintaining a high NOx removal performance. For example, the NOx removal catalyst is particularly suitable for reducing and removing nitrogen oxide contained in high-temperature gas discharged from a thermal power plant and a high-temperature boiler.

NOx removal catalyst for high-temperature flue gas, manufacturing method thereof, and NOx removal method for high-temperature flue gas

A CO shift catalyst according to the present invention reforms carbon monoxide (CO) contained in gas. The CO shift catalyst is prepared from one or both of molybdenum (Mo) and cobalt (Co) as an active ingredient and an oxide of one of, or a mixture or a compound of, titanium (Ti), silicon (Si), zirconium (Zr), and cerium (Ce) as a carrier for supporting the active ingredient. The CO shift catalyst can be used in a halogen-resistant CO shift reactor () that converts CO contained in gasified gas () generated in a gasifier () into CO.

CO shift catalyst, CO shift reactor, and method for purifying gasified gas

A CO shift catalyst according to the present invention is one that reforms carbon monoxide (CO) in gas. The CO shift catalyst includes: active ingredients including one of molybdenum (Mo) and iron (Fe) as a main ingredient and one of nickel (Ni) and ruthenium (Ru) as an accessory ingredient; and one or at least two oxides of titanium (Ti), zirconium (Zr), and cerium (Ce) as a carrier supporting the active ingredients. The CO shift catalyst can be used for a CO shift reactorthat converts CO in gasified gasproduced in a gasifierinto CO.

To provide a CO conversion catalyst for use in a fuel cell in a DSS operation, which includes a Cu&#x2014;Al-Ox catalyst, in which the Cu&#x2014;Al-Ox catalyst has a boehmite phase formed in at least a part of the Cu&#x2014;Al-Ox catalyst. The CO conversion catalyst has an improved degree of dispersion of Cu metal by the boehmite phase formed therein, and hence can be prevented from sintering of copper caused due to steam, thereby achieving improved durability with respect to the function as the CO conversion catalyst.

CO conversion catalyst for use in fuel cell in DSS operation, method for producing the same, and fuel cell system

There is provided a catalyst for dimethyl carbonate synthesis which has a high conversion rate under the supercritical condition of COand can be handled easily. The catalyst for dimethyl carbonate is obtained by loading SOor POon a carrier composed of a compound having a solid acid site, and is used to produce dimethyl carbonate from acetone dimethyl carbonate and COin a supercritical state. The component having a solid acid site is preferably one or more of ZrO, AlO, and TiO.

Method for dimethyl carbonate synthesis

Catalyst for dimethyl carbonate synthesis

Growing community of inventors

Tokyo, Japan

Toshinobu Yasutake