1
Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: Selective catalytic reduction type catalyst. N E Chemcat Corporation, Edwards Angell Palmer & Dodge, March 15, 2011: US07906449 (6 worldwide citation)

The present invention is a selective catalytic reduction type catalyst for purifying nitrogen oxides in exhaust gas exhausted from lean combustion engines using ammonia or urea as a reducing agent, it is provided with a selective catalytic reduction type catalyst The catalyst comprises a lower-layer ...


2
Takashi Hihara, Tomoaki Ito, Yasushi Tanaka, Makoto Nagata: Selective reduction catalyst, and exhaust gas purification device and exhaust gas purification method using same. N E Chemcat Corporation, Westerman Hattori Daniels & Adrian, June 3, 2014: US08741240 (6 worldwide citation)

The selective reduction-type catalyst effectively purifies nitrogen oxides contained in exhaust gas from a lean-burn engine such as a boiler, a gas turbine or a lean-burn engine, a diesel engine, even under high SV, as well as having small pressure loss, by supplying by spraying urea water or ammoni ...


3
Makoto Nagata, Takashi Hihara: NOx reduction catalyst having excellent low-temperature characteristics. N E Chemcat Corporation, Oblon Spivak McClelland Maier & Neustadt P C, March 10, 2009: US07501105 (4 worldwide citation)

A NOx removal catalyst comprising a carrier that includes a zeolite, and preferably a β-zeolite, that has undergone ion exchange with iron, and ferric oxide supported on the carrier. This NOx removal catalyst can be used favorably in a selective catalytic reduction process wherein nitrogen oxides co ...


4
Tomoaki Ito, Toshinori Okajima, Takashi Hihara, Makoto Nagata: Ammonia oxidation catalyst, exhaust gas purification device using same, and exhaust gas purification method. N E Chemcat Corporation, Westerman Hattori Daniels & Adrian, April 21, 2015: US09011809 (2 worldwide citation)

An ammonia oxidation catalyst being superior in heat resistance and capable of suppressing by-production of N2O or NOx. The ammonia oxidation catalyst is made by coating at least two catalyst layers having a catalyst layer (lower layer) including a catalyst supported a noble metal on an inorganic ba ...


5
Susanne Stiebels, Claudia Wendt, Torsten Neubauer, Edith Schneider, Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: in gas streams, Fe-BEA/Fe-MFI mixed zeolite catalyst and process for the treatment of NO. BASF SE Ludwigshafen, N E CHEMCAT CORPORATION, Melanie L Brown, July 14, 2015: US09079162

Disclosed is a catalyst, preferably for use in selective catalytic reduction (SCR), said catalyst comprising one or more zeolites of the MFI structure type, and one or more zeolites of the BEA structure type, wherein at least part of the one or more zeolites of the MFI structure type and at least pa ...


6
Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: Selective catalytic reduction type catalyst, and exhaust gas purification equipment and purifying process of exhaust gas using the same. N E Chemcat Corporation, Edwards Wildman Palmer, James E Armstrong IV, Nicholas J DiCeglie Jr, January 28, 2014: US08636959

The present invention is an exhaust gas purification catalyst equipment, and a method of use thereof, formed by arranging a selective catalytic reduction type catalyst for purifying nitrogen oxides in exhaust gas exhausted from lean combustion engines using ammonia or urea as a reducing agent, it is ...


7
Makoto Nagata, Takashi Hihara: Nox Reduction Catalyst Having Excellent Low-Temperature Characteristics. Oblon Spivak Mcclelland Maier & Neustadt PC, October 25, 2007: US20070248517-A1

A NOx removal catalyst comprising a carrier that includes a zeolite, and preferably a β-zeolite, that has undergone ion exchange with iron, and ferric oxide supported on the carrier. This NOx removal catalyst can be used favorably in a selective catalytic reduction process wherein nitrogen oxides co ...


8
Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: Selective catalytic reduction type catalyst, and exhaust gas purification equipment and purifying process of exhaust gas using the same. Ne Chemcat Corporation, Edwards Angell Palmer & Dodge, November 20, 2008: US20080286184-A1

The present invention relates to a technology to purify nitrogen oxides contained in exhaust gas exhausted from lean combustion engines such as diesel engine with ammonia and a selective catalytic reduction type catalyst, and an object of the present invention is to provide a selective catalytic red ...


9
Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: Selective catalytic reduction type catalyst, and exhaust gas purification equipment and purifying process of exhaust gas using the same. Ne Chemcat Corporation, Edwards Angell Palmer & Dodge, August 5, 2010: US20100196221-A1

The present invention is an exhaust gas purification catalyst equipment, and a method of use thereof, formed by arranging a selective catalytic reduction type catalyst for purifying nitrogen oxides in exhaust gas exhausted from lean combustion engines using ammonia or urea as a reducing agent, it is ...


10
Ryuji Ando, Takashi Hihara, Yasuharu Kanno, Makoto Nagata: Exhaust gas purification method using selective reduction catalyst. Ne Chemcat Corporation, Edwards Angell Palmer & Dodge, October 29, 2009: US20090269265-A1

An exhaust gas purification method which is capable of purifying nitrogen oxide to be included in exhaust gas from a lean burn engine such as a boiler, a gas turbine or a lean-burn-type gasoline engine, a diesel engine, effectively, in particular, even at low temperature, with spray-supplying an aqu ...