OXIDATION CATALYST FOR EXHAUST GAS PURIFICATION, CATALYST STRUCTURE FOR EXHAUST GAS PURIFICATION, AND METHOD FOR PURIFYING EXHAUST GAS USING CATALYST STRUCTURE

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United States of America Patent

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14915322

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Abstract

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Provided are an oxidation catalyst for exhaust gas purification that removes toxic materials from exhaust gas emitted from a diesel engine, a catalyst structure for exhaust gas purification that contains the catalyst, and a method for purifying exhaust gas that uses the catalyst structure and can efficiently remove toxic materials from exhaust gas at low temperatures. The oxidation catalyst for exhaust gas purification contains either or both of titania (A) and a zeolite component (B) as a carrier; and a noble metal component (C) supported on the carrier. The zeolite component (B) contains a H-Beta type zeolite in a quantity of not less than 90% by weight relative to the total quantity of the zeolite component (B). The content of each component in the whole catalyst is 55 to 75% by weight for the titania (A), 15 to 25% by weight for the zeolite component (B), and 0.05 to 4% by weight for the noble metal component (C).

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Patent Owner(s)

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N E CHEMCAT CORPORATION4-1 HAMAMATSU-CHO 2-CHOME MINATO-KU TOKYO 105-6124

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  • 2014 Application Filing Year
  • B01J Class
  • 3035 Applications Filed
  • 2524 Patents Issued To-Date
  • 83.17 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201420152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirasawa, Yoshiro Numazu-shi, JP 6 179
Kayada, Yuto Numazu-shi, JP 3 6

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