| 申请日期 | 2025-07-11 | 申请号 | US10590776 |
| 公开（公告）号 | US7597865B2 | 公开（公告）日 | 2009-10-06 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Takayuki Mori; Nobuya Iwami; Takayuki Kumagai; Isamu Kanaya; Hiroki Ueno; Kiminobu Hirata | ||
| 简介 | Provided in a catalyst system are : a first reaction part fitted with a first catalyst containing, as active constituents, at least, a complex oxide consisting of two or more oxides selected from among silica, alumina, titania, zirconia, and tungsten oxide, and a rare earth metal or transition metal (except Cu, Co, Ni, Mn, Cr, and V); and a second reaction part fitted with a second catalyst containing, as active constituents, at least, a noble metal and a silica-alumina type complex oxide. | ||
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