发明名称 |
METHOD OF REGENERATING EXHAUST GAS TREATMENT CATALYST AND EXHAUST GAS TREATMENT CATALYST OBTAINED BY THE METHOD |
摘要 |
Provided is a method of regenerating an exhaust gas treatment catalyst 11 having ash adhered to a surface thereof. The method includes a crushing step sal in which the exhaust gas treatment catalyst 11 is crushed such that 70 to 95 wt% of the whole exhaust gas treatment catalyst 11 becomes coarse pieces 12 having a size exceeding a threshold size S (any value in a range of 0.105 to 1.0 mm); a separating step S2 in which the fragments obtained by crushing the exhaust gas treatment catalyst 11 are separated into the coarse pieces 12 having a size exceeding threshold size S and fine particles 13 having a size not larger than the threshold size S; a pulverizing step S3 in which the coarse pieces 12 thus separated are pulverized to a fine powder having an average particle diameter of not larger than 0.1 mm; a kneading step S4 and a molding step S5 in which the fine powder is kneaded with other raw materials and molded into an exhaust gas treatment catalyst; and a drying step S6 and a calcimine step S7 in which the molded precursor is dried and calcined to thus obtain a regenerated exhaust gas treatment catalyst 14. |
申请公布号 |
CA2706530(A1) |
申请公布日期 |
2009.09.03 |
申请号 |
CA20082706530 |
申请日期 |
2008.10.27 |
申请人 |
MITSUBISHI HEAVY INDUSTRIES LTD. |
发明人 |
OBAYASHI, YOSHIAKI;KIYOSAWA, MASASHI |
分类号 |
B01J23/92;B01D53/94;B01D53/96;B01J38/00 |
主分类号 |
B01J23/92 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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