发明名称 |
Method for removing arsenic compound, method for regenerating NOx removal catalyst, and NOx removal catalyst |
摘要 |
Provided is a practical method for dry-separating arsenic compounds from a used NOx removal catalyst contaminated with arsenic. The method for removing arsenic compounds comprises heat-treating a NOx removal catalyst contaminated with arsenic compounds at a predetermined temperature in a reducing atmosphere while exposing the catalyst to hydrocarbon compounds (except CH4) or oxygen-containing carbon compound. |
申请公布号 |
US9114391(B2) |
申请公布日期 |
2015.08.25 |
申请号 |
US201214007940 |
申请日期 |
2012.02.24 |
申请人 |
MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
发明人 |
Kiyosawa Masashi;Kobayashi Norihisa |
分类号 |
B01J38/02;B01J38/04;B01J21/20;B01J23/92;B01J38/12;B01J21/06;B01J23/22;B01J23/30 |
主分类号 |
B01J38/02 |
代理机构 |
Westerman, Hattori, Daniels & Adrian, LLP |
代理人 |
Westerman, Hattori, Daniels & Adrian, LLP |
主权项 |
1. A method for removing an arsenic compound, comprising heat-treating a NOx removal catalyst contaminated with the arsenic compound at a predetermined temperature in a reducing atmosphere while exposing the catalyst to hydrocarbon compounds except CH4 or oxygen-containing carbon compounds. |
地址 |
Kanagawa JP |