发明名称 |
LOW TEMPERATURE OXIDATION OF AMMONIA IN NITRIC ACID PRODUCTION |
摘要 |
Ammonia in a gas stream comprising oxygen and nitrogen may be effectively completely oxidized to a mixture of NO and NO2 for further processing to nitric acid. The gas stream is flowed over fine particles of La1-xSrxCoO3 and/or La1-xSrxMnO3, and/or La1-xSrxFeO3 where x=about 0.1, 0.2, or 0.3. The particles are supported as catalyst layers on gas stream-contacting surfaces of a flow-through catalyzed oxidation reactor. These relatively inexpensive perovskite-type materials may be used to promote oxidation of ammonia at temperatures below about 450° C. to about 500° C. to selectively produce a mixture of NO and NO2. This mixture is suitable for further oxidation to NO2 for adsorption into water to make nitric acid. |
申请公布号 |
US2012183467(A1) |
申请公布日期 |
2012.07.19 |
申请号 |
US201113006460 |
申请日期 |
2011.01.14 |
申请人 |
QI GONGSHIN;LI WEI;SCHMIEG STEVEN J.;KIM CHANG H.;BROWN DAVID B.;GM GLOBAL TECHNOLOGY OPERATIONS LLC |
发明人 |
QI GONGSHIN;LI WEI;SCHMIEG STEVEN J.;KIM CHANG H.;BROWN DAVID B. |
分类号 |
C01B21/38 |
主分类号 |
C01B21/38 |
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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