Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 January 1994--31 March 1994
Chen, JP; Cheng, LS; Hausladen, MC; Kikkinides, ES; Yang, RT
| HERO ID | 1510073 |
|---|---|
| In Press | No |
| Year | 1994 |
| Title | Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 January 1994--31 March 1994 |
| Authors | Chen, JP; Cheng, LS; Hausladen, MC; Kikkinides, ES; Yang, RT |
| Volume | GRA and I |
| Issue | 21 |
| Page Numbers | 18 |
| Abstract | Sponsored by Department of Energy, Washington, DC. the past quarter, progress has been made in four tasks as summarized below: Task 1: A delaminated Fe(sub 2)O(sub 3) pillared clay was synthesized and carefully characterized. The chemical composition was measured by ICP atomic emission spectrometry. The structural changes in the clay as well as the iron oxide particle sizes were characterized by X-ray diffraction techniques. Task 2: The Selective Catalytic Reduction (SCR, i.e., NO reduction with NH(sub 3)) activities of the delaminated pillared clay were tested and compared with four other most active SCR catalysts: a commercial V(sub 2)O(sub 5) + WO(sub 3)/TiO(sub 2) catalyst, a Fe(sub 2)O(sub 3)-pillared clay, and two supported Fe(sub 2)O(sub 3) catalysts (on Al(sub 2)O(sub 3) and TiO(sub 2)). The delaminated Fe(sub 2)O(sub 3) pillared clay exhibited the highest SCR activities. Catalyst stability test showed that the delaminated sample was also stable. Task 3: To further increase the SCR activity of the delaminated pillared clay, Cr(sub 2)O(sub 3) was doped as a promoter by incipient wetness. Task 4: Deactivation effects of SO(sub 2) and H(sub 2)O on the SCR activities of the delaminated Fe(sub 2)O(sub 3) pillared clay were studied, and compared with other SCR catalysts. The delaminated clay catalyst showed the least deactivation. |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Journal: Govt Reports Announcements & Index ISSN: |
| Is Public | Yes |
| Keyword | Catalysts; Chromium Oxides; Iron Oxides; Nitric Oxide; Tungsten Oxides; Vanadium Oxides; Selective Catalytic Reduction; Aluminium Oxides; Catalyst Supports; Catalytic Effects; Chemical Preparation; Experimental Data; Poisoning; Progress Report; Sulfur Dioxide; Titanium Oxides; Water Vapor; Tables(data); Air pollution control; EDB/010800; EDB/400201 |