دورية أكاديمية
The amplification of ammonia by reaction with NO and CO over dual function platinum and palladium catalyst systems with isocyanic acid as an intermediate
| العنوان: | The amplification of ammonia by reaction with NO and CO over dual function platinum and palladium catalyst systems with isocyanic acid as an intermediate |
|---|---|
| المؤلفون: | Cant, Noel W., Chambers, Dean C., Liu, Irene O Y |
| المصدر: | Cant , N W , Chambers , D C & Liu , I O Y 2005 , ' The amplification of ammonia by reaction with NO and CO over dual function platinum and palladium catalyst systems with isocyanic acid as an intermediate ' , Applied Catalysis B: Environmental , vol. 60 , no. 1-2 , pp. 57-63 . https://doi.org/10.1016/j.apcatb.2005.02.021Test |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Ammonia amplification, CeO-SiO, Isocyanic acid hydrolysis, Isocyanic acid synthesis, NO reduction by CO, Pd/SiO, Pt/AlO, Pt/SiO, envir, socio |
| الوصف: | The hypothesis that ammonia concentrations can be amplified by reaction with NO in excess CO to form isocyanic acid (HNCO) which is then hydrolysed back to NH 3 has been tested. With 1000 ppm NO and 400 ppm NH 3 in 3400 ppm CO, the HNCO produced in a dry feed over Pd/SiO 2 and Pt/SiO 2 is sufficient to allow potential multiplications of 1.9 and 2.2, respectively. With Pt/SiO 2 a greater multiplication is possible if water is present since additional HNCO is formed using surface hydrogen generated by the water-gas shift reaction. Isocyanic acid is completely hydrolysed to NH 3 if oxides more active than silica are located downstream, or used to support the platinum group metal, provided excess water is present. An actual amplification of six has been demonstrated starting from 150 ppm NH 3 with CeO 2 /SiO 2 downstream of Pt/SiO 2 . With Pt/Al 2 O 3 , 300 ppm NH 3 can be multiplied by 3.6 in the temperature range 300-450°C. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | https://researchers.mq.edu.au/en/publications/63b4afa0-e1e8-4af5-90fc-e1132de7a205Test |
| الإتاحة: | https://doi.org/10.1016/j.apcatb.2005.02.021Test https://researchers.mq.edu.au/en/publications/63b4afa0-e1e8-4af5-90fc-e1132de7a205Test |
| حقوق: | undefined |
| رقم الانضمام: | edsbas.27974690 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |