Use of experimental design in development of a catalyst system

• Published in: Catalysis today Vol. 100; no. 3; pp. 243 - 248
• Main Authors: Sjöblom, Jonas, Papadakis, Klaus, Creaser, Derek, Odenbrand, C.U. Ingemar
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Amsterdam Elsevier B.V 2005; Elsevier Science
• Subjects: Bypass; Catalysis; Chemical Engineering; Chemistry; Design of experiments; DoE; Engineering and Technology; Exact sciences and technology; Experimental design; Fuel penalty; General and physical chemistry; Injection parameters; Kemiteknik; NO x storage and reduction; NOx storage and reduction; NSR; System optimization; Teknik; Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry; Injection parameters; Experimental design; Bypass; Fuel penalty; DoE; NSR; Design of experiments; NO x storage and reduction; System optimization; Nitrogen oxide; NOx storage and reduction; Optimization; Chemical reduction; Heterogeneous catalysis; Storage; Fuel; Catalyst
• ISSN: 0920-5861; 1873-4308
• DOI: 10.1016/j.cattod.2004.09.066

NO
x
storage and reduction experiments have been performed with stationary operation of a heavy-duty diesel engine rig. An optimization of the NO
x
reduction performance has been done using experimental design. The adjustable parameters in this study were cycle time, injection time, injection rate and bypass time (period of reduced flow through catalysts). NO
x
was reduced by 50–60% (3.3–4.1
g/kWh) with a fuel penalty below 5%. It was shown that experimental design was efficient for optimizing the NO
x
reduction and this systematic approach enabled important conclusions to be drawn about the system performance.