Catalytic Technology for Soot and Gaseous Pollution Control
作者： Olaf Deutschmann , Athanasios G. Konstandopoulos
DOI: 10.1002/9783527628148.HOC038
关键词:
摘要: In this chapter, stationary and automotive technologies for gaseous particulate pollution abatement are discussed. Stationary involve the reduction of NOx emissions from exhaust gases power plants, industrial boilers, gas turbines, based on selective catalytic (SCR) using ammonia. control, internal combustion engines represent major source emission NOx, CO, unburned hydrocarbons (HCs), whereas diesel contribute to soot NOx. These pollutants can be minimized with primary measures, example, modification process, additional secondary measures (exhaust purification by catalysts). The most frequent type converter in automobiles is three-way catalyst (TWC) stoichiometric operated gasoline engines, which simultaneously converts HCs. lean-operated removed urea-SCR storage catalysts (NSC). Catalytic CO oxidation an essential reaction TWC NSC, also applied (DOC) that oxidize HCs as well adsorbed onto particles. Diesel filters (DPFs) used remove filtration particles through porous walls filter. DPF application requires regeneration; is, stored particles, accomplished indirect (NO2-assisted) direct (redox metal oxide-based) accumulated DPF. Keywords: Soot; pollution control; catalysis; NOx; emissions; particle filters; three-way catalysts; selective
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