Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Andreas Roppertz"'
Publikováno v:
Emission Control Science and Technology. 5:317-327
The selective catalytic reduction (SCR) is widely used for the NOx removal from the oxygen-rich exhaust gases of diesel passenger cars and trucks. SCR implies the reduction of NOx by NH3 originated from AdBlue, which is an aqueous solution of urea (3
Publikováno v:
SSRN Electronic Journal.
The classical approach for the synthesis of catalysts based on biogenic silica from rice husk or rice straw involves a high temperature (600 °C) calcination step to remove the organic matrix from the silica backbone. The remaining silica can then be
Publikováno v:
Biomass and Bioenergy. 155:106282
The classical approach for the synthesis of catalysts based on biogenic silica from rice husk or rice straw involves a high temperature (600 °C) calcination step to remove the organic matrix from the silica backbone. The remaining silica can then be
Autor:
Sven Kureti, Philipp Langenfeld, Sven Füger, Mandy Wackerhagen, Andreas Roppertz, Martin Goldbach
Publikováno v:
Chemical Engineering & Technology. 40:2035-2043
Selective catalytic reduction (SCR) of NOx by AdBlue and NH3 on monolithic V2O5/WO3/TiO2 catalyst was studied under flow conditions realistic for diesel exhaust. The tests provided same standard and fast SCR for AdBlue and NH3 from 150 to 350 °C. Fo
Autor:
Sven Kureti, Stefan Mangold, Jan-Dierk Grunwaldt, Christoph R. Jacob, Andreas Roppertz, Alexey Boubnov, Boris Reznik, Matthew D. Kundrat
Publikováno v:
Applied Surface Science. 386:234-246
Iron oxide centres are structurally investigated in 0.1% Fe/γ-Al 2 O 3 , which is known as highly active catalyst, for instance in the oxidation of CO. The sample was characterised by using X-ray absorption spectroscopy (XAS) in terms of X-ray absor
Publikováno v:
Topics in Catalysis. 60:199-203
This paper addresses the NOx removal from diesel exhaust by using urea-SCR technique with focus on critical operating conditions, particularly low temperatures. The investigations were performed on a special laboratory test bench enabling the supply