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Development of new Sulphur resistant Storage-reduction Catalytic de vices for emissions from engines with lower fuel Consumption

Objective



Objectives and content
Lean-burn gasoline and diesel engines can offer very
substantial fuel economies, and hence reductions in CO2
emissions, as compared with stoichiometric gasoline
engines. The crucial factor which differentiates these
various engines is the high concentration of oxygen in
the exhaust gas from lean-burn and diesel engines. As a
consequence, conventional three-way catalysts cannot be
used for the removal of NOx from these engines. There is
an urgent need to develop innovative new approaches to
the removal of NOx from such fuel-efficient engines if
Europe is to maintain its world lead in diesel engine
technology and be able to compete effectively with leanburn gasoline technology from Japan.
The industrial objective of the proposed research is to
develop new innovative multifunctional emission control
systems which would allow fuel-efficient engine
strategies to be operated in the European market with
European specification sulfur-contents of gasoline and
diesel fuels. The intention is to reach the level of
removal of hydrocarbons, CO and NOx required for Euro III
and IV regulations, to be applied in years 2000 and 2005,
with engines having a fuel economy of up to 30% with
respect to current stoichiometric gasoline engines.
The technical objectives are to: design and test possible
storage materials for nitric oxide (NO); investigate
possible catalysts which selectively oxidise NO to NO2
but do not oxidise SO2 to S03; design and develop
materials which can function as sulfur traps, either in a
physically separated form or combined in a fully
integrated way with improved NOx storage materials;
identify the limiting factors in current state-of-the-art
NOxSR (Toyota) systems which influence their
deactivation, sulfur-tolerance, etc; investigate novel
new NOxSR materials in which sulfate species are reduced
at the same time as nitrate species.
The proposed approach will involve a multi-disciplinary
programme of materials synthesis, evaluation under both
stable and nonsteady state kinetic conditions, advanced
characterisation, catalyst engineering, and bench and
engine testing on full-size monolith samples. The
project will bring together into a fully integrated
programme of fundamental research, academic expertise in
solid state chemistry, materials science, chemical
kinetics, surface science, and dynamic catalytic
processes, together with industrial expertise in sol-gel
technology, scale-up manufacturing processes, and
catalyst testing on real engines.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

THE QUEEN'S UNIVERSITY OF BELFAST
Address
Stranmillis Road
BT9 5AG Belfast
United Kingdom

Participants (6)

INSTITUTE FOR APPLIED CHEMISTRY BERLIN-ADLERSHOF E.V.
Germany
Address
5G 9.9,Richard-willstaetter-str. 12
12489 Berlin
INSTM - CONSORZIO INTERUNIVERSITARIO NAZIONALE PER LA SCIENZA E TECNOLOGIA DEI MATERIALI
Italy
Address
Salita Sperone 31 C/o Università Degli Studi Di M
98166 Santagata Messina
JOHNSON MATTHEY PLC (TRADING AS SYNETIX)
United Kingdom
Address
Orchard Road
SG8 5HE Royston,herts
Universiteit Twente
Netherlands
Address

7500 AE Enschede
University of Limerick
Ireland
Address

61 Limerick
VOLKSWAGEN AG
Germany
Address
Berliner Ring 2
38436 Wolfsburg