FIELD: motors and pumps.
SUBSTANCE: invention relates to an exhaust system for treating exhaust gas from an internal combustion engine. Exhaust system comprises a three-way catalyst (TWC), a fuel reformer catalyst located downstream of the TWC, and a fuel supply means located upstream of the fuel reformer catalyst, while the first portion of the exhaust gas bypasses the TWC and contacts the fuel reformer catalyst in the presence of fuel added from the fuel supply means to form a gaseous reformate stream, and the second portion of the exhaust gas is contacted with the TWC and is then utilized to heat the fuel reformer catalyst before being expelled to atmosphere, while the gaseous reformate stream is recycled to the engine intake system.
EFFECT: invention provides improved heat exchange and maximum heat removal of the exhaust gas in order to improve catalytic reforming.
8 cl, 2 dwg, 4 tbl, 2 ex
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