This paper describes a series of vehicle emission tests on a port-fuel injected lean-burn
engine, to determine the preferred aftertreatment configuration yielding the most efficient …

This paper charts the development of three three-way catalyst (TWC) and four lean-NOx trap
(LNT) formulations in four vehicle systems over a four-year period. All LNTs were installed in …

A high-efficiency NOx aftertreatment system has been proposed for use in Diesel engines.
This system includes a Lean NOx Trap (LNT) in series with a Selective Catalyst Reduction …

There is a continuing interest in the development and application of lean burn gasoline
engine systems, such as port fuel injected (PFI) and gasoline direct injected (GDI) engines …

NOx reduction product speciation during regeneration of a fully formulated lean NOx trap
catalyst has been investigated using a bench-scale flow reactor. NH³ and N₂O were both …

For the regeneration of the Lean NOx Trap (LNT) a rich air-to-fuel ratio must be generated.
This operation is very critical and has low combustion stability, especially in low load …

Program goals for the Advanced Reciprocating Engine Systems (ARES) program of the
Department of Energy include efficiency and environmental goals. Lean-burn natural gas …

The implementation and development efforts of lean NOx trap catalysts for heavy-duty
applications decreased a number of years ago. Most heavy-duty engine manufacturers …

The Lean NOx Trap (LNT) is an aftertreatment device used to attain a reduction in nitrogen
oxide emissions for Diesel and lean burn engines. The LNT is typically used as a storage …

A NOx trap catalyst was evaluated in a light-duty diesel engine bench under steady-state
speed/load conditions with alternating lean and rich exhaust streams. The NOx conversion …