A trap for an energy conversion device comprises a trapping system comprising
filter element and a trap element, and fluidly coupled to a reforming system. The
trapping system is monitored by a combination of devices including an on-board
diagnostic system, a temperature sensor, and a pressure differential sensor, which
can individually or in combination determine when to regenerate the trapping system.
The method for trapping sulfur and particulate matter using the trapping system
comprises dispensing fuel into the energy conversion device. The fuel is processed
in a reformer system to produce a reformate. The reformate is introduced into the
trapping system and filtered to remove particulate matter and sulfur.