This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Effective particulates reduction in diesel engines through the use of fuel catalyzed particulate filters
Technical Paper
2000-05-0286
Sector:
Language:
English
Abstract
There is increasing worldwide interest in diesel particulate
filters (DPF) because of their proven effectiveness in reducing
exhaust smoke and particulate emissions. Fine particulates have
been liked to human health. DPF use requires a means to secure the
burn-out of the accumulated soot, a process called regeneration. If
this is not achieved, the engine cannot continue to operate. A
number of techniques are available, but most are complex, expensive
or have a high electrical demand. The use of fuel additives to
catalyze soot burn-out potentially solves the problem of securing
regeneration reliably and at low cost.
Work on organo-metallic fuel additives has shown that certain
metals combine to give exceptional regeneration performance. Best
performance was achieved with a combination of iron and
strontium-based compounds. Tests were carried out on a bed engine
and on road vehicles, which demonstrated effective and reliable
regeneration from a low dose fuel additive, using a single passive
DPF. No control valves, flow diverters, heaters or other devices
were employed to assist regeneration. Independent particle size
measurements showed that there were no harmful side effects from
the use of the iron-strontium fuel additive.