Effects of HVO on pollutants emissions of stage V non-road diesel engines
report
HVO (Hydrotreated Vegetable Oil) is a drop-in alternative for regular, mostly fossil, diesel fuel. HVO is marketed for its lower carbon intensity compared to regular diesel fuel, but the use of HVO is also often claimed to result in lower pollutant emissions of particulate matter (PM) and nitrogen oxides (NOx) from the exhaust of diesel engines. Literature provides evidence that for older engines significant reductions of PM emissions can be expected when engines run on HVO. For the impact on NOx, individual cases show mixed effects from zero to reductions up to about 20 %. The effects are reported to diminish when a well-functioning emissions reduction system is present, such as a DPF (Diesel Particle Filter) to reduce particulate matter emissions or a NOx reduction catalyst (SCR, Selective Catalytic Reduction) to reduce NOx emissions. This evidence is mainly available for on-road vehicles, but in general, for non-road engines, there is not much research data. Therefore, the Dutch Ministry of Infrastructure and Water management asked TNO to investigate the effect of HVO on the pollutant emissions of modern Stage V engines, the latest generation of non-road diesel engines with and without emission reduction system. A literature study and measurements have been conducted to increase the understanding
of the effect of HVO on pollutant emissions from these Stage V engines. Data of emission measurements also help to improve the Dutch emissions model for non-road mobile machinery.
of the effect of HVO on pollutant emissions from these Stage V engines. Data of emission measurements also help to improve the Dutch emissions model for non-road mobile machinery.
TNO Identifier
1005922
Publisher
TNO
Collation
52 p.
Place of publication
Den Haag