Abstract

The oil and automotive industries are implementing joint efforts to deliver better quality fuels and more energy efficient and environmentally friendly cars. This session will bring together experts from the energy and automotive industries to present an overview of the latest development in alternative automotive fuels, including electricity, natural gas, hydrogen and biofuels. The session will address the past achievements and future perspectives in fuel quality, energy efficiency and cost reduction and how the increasing demand for automotive fuels will be met in the foreseeable future.

Summary

Hydrotreating is a novel alternative method for esterification for producing renewable diesel fuel from vegetable oils and animal fats. Since feedstock base is the same for ester biodiesel (FAME) and hydrotreated vegetable oil (HVO), the questions regarding e.g. sustainability are the same for both technologies. In case of HVO the quality of the produced fuel is nondependent on the feedstock and therefore the availability of suitable feedstock is better for HVO compared to methyl ester biodiesel. Sustainability requirements are similar for both technologies.

HVO is a paraffinic hydrocarbon meaning that it does not have any "blending wall" when added into diesel fuel. Due to zero aromatics, very high cetane number, low density and reasonable distillation range HVO is a valuable blending component offering even possibilities to upgrade off-spec middle distillate fractions to meet commercial diesel fuel specifications. Cold properties of HVO can be adjusted from -5 to -40°C cloud point by isomerisation process.

HVO functionality in fuel logistics is similar to fossil diesel fuel due to good storage stability and water separation properties. In engines HVO is even better than base diesel fuel for deposit formation, engine oil compatibility, exhaust emissions and durability of exhaust aftertreatment device.

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