The Petroleum Oil and Gas Corporation of South Africa (pty) Ltd.

Maxwell Paul Thomas

Cyril David Knottenbelt

Carl Dunlop

Kholekile Zono

Johan Stander

Lehlohonolo Aubrey Motsekoa

This invention relates to alternative diesel fuels with improved cold flow properties. The alternative fuel may be a biodiesel which typically comprises fatty acid methyl or ethyl esters; or a diesel fuel blend including diesel fuel derived from a Fischer-Tropsch (FT) reaction and possibly comprising or containing crude-derived diesel fuel and biodiesel. The cold flow properties are improved by adding a higher alcohol component which is not a naturally occurring component of the biodiesel, nor the diesel fuel.

Biodiesel fuels

The invention provides synthetically derived distillate kerosene produced by catalytic conversion of Fisher-Tropsch derived light olefins to distillates (COD) and hydrotreating thereof. The kerosene boils in the range of about 170 to 250&#xb0; C. and includes less than 10% n-paraffins, more than 75% iso-paraffins and less than 1% aromatics.

Synthetically derived illuminating and heating paraffin oil

The invention provides a low aromatic producing process for catalytical conversion of Fisher-Tropsch derived olefins to distillates (COD), which process includes the step of contacting Fisher-Tropsch derived olefins with a zeolite type catalyst at pressures of more than 50 barg.

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Mossel Bay, South Africa

Maxwell Paul Thomas