With almost zero sulphur, GTL diesel is a high performance, low emissions product.
Compatible with existing diesel engines either in neat form or as a premium blendstock, GTL diesel can achieve particulate emission reductions of up to 40%.
This delivers significant air quality advantages. Its high cetane number, 70, compared to a diesel standard of approximately 55, makes for cleaner and more complete combustion, improves cold start properties and cuts down noise. As well as enhancing performance, high cetane also means less buildup of deposits in the engine which reduces engine wear and extends engine life. On a full life cycle analysis basis, GTL dieselís overall emissions profile is at least as good as that of diesel produced in a modern refinery and possibly
GTL diesel also delivers value to the refiner as well as the end user. As a blendstock it can help the refiner to extend the diesel pool to meet growing demand, upgrade lower grade material, enable increased biodiesel inclusion, increase ultra low sulphur diesel production capacity and enable reformulated diesel blending.
GTL base oils
Base oils account for approximately 90% of finished lubricant volumes and GTL base oils stand out in their class. With GTL technology it is possible to produce a Group 3+ synthetic product at a Group 1 conventional cost. GTL base oils are further distinguished from their
crude-derived equivalent by an improved tolerance for high temperatures. This quality has made them of special interest to vehicle manufacturers for whom
higher operating temperatures are becoming an increasing feature of modern drivetrains in a bid to reduce emissions.
The enhanced durability of GTL base oils extends lubricant life and oil drain intervals. GTL base oils are a high value product for the producer and have a
tangible value for the consumer.
GTL kerosene offers the world's airline operators a cost-effective means of improving their emissions profile. Synthetic fuels have been a feature of South African aviation for many years but in terms of performance and reduced emissions, GTL has the potential to surpass anything so far achieved. GTL kerosene has now been cleared for use as up to 50% blendstock, unlocking yet another high value and enduring global market.
The product is well ahead of any competitor in its class. GTL naphtha is highly paraffinic, with virtually no aromatics or sulphur and negligible metallic contaminants. Light paraffinic naphthas are the most efficient liquid feedstocks for ethylene cracking and ethylene is one of the basic building blocks of the petrochemical industry; the precursor of widely used plastics such as polyethylene, polystyrene and other derivatives.
GTL naphtha paraffin content is typically 98%, which is considerably higher than the 65 Ė 75% of typical open-spec naphtha and 85% of typical full-range naphtha. It is even higher than the 92% paraffin content of Saudi A-180, which
is one of the best products available for this application. A further advantage is the low coking/fouling rate for furnace tubes during cracking.