Bitumen Export Group is a jet fuel supplier (Jet A, Jet A1 & TS-1), to “commercial airline” and general jet fuel customers worldwide.
For many locations this will be Jet A-1, which conforms to the latest version of the Aviation Fuel Quality Requirements for Jointly Operated Systems (AFQRJOS). AFQRJOS comprises the most stringent requirements of the Defense Standard 91/91 and ASTM D-1655 specifications.
We also supply Jet A conforming to ASTM D-1655 in the US and other specifications of jet fuel, for example TS-1, to other markets.
Jet fuels are specialized products that are manufactured according to very tightly controlled specifications. Almost all jet fuels are derived from crude oil in refineries so whichever grade (or specification) of jet fuel you require, they are all produced in much the same way.
Our vision is to be the most trusted and highest quality global supplier of choice, offering comprehensive supply chain solutions to customers through understanding, anticipating and pro-actively addressing their requirements. We are highly focused on all aspects of operational integrity, and our goal is to be the industry leader in safety, supply reliability, and product quality.
At refineries, a complex combination of processes take place, converting the raw materials into high value products.
The most fundamental refining process is distillation which separates the raw materials into various streams defined by their boiling points. The distillate streams are then further processed to remove any unwanted components, such as acids, sulphurs and metals, before they are selectively blended to yield the desired products. The blending ratio of these streams is the main difference between the Jet A and Jet A-1 grades.
At this point additives are injected into many products to improve fuel performance and stability in order to meet the requirements of the different specifications.
Jet fuels have a typical boiling range of 150-270°C, (which is somewhere between the boiling ranges of the gasoline and diesel we use in our road vehicles), and typically account for around 10-15% of total refinery production (3000 tonnes per day for a medium to large refinery!).
However, actual yields are largely dictated by the quality and composition of the refineries feedstocks, and the demand for other fuels in that market.
Today’s kerosene jet fuels have been developed from the illuminating kerosene used in the early gas turbine engines. These engines needed a fuel with good combustion characteristics and a high energy content. The kerosene type fuels used in civil aviation nowadays are mainly Jet A-1. Jet A-1 kerosene fuel is suitable for most turbine-engined aircraft.
Avgas is used in small piston engine powered aircraft within the General Aviation community. Predominately activities such as private pilots, flight training, flying clubs and crop spraying. Piston engines operate using the same basic principles as spark ignition engines of cars, but they have a much higher performance requirement.
In today’s general aviation community there are only two main Avgas grades: 100 and 100LL.
(1) Jet A-1 is similar to Jet A in all properties except Freezing Point at -47°C max.
(2) Fuel shall be visually free of undissolved water, sediment and suspended matter.
(3) Simulated distillation by ASTM D2887 allowed for Jet A/A-1; test limits in parentheses.
(4) Results obtained by method D3828 may be may be up to 2°C lower than those obtained by method D56.
(5) Other Freezing Points may be agreed upon between supplier and purchaser.
(6) With method D4305, use procedure A only. This method shall not be used on samples with viscosities greater than 5.0 CST at -20°C.
(7) D5972 may produce a higher (warmer) result than D2386 on wide-cut fuels.
(8) Test at control temperature of 260°C, but if requirements are not met, the test may be conducted at 245°C. In this case report results at both temperatures.
(9) No abnormal or peacock colour deposits allowed.
(10) For fuel without static dissipating additive. For fuel containing static dissipator additive, a minimum MSEP rating of 70 applies. Limits apply only at point of manufacture.
(11) When electrical conductivity additive is specified by the purchaser, conductivity shall be 50-450 pS/m under the conditions at point of delivery.
(12) DiEGME additive conforming to requirements of D4171, Type III, may be used at 0.10-0.15 vol % concentration.
(13) Stadis 450 additive limited to 3 mg/L max. at manufacture, and cumulative total 5 mg/L max. on retreatment.