We will produce renewable diesel and sustainable aviation fuels using a synthetic fuel production technology called Fischer Trospch. This process has been used extensively worldwide at full commercial scale with fossil feedstocks such as coal and natural gas. These fuels are identical to the renewable product we will produce, and are commonly referred to as FT Diesel, GTL diesel, or FT-SPK (FT jet fuel).

There are hundreds of thousands of Barrels Per Day of FT fuels in production and use worldwide. FT fuels have seen widespread commercial use since the 1970s, with well in excess of 1,500,000,000 billion barrels produced and used in that time. There are millions of miles of real-world road testing that have been performed, demonstrating the superior quality and performance of FT fuels.

These are true drop-in replacement fuels, delivering the same performance, in the same engines, through the same fueling infrastructure, with no modifications necessary, and no compatibility issues, at the same price as the conventional diesel and jet fuels that they are replacing.

Fuel Properties

Fisher Tropsch fuels are synthesized out of pure hydrogen and carbon, and feature extremely low levels of impurities such as sulfur and aromatics. They also have a very high cetane number (a measure of combustion quality).

FT fuels have demonstrated excellent cold-flow performance in both terrestrial and aviation applications.

Testing has demonstrated no issues with injector fouling, in both very hot and cold environments.

Long-term tests have shown superior performance in soot and metals loading in engine oil.

In aviation applications, the lack of soot in the exhaust post-combustion (see the yellow flame of conventional fuel vs the blue flame of the synthetic fuel above) results in lower heat radiation to engine components, delivering significant reductions in operating temperatures of the engines. This delivers very material benefits to engine longevity, particularly in high performance applications such as military aircraft.

Lower weight compared to conventional jet fuel also delivers advantages to payload and range.

Property Illinois Clean Fuels Synthetic FT Diesel ​Class 1 Railroad Fuel Spec
US Requirement (ASTM D975)
EU requirement
(EN 590:2009)
Density (kg/m³) 774 <875
820 – 845
Pour Point (°C) -30 < -12 (Summer)

< -18 (Winter)

Cloud Point (°C) -17 < -7 (Summer)

< -9 (Winter)

< - 5
Cold Filter Plugging Point (°C) -21 N/A
< - 15
Cetane no. (D613) 76 ​> 40 >40
> 51
Flash Point (°C) 71 ​> 54 >52
> 55
Sulphur (PPM) < 0.2 ​< 15 <15
< 10
Polyaromatics (% mass) < 0.2 ​< 35 <35
< 11
ASTM D86 T95% (°C) 336 282-338
< 360
Viscosity 40oC, cSt,(ASTM D445) ​3.57 ​1.9 – 4.1
​Lubricity, Unadditized (HFRR, um, ASTM D6079) ​420 - 570 ​520
Lubricity, Additized  (HFRR, um, ASTM D6079) ​210 ​520
Conductivity pS/m (ASTM D2624) ​216 ​>25
BTU Content (ASTM D240) ​132,600 gross, 123,600 net

Detailed information on the fuel, and studies showing it's real-world performance, are available upon request.