After separation, the final products from the FT process are a heavier ‘wax’ stream (nC20 – nC100+), which is a solid at room temperature, and a lighter liquid stream (nC5 – nC25), which forms a majority of the paraffin product.
The reaction water is removed as a separate stream.
The catalyst’s selectivity achieves high product purity and there is no need to top up or regenerate the catalyst once installed. There is no catalyst attrition and therefore no particulate contamination of the wax.
Mild hydrocracking upgrades the paraffins to a synthetic crude mixture. This is achieved using a commercially produced catalyst in a proprietary reactor design that is specifically tailored to process our FT products.
The upgrading process typically yields (by weight) 80% middle distillate – predominantly diesel – and 20% naphtha. Any unconverted wax is recycled to extinction.
Distillation then separates the final products.
Our FT process can accommodate variable plant sizes which can range from 3-5kbpd to >20kbpd. It can operate with a single line of synthesis gas generation at scales of up to 20,000 barrels per day (bpd), with larger capacities achievable with multiple parallel synthesis gas production lines.
Our flexible technology can process syngas derived from various hydrocarbon sources, including:
- Coal (including underground coal gasification).
- Biomass and refinery residues. In this case our process generates renewable liquid fuels using appropriate gasifiers coupled with our FT process.
While the upgrading process typically produces around 80% diesel and 20% naphtha, it can also be configured to produce jet fuel/kerosene and base oil feedstock for lubricant manufacturers.