Expander’s technology will be a “key player” in the reduction of Canada’s carbon footprint.
Rapid growth is anticipated in renewable energy resources with particular interest in next generation synthetic fuels. The world supply of oil is becoming heavier, higher in sulfur and more difficult to extract and refineries are having more problems processing the heavy mix. Expander’s SynDiesel® can be used as a drop-in fuel or when mixed with traditional diesels as a blendstock can substantially increase the quality of the resultant fuel while significantly reducing emissions.
Refinery diesel specifications require a cetane rating of 40 to 55 with maximum sulfur content of 15 ppm (ASTM-D975). Fischer-Tropsch (F-T) fuel exceeds 70 cetane, and has zero sulfur and virtually no aromatics. In modern diesel engines the use of SynDiesel® results in a substantial reduction in NOx and particulates.
The following is a Jacobs Consultancy study on the Life Cycle Assessment of WTW GHG Emissions for Crude and Bitumen to RBOB which shows Alberta Crude Oil as being the Dirtiest oil in the world. Expander has modified this chart by adding the last two columns. This modified chart shows the results of implementing the FTCrude® process in bitumen upgrading whereby Alberta’s bitumen is converted into the Cleanest oil in the world.
Expander’s patented Enhanced Fischer-Tropsch® (EFT®) process maximizes the production of diesel fuel and eliminates low value by-products through the retention of carbon throughout the process from feedstock to final product. As the EFT® process keeps carbon in the fuel it does not require carbon capture to minimize CO2 emissions.
Today’s fossil fuel extraction challenges include the need for fresh river water in processing and steam generation. In all facets of oil sands production net fresh water use is an average of 3.4 bbls of water/bbl of oil produced by mining operations and less than .5 bbls of fresh water/bbl of oil produced by in situ operations. In a typical 50,000 bpd upgrader, our FTCrude® process will produce 8,000 bpd of fresh water, or about 1 bbl water per bbl bitumen upgraded. This is a 30% reduction in the amount of additional water required for a typical Steam Assisted Gravity Drainage (SAGD) process.
In addition, Expander’s FTCrude® upgrading process is expected to reduce GHG from bitumen and heavy oil upgrading. In the carbon-rejection upgrading process (Coker), the upgrader produces approximately 45 tonnes of CO2 per thousand bbls of SCO throughput. In the typical hydrogen-addition upgrading process, the upgrader produces greater than 50 tonnes of CO2 per thousand bbls of SCO.
In comparison, the FTCrude® process would produce approximately 12 tonnes of CO2 per bbl of SCO, or about a 70% reduction in upgrading process generated CO2. Mining and SAGD still account for additional CO2 production.
Canadian Association of Petroleum Producers (CAPP) is forecasted the 2012 production of crude bitumen to be 1.8 million bbls/day, resulting in 32 million tonnes of CO2 being produced through the traditional upgrading process.