Technology
The joint venture uses closed-loop solvent extraction process originally proven by X-TRAC Energy in Wyoming in 1998, with a full scale production plant. Black Sands Energy has exclusive rights to a technology.
The above-ground extraction process dissolute crushed, 1" minus oil sands materials through contact with a benign non-toxic solvent in an enclosed extractor vessel at temperatures up to 300 °F (149 °C) at near-atmospheric pressures. As the material dissolves, it is passed to a wash chamber where any remaining oil is removed. The oil-free sand is then desolventized with heat, which converts the liquid solvent to a gas, leaving dry solids suitable for mine backfill. The solvent-oil mixture is pumped into a critical unit for the removal of asphalt and oil from the solvent through heating and cooling. The recovered solvent is compressed back to a liquid, cooled and re-circulated to the extractor vessel in an endless loop. The system consists of only few moving parts and it operates on a gravity principle. Since the process does not use water to recover the oil, energy requirements are minimal.
Read more about this topic: Utah Oil Sands Joint Venture
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