Coal Gasification
The project has a Site license with General Electric (GE) to use their proprietary coal gasification technology. As the coal is recieved, a slurry mixture of coal (65% solid coal) and water is produced by wet milling or grinding.  The coal slurry will then be processed in GE’s quench gasifiers using 98% pure oxygen from the air separation unit. A quench gasifier is a type of gasifier that uses water to cool the raw syngas produced in the gasification process, raw syngas and a slag / black water by-product will be produced. The raw syngas will then be cooled, quenched and scrubbed using water, and the slag / black water by-product will be sent to a clean-up unit for furthering processing.  The separated slag by-product is a glassy material that does not generally break down or seep into the soil and constitutes non-hazardous waste under current federal environmental laws.

Clean-up and Carbon Dioxide Removal
The raw syngas produced in the coal gasification step is then delivered to a conditioner for conditioning using a mercury absorber, carbonyl sufide hydrolysis reactor, acid gas removal, or AGR, unit and sulfur beds to achieve the desired syngas feed specification required for the syngas conversion. The project site license is with UOP for use of their Selexol process for AGR.  The acid gas produced by the AGR unit will be used to produce a liquid sulfur product in a Claus sulfur recovery plant.  Carbon dioxide will also be removed, dried, channeled and pressurized.  We are looking for opportunities to monetize the by-products resulting from the syngas clean-up such as CO₂and sulfur.

Syngas conversion
Using Davy Process Technology methanol synthesis process, the syngas is compressed, purified and converted to methanol.  After compression, any remaining impurities are removed and the gas is then passed over a methanol synthesis catalyst and converted to methanol.  The crude methanol is reduced in pressure to remove unconverted gases which are sent to the power block as fuel gas.

Methanol-to-Gasoline
The project will use ExxonMobil's proprietary methanol-to-gasoline (MTG) technology to convert methanol to gasoline.  The methanol exiting the synthesis unit is dehydrated, then it undergoes a series of reactions in the MTG reactors.  The effluent is combined, cooled and separated resulting in raw gasoline.  The raw gasoline is then treated to meet commercial specifications and the finished product is ready.