| abstract |
A process for converting coal and algae feeds to liquids including converting the coal to liquids by direct liquefaction, gasifying an algae or algae residue containing biomass feed to produce syngas, converting syngas to liquids, increasing the hydrogen content of the coal feed in the direct liquefaction by supplementing it with hydrogen in the syngas produced from the algae or algae residue, producing algae by photosynthesis using CO2 produced by the direct liquefaction and gasification steps, and supplying algae or algae residue produced by hydroprocessing the algae, as the algae or algae residue feed in the gasification step. |