Engineering consultant will apply energy experience to engineering design for XFuel’s planned modular production facilities for sustainable drop-in fuel ahead of building programme Mallorca, Spain, 25 April 2023 – XFuel, sustainable drop-in fuels producer, today announces it has engaged DORIS, a leader in energy engineering, advisory and… The post XFuel engages DORIS for feed support on sustainable fuel production facilities appeared first on XFuel .