Abstract: A method for converting an ultra low sulfur diesel fuel to a kerosene product includes receiving an ultra low sulfur diesel fuel within a reaction vessel, delivering a gas through one or more spargers positioned within a reaction vessel into the ultra low sulfur diesel fuel so as to form aerosol droplets, passing the aerosol droplets through one or more catalyst grids positioned within the reaction vessel at a level above the ultra low sulfur diesel fuel at a speed between 0.01 m/s and 0.7 m/s, collecting a product gas resulting from the passing of the aerosol droplets through the catalyst grids, and condensing the product gas to form a kerosene product.