Consider the following materials:Agricultural residuesCorn grainWastewater treatment sludgeWood mill

Question

Consider the following materials:Agricultural residuesCorn grainWastewater treatment sludgeWood mill wasteWhich of the above can be used as feedstock for producing Sustainable Aviation Fuel?

Accepted Answer

Sustainable Aviation Fuel (SAF) is a liquid fuel currently used in commercial aviation which reduces CO2 emissions by up to 80%. It can be produced from a number of sources (feedstock) including waste oil and fats, green and municipal waste, and non-food crops. An estimated 1 billion dry tons of biomass can be collected sustainably each year in the United States, enough to produce 50–60 billion gallons of low-carbon biofuels. These resources include:Corn grainOil seedsAlgaeOther fats, oils, and greasesAgricultural residuesForestry residuesWood mill wasteMunicipal solid waste streamsWet wastes (manures, wastewater treatment sludge)Dedicated energy crops