Consider the following materials:1. Agricultural residues2. Corn grain3. Wastewater treatment sludge4. Wood mill wasteWhich of the above can be used as feedstock for producing Sus- tainable Aviation Fuel?
✓ Correct answer: c) 1, 2, 3 and 4
ExplanationSustainable aviation fuel (SAF), hydrogen and electric all have a role to play in the decarbonization of aviation.SAF is vitally important as it can address decarbonization of fuel over its lifecycle, and this is now available to be used in all turbine engines including in mid and long-range aircraft.Therefore, un- derstanding the feedstock landscape as well as the technology pathways is integral to maximising the production and supply of SAF.The production of SAF starts with one of five main families of raw materials:Corn grainOil seedsAlgaeOther fats, oils, and greasesAgricultural residuesForestry residuesWood mill wasteMunicipal solid waste streamsWet wastes (manures, wastewater treatment sludge)Dedicated energy crops.SUPER HINT You can try, The "NOT" approach for all statements, this tests the improbability of negating a statement—if de- nying its impact seems highly unlikely, the statement is plausibly true.For Example: Agri reside or mill waste or sludge are NOT used in fuel manufacturing? unlikely.236
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