Just make sure you ' re connected to the internet instead of local wireless and I ' ll request a trade . Ign ? <| sep |> she is able to break down plastic to produce methane , propane and ethane , which can be converted into the biofuel ethanol . If the ethanol comes from recycled plastic bottles , it ' s not a biofuel . technically speaking . There have been some other comments about the costs involved . I ' d suggest putting a 5 deposit on plastic bottle . That gives consumers an incentive to return them to a centralized collection point for a refund . Efficient collection of bottles means low costs involved with acquiring the raw material . As other have suggested , I ' d skip the conversion to ethanol and just use the methanepropaneethane as fuels .