heeheehee. Peanut oil as i recall.
Lot of times, neighbors on 1963 Massey-Ferguson combine or 1957 International Harvester tractor will pull up and say, can you fill me up ? Those guys don't even need biodiesel. They can decant straight veg oil outta the seed press into the engine. (They shut down and start up on straight diesel, tho). They figure, if they needed, they could run their whole operation on the oil from soy on one third of their land.
They be old and crazy tho. And their kids are all leavin for gay Paree.
sidd
>> From the late 60's people have used cooking oil and most biodiesel you can buy is from that commercially so it's not a sustainable process it's part of a food-crop supply-chain using petrol-ag to grow
Consider your local sewage treatment plant uses chemicals to clean the water enough to let it go into a waterway and algae photo-bioreactors can grow 24x7, insulated, aeration & power piped in to have biodiesel from algae at high-volume.
My research was in Phoenix, AZ, visiting the labs that developed the aviation biodiesel algae that flew commercially along with ASU's libraries & local treatment plant managers where volume was 10-million gal/day in effluent, about 1/2 by weight in dissolved solids, aka algae food, & is worth about 3-million gal/day in biodiesel.
This process will remove CO2 and emit oxygen BEFORE you burn it is the diff to fossil fuels, this will create a much slower migration process of excess greenhouse gases at the local level. Know that pre-WW2 algae biodiesel was researched by the War Department and 50%-oil species had been hybridized, about 50-years prior to GMOs so they are not needed for this.
Biodiesel is refined to not dissolve seals in engines, it'll run any engine, for the picky algae-to-crude is $7.50/gal so bio-gasoline is possible, the oil barons have to keep their refineries working, eh?
The oil barons have kept this industry away from the public with the gas-station game, biodiesel-from-algae growers are small operators so can't afford that except for a dozen large-scale bio-reactor style, most large-scale use raceway ponds so can't grow in high-latitudes.
My focus was purifying the water, algae do a better job than floccing chemicals cleaning water so make tertiary treatment cheaper than what N Lake Tahoe's plant has been doing since the late 70's, then add in a revenue stream from the biodiesel and the treatment plant becomes the biofuel supply for the town.