aah i see.
well to be honest it is pretty carelss to just put standard amounts of sulphuric acid and methoxide into the reactor.

a better method would be to use the acid base method but to include a titration also. because realistically all of the ffa can be converted into biodiesel. turning it inot soap would be just a waste.

well anyway back on topic,
what method do you recommend i use?

single stage or 2 stage base-base method,

or is there any other method?
thanks and regards,
Mubs