In a first, a major airline will cross the Atlantic without fossil fuels

[ProfessorGAC]

19. To Be Clear

Substantial amounts of methanol are not made from wood today.
But, it's 200 year old technology & would be very easy to being to massive scale.
Capital would be significant, but still not close to refinery costs. So, the option is out there, though the overall cycle time is far greater than straightforward electrochemical oxidation of methane. But, once the pipeline is filled that's transparent.
Yes, a fat or oil is a fat or oil. The structure is exactly the same. The differences are the length of the carbon chains and the amount of double bonds. By convention, fats are animal sourced, oils from plants. But, the basic structure is identical.
I guess I can understand the methanol supplier concerns, but I'd think most meth labs use acetone. It's what I'd use if I wanted to play Walter White.
What did you do to reduce total glycerin in the biodiesel you made? That's typically the most rigorous part of the process. For B-100 markets, the free & total glycerin specifications are very tight.