Wikipedia
NEXBTL
Neste Renewable Diesel, formerly known as NEXBTL, is a renewable diesel fuel production process commercialized by the Finnish oil and refining company Neste. Whether as an admixture or in its pure form, Neste Renewable Diesel is able to supplement or partially replace diesel fuel without problems. Unblended Neste Renewable Diesel meets the requirements set by the European pre-standard CEN TS 15940. Fuel blends meet the European diesel fuel standard EN 590.
Despite the former name BTL, the feedstock is vegetable oil and waste animal fats, not whole plants. However, fuel quality is equal to the synthetic Fischer-Tropsch BTL and GTL diesel fuels.