The Renewable Diesel Subcommittee in the United States defines
renewable diesel as ‘‘any of several diesel fuel substitutes,
produced from renewable feedstocks, that chemically are not esters
and thus are distinct from biodiesel’’ [19]. Based on this definition,
there are a number of different chemical processes that
can be used to create a product that meets the criteria for renewable
diesel. Each process uses reactions between the triglycerides
in vegetable oil and hydrogen to form a primary product of n-alkanes
and a smaller proportion of i-alkanes, aromatics and