| 摘要 |
PROBLEM TO BE SOLVED: To enhance low-temperature flowability of a biodiesel fuel containing a fatty acid methyl ester, and to suppress precipitation separated out during storage at a low temperature.SOLUTION: The biodiesel fuel composition includes a copolymer (X) represented by general formula (1), one or two or more carbonyl-containing compound other than general formula (1) [a (Y) component], and a biofuel [a (Z) component]; wherein R, R, and Reach independently represent 1-40C hydrocarbon optionally containing an oxygen atom, or a hydrogen atom; p1 is an integer of 1-50; q1 is an integer of 1-50; and r1 is an integer of 1-5,000. |
