abstract |
The invention provides a diesel oil composition and a method for improving the oxidation stability of biodiesel. The diesel oil composition contains base diesel oil and additives. It is characterized in that the base diesel oil contains biodiesel, and the additives contain amidine compounds. The amidine-type compound is a compound shown in the following structural formula (1) and/or an amidine-type compound with two ring structures. In the structural formula (1), R 1 , R 2 , R 3 and R 4 are each H or A hydrocarbon group with 1-30 carbon atoms, and at least one of R 1 , R 2 , R 3 and R 4 is a hydrocarbon group with 1-30 carbon atoms. The diesel composition provided by the invention has better oxidation stability. |