Diesel fuel composition
A diesel fuel substitute composition includes an alcohol, an acetal, and an additive comprising a component selected from the group consisting of C 3-8 dialkyl ethers, alkylated phenols, R—NO 2 , and combinations thereof. A method for forming the diesel fuel substitute is also provided.
1. A composition comprising:
an alcohol having formula (1):
HOCR 1 R 2 R 3 (1)
where:
R 1 R 2 R 3 are each independently H or a C 1-4 alkyl;
an acetal having formula (2) or formula (3):
where:
R 4 , R 5 are each independently hydrogen or C 1-3 alkyl;
R 6 , R 7 are each independently hydrogen, methyl, or ethyl;
R 8 is a C 1-4 alkyl or another acetal linkage formed from a C 2-5 polyol;
R 9 , R 10 , R 11 are each independently C 1-4 alkyl;
n is 0, 1 or 2;
with the proviso that the total number of carbon atoms in R 4 plus R 5 is from 0 to 3 and that the total of n plus the number of carbon atom in R 6 plus R 7 is from 0 to 2; and
an additive comprising a component selected from the group consisting of C 3-8 dialkyl ethers, alkylated phenols, R—NO 2 , and combinations thereof where R is a aliphatic hydrocarbon with oxygenate functionality in an alpha or beta position to NO 2 .
2. The composition of claim 1 wherein the additive is an ignition enhancer.
3. The composition of claim 1 wherein the additive is a peroxide inhibitor.
4. The composition of claim 1 wherein:
the alcohol having formula (1) is present in an amount from 0.01 to 90 mole percent:
the acetal is present in an amount from 10 to 90 mole percent; and
the additive is present in an amount from 0.01 to 10 mole percent.
5. The composition of claim 1 wherein the acetal is formed by reacting a polyol with the component selected from the group consisting of C 1-4 aldehydes, C 3-4 ketones, and C 2-5 dialdehydes.
6. The composition of claim 1 further comprising methanol.
7. The composition of claim 1 wherein the oxygenate functionality is OH or O═ (carbonyl) or OR (ether).