abstract |
An additive for reducing smoke and particulate emissions during combustion of a fuel oil, especially diesel fuel, comprises a novel composition of (a) a compound of an alkali metal (b) a compound of a metal of group 2a of the Periodic Table and (c) a compound of a transition metal selected from groups 1b, 3b, 4b, 5b, 6b, 7b and 8 of the Periodic Table. |