Heavy Fuel Oils are blends of residual fuels and distillate streams which always require heating before use.

Streams obtained from distillation and cracking processes and containing a mixture of saturated, aromaticand olefinic hydrocarbons with carbon numbers predominantly in the C9 to C50 range. Contains crackedcomponents in which polycyclic aromatic compounds, mainly 3-ring but some 4 to 6 ring species, are present.Contains sulphur, oxygen, nitrogen compounds, vanadium and other metals at >10 ppm w/w. Hydrogensulphide may be present both in the liquid and the vapour. Composition is complex and varies with the sourceof the crude oil. 

Heavy Fuel Oils are blends of residual fuels and distillate streams which always require heating before use.See Section 16 'Other Information' for full text of each relevant Risk Phrase.

Heavy Fuel Oil Tanks