Petroleum coke or pet coke, is a solid carbon rich(90% carbon and 3% to 6% sulfur) material derivedfrom oil refining. It is categorized as a “bottom of the barrel” fuel.It is a dirtier alternative to coal and emits 11% moregreenhouse gases than coal and nearly 17 timesmore sulphur than coal.
Petcoke is a source of fine dust which can getlodged in the lungs. It may contain vanadium
which is a toxic metal.Sulphur-heavy petcoke and other polluting
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