Entry from British & World English dictionary
The solid non-volatile carbon residue left after the distillation and cracking of petroleum.
- Most graphite is obtained from petroleum coke, i.e., the black tar that remains after all of the useful fuels and lubricants have been removed from crude oil.
- UP to 2,000 jobs will be put at risk if the Government's proposal to ban bituminous coal and petroleum coke nationwide goes ahead, industry experts warned yesterday.
- The company wants to carry out an 18-month trial burning a blend of coal and petroleum coke - a by-product of the US oil industry which has a higher potentially carcinogenic heavy metal content.
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