Chinese scientists say they have devised a new technique for refining oil that cuts the amount of energy consumed during the process by roughly 90 per cent. If the technology used in the study could be scaled up for industry, it would not only greatly reduce production costs and emissions, but also make the process more precise and boost product value. Crude oil cannot be turned directly into petrol or plastics. Instead, refineries must separate it into different parts before each one can be put...

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