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What remains as waste from large oil refineries is "black gold" for Nils Hansen. He can extract 800 different chemicals from the black sticky goo that remains after oil is refined. Oil is too valuable to waste, he says, so he is investing 150 million euros in a so-called "green refinery" in Hamburg.
What remains as waste from large oil refineries is "black gold" for Nils Hansen. He can extract 800 different chemicals from the black sticky goo that remains after oil is refined. Oil is too valuable to waste, he says, so he is investing 150 million euros in a so-called "green refinery" in Hamburg.
