New research explores less energy intensive method of sulfur extraction so the oil industry can meet lower emissions requirements. Researchers in Iran have identified a fungus that can remove sulfur from heavy crude oil in conditions slightly higher than room temperature. The WS4 strain of the Stachybotrys fungus, which is found in “sick buildings” where water damage has caused mold growth, can selectively remove sulfur and nitrogen from heavy crude oil at 30 degrees Celsius (86 degrees Fahrenheit). The work could lead to a simpler and cheaper method the oil industry could use to remove sulfur from crude oil to meet emissions standards that continue to drop worldwide. The work was done by scientists at the Sharif University of Tehran as part of a project overseen by the Petroleum Engineering Development Company, a subsidiary...
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