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超重质油如原油贮罐沉渣、高粘度沥青和重质油砂油都呈半固态,典型的含硫在4％以上。要将这类油转化为有用的燃料,由于其粘度高和含硫,迄今仍感困难。 日本中部电力公司与环境技术转让国际中心合作,并得到日本政府的资助,开发了从这种物料生产低硫(硫质量分数小于1.2％)、低粘度重油技术。据称,使用所谓SCW技术从原油贮罐沉渣(现作为废物处理)生产低硫重油所需费用为处理废物的一半。
Heavy oil such as crude oil tank sediment, high viscosity asphalt and heavy oil sand oil are semi-solid, the typical sulfur content of more than 4%. To convert this type of oil into a useful fuel, it has so far been difficult because of its high viscosity and sulfur content. Japan Central Electric Power Corporation in cooperation with the International Center for Environmental Technology Transfer, with funding from the Japanese government, has developed a technology for producing low sulfur (less than 1.2% by mass fraction of sulfur) and low viscosity heavy oil from this material. Allegedly, the cost of using so-called SCW technology to produce low-sulfur heavy oil from sediment from crude oil tanks, which is now treated as waste, is half the cost of treating the waste.