Science. 1972 Sep 29;177(4055):1187-8. doi: 10.1126/science.177.4055.1187.
Coal combustion is the largest single source of sulfur oxide pollution. Treatment of some major representative U.S. coals with aqueous ferric solution removes 40 to 75 percent of the sulfur content through near quantitative oxidation of the pyritic sulfur contained in the coal matrix. Elemental sulfur and iron sulfate are recovered as products of the reaction. Engineering assessment indicates that the system, when fully developed, offers high potential for the economic abatement of sulfur oxide pollution.
煤炭燃烧是硫氧化物污染的最大单一来源。用铁的水溶液处理某些主要的美国煤种，可以通过近乎定量地氧化煤基质中所含的黄铁矿硫，去除 40%至 75%的含硫量。单质硫和硫酸铁作为反应产物被回收。工程评估表明，该系统在充分开发后，具有很大的经济潜力，可以减少硫氧化物污染。
