Method of treating coal to reduce sulphur and chlorine emissions

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1996-04-09
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Chriswell, Colin
O'Donnell, Josh
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Iowa State University Research Foundation, Inc.
The Iowa State University Research Foundation (ISURF) seeks to protect the intellectual property (including new discoveries, technologies, or creative works) of the university's students & faculty which is continuously created through research and other undertakings. It seeks to manage, protect, and own all intellectual property on behalf of the university. The Iowa State University Research Foundation was created in 1938.
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Abstract

Methods and compositions are provided for treating coal to reduce the emissions of sulphur dioxide and hydrogen chloride gases upon combustion. In the subject method, coal is washed with a calcium anion wash solution, such as calcium hydroxide solution, and then separated from the wash solution. The treated coal exhibits reduced emissions of both sulphur dioxide and hydrogen chloride gas on combustion as compared with untreated coal.

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