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Coal desulfurization processA method for chlorinolysis of coal is an organic solvent at a moderate temperautre and atmospheric pressure has been proven to be effective in removing sulfur, particularly the organic sulfur, from coal. Chlorine gas is bubbled through a slurry of moist coal in chlorinated solvent. The chlorinated coal is separated, hydrolyzed and the dechlorinated. Preliminary results of treating a high sulfutr (4.77%S) bituminous coal show that up to 70% organic sulfur, 90% hyritic sulfur and 76% total sulfur can be removed. The treated coal is dechlorinated by heating at 500 C. The presence of moisture helps to remove organic sulfur.
Document ID
19780023584
Acquisition Source
Legacy CDMS
Document Type
Other - Patent
Authors
Hsu, G. C. (JPL)
Gavalas, G. R. (JPL)
Ganguli, P. S. (JPL)
Kalfayan, S. H. (JPL)
Date Acquired
September 3, 2013
Publication Date
March 28, 1978
Subject Category
Energy Production And Conversion
Report/Patent Number
Patent Number: NASA-CASE-NPO-13937-1
Patent Number: US-PATENT-4,081,250
Patent Application Number: US-PATENT-APPL-SN-718137
Accession Number
78N31527
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
NASA-CASE-NPO-13937-1|US-PATENT-4,081,250
Patent Application
US-PATENT-APPL-SN-718137

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