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A Study of the Forms in Which Sulphur Occurs in Coal Volume 111-113

A Study of the Forms in Which Sulphur Occurs in Coal Volume 111-113


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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1919 Excerpt: ...hydrochloric acid. In coal No. 10, however, the difference is somewhat greater than that of the sulphate sulphur. A reasonable explanation for this difference would be that coal No. 10 contained calcite, which on heating changes to calcium oxide and on uniting with some of the hydrogen sulphide would ordinarihy volatilize. In the coal previously extracted with acid, however, the calcite was removed; consequently the residual sulphur was less than that in the coal extracted with acid. Cursory study of the table will show the falsity of the theory that all the organic and one-half the inorganic sulphur are volatilized during coking. In order to determine in some degree the proportion of the various sulphur forms left in the coke, the following calculations were performed. Coals Nos. 6a, 7a, and lOa were chosen since these contained less of the sulphate form to complicate the calculations and since they would be free of calcite which might enter into a secondary reaction with some of the volatile sulphur as previously explained. There would then be three unknown quantities of residual sulphur to add to the total residual sulphur which was known. Then Let X = fraction of pyritic sulphur left in coke Y = fraction of resinic sulphur left in coke Z = fraction of humus sulphur left in coke For coal No. lOa, .IX plus.13Y plus.72 =.38 For coal No. 6a, 2.06X plus.77Y plus 1.17Z = 1.46 For coal No. 7a, 1.30X plus.5Y plus 1.20Z = 1.09 Solving these equations simultaneously, the results are as follows: Pyritic sulphur left in coke, 16 per cent Resinic sulphur left in coke, 95 per cent Humus sulphur left in coke, 34 per cent These figures doubtless would not hold for every coal since other factors enter into the retention of the sulphur in the coke. They are interesting, h..


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Product Details
  • ISBN-13: 9781130808025
  • Publisher: Rarebooksclub.com
  • Publisher Imprint: Rarebooksclub.com
  • Height: 246 mm
  • No of Pages: 26
  • Spine Width: 1 mm
  • Width: 189 mm
  • ISBN-10: 1130808025
  • Publisher Date: 01 Mar 2012
  • Binding: Paperback
  • Language: English
  • Returnable: N
  • Weight: 68 gr

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