Year-Book Volume 8

Year-Book Volume 8

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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. 1908 edition. Excerpt: ...down, it would require, in all probability, to be subjected to the briquetting process. The gas given off is of high illuminating power while the liquid consists of oils without the presence of tar. Substances soluble in water, such as creosote, ammonia, etc., are present to a considerable extent. The availability and value of these by-products will be developed, it is hoped, in the further study of the problem. The Weathering of Coal. (by S. W. Pabb And N. D. Hamilton.) In cooperation with the Engineering Experiment Station of the University of Illinois there has been conducted during the year past a series of tests of the weathering of coals. The storing of coal is coming to be more and more a necessary practice in many industrial operations and the question of deterioration enters as a very vital factor in the case. That such deterioration occurs is conceded by everyone, but exact data as to its extent or information as to the conditions which retard or promote it are meagre. Storage plants with capacities ranging from 50,000 to 150,000 tons are becoming frequent. Each percent of deterioration in a storage heap of the smaller size represents a loss of the equivalent of 500 tons of coal. This is a serious proposition if true and the present series of experiments was devised for the purpose of developing, if possible, some of the facts connected with the matter. Richter, after extended experiments in 1868, formulated an explanation for the weathering of coal, which does not seem to be disproven by more recent experimenters, to the effect that the weathering of coal is due to the absorption of oxygen, a part of which goes to the oxidation of carbon and hydrogen in the coal, and part is taken into the composition of the coal itself. We certainly...show more

Product details

  • Paperback | 148 pages
  • 189 x 246 x 8mm | 277g
  • Rarebooksclub.com
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236583639
  • 9781236583635