By Clarence Karr
Analytical tools for Coal and Coal items, quantity III, is the 3rd of a three-volume treatise that goals to supply an in depth presentation of what constitutes the 1st complete reference paintings committed solely to the topic of analytical method for coal and coal items. the 3 volumes were divided right into a overall of twelve components, every one half containing numerous chapters dedicated to a specific topic. the current quantity offers with gases, waste items, by-products, environmental difficulties, and miscellaneous analytical difficulties, in addition to precise instrumental thoughts for fixing numerous difficulties.
Because varied features of a specific topic are usually scattered via quite a few chapters within the volumes, cross-references among chapters were entered. additionally, the topic indexes were made as designated as was once functional, and the reader will take advantage of exam of pertinent matters within the indexes of all 3 volumes. A cautious examining of those volumes will express that definitive ideas aren't but to be had in a few situations. there's a transparent want for endured study at the basics of study of coal and coal items, and the improvement of trustworthy and exact analytical instrumentation, together with on-stream functions.
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Additional info for Analytical Methods for Coal and Coal Products. Volume III
Hamming, F. /. Radd, and A. B. Carel VACUUM - PRESSURE BELLOWS VALVES VESSEL LID O - R I N G SEAL Fig. 3 Exploded view of Bleuler grinding vessel. obtained by mass spectrometry and from the 50 g of coal (in all cases) that was charged to the grinding vessel. This same basic procedure was used to obtain gas samples in the air and oxygen studies, except the system was not evacuated. In the case of the oxygen atmosphere, the vessel was flushed with oxygen for 10 min prior to grinding. A similar procedure was followed for air.
TABLE V Methane in Evolved Gases Obtained by Bleuler Grinding Pittsburgh No. 0 From Radd et al. (1976). All results obtained from duplicate Bleuler ground samples. 3 — 48 M. C. Hamming, F. J. Radd, and A. B. Carel TABLE VI Total Composition of Bleuler Mill Gases (Excluding Gases Added before Grinding) and CH4 Converted to wt. % of Original Sample" Gases evolved by grinding under vacuum for 5 min (vol. 43 C H , , converted to w t . 32 038 042 Gases evolved by grindimg with oxygen for 5 min (vol%).
The high-resolution data on photoplates were reduced via the photodensitometer and the Supernova computer with final processing on the IBM 370/155 computer system. Peak intensities and line positions were processed by a modified version of a program by Tunnicliff and Wadsworth (1968). Accuracy and repeatability of mass measurements are shown in Table I. These precision data were obtained from a standard sample used for mass spectrometer calibration purposes. S. Bureau of Mines, Bartlesville, Oklahoma) is a 370°-535°C boiling range distillate of Gach Saran (Iranian) crude oil.
Analytical Methods for Coal and Coal Products. Volume III by Clarence Karr