By Clarence Karr
Analytical equipment for Coal and Coal items, quantity III, is the 3rd of a three-volume treatise that goals to supply a close presentation of what constitutes the 1st entire reference paintings dedicated completely to the topic of analytical technique for coal and coal items. the 3 volumes were divided right into a overall of twelve elements, every one half containing a number of chapters dedicated to a selected topic. the current quantity offers with gases, waste items, by-products, environmental difficulties, and miscellaneous analytical difficulties, in addition to certain instrumental ideas for fixing a number of difficulties.
Because varied elements of a specific topic are often scattered via numerous chapters within the volumes, cross-references among chapters were entered. furthermore, the topic indexes were made as special as used to be sensible, and the reader will take advantage of exam of pertinent matters within the indexes of all 3 volumes. A cautious interpreting of those volumes will express that definitive recommendations should not but to be had in a couple of circumstances. there's a transparent want for persevered study at the basics of research of coal and coal items, and the advance of trustworthy and exact analytical instrumentation, together with on-stream functions.
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Extra info for Analytical Methods for Coal and Coal Products. Volume III
Programmed heating rates of 1° and 5°C/min were used. The first fraction was collected from ambient to 100°C. After each fraction was collected for low-resolution mass spectrometry, the coal residue sample was removed for analysis by high-resolution mass spectrometry. The remaining fractions were collected in 50°C increments from ambient to 500°C. A fresh coal sample was then loaded into the TGA unit, and the next temperature increment of the coal volatiles was collected (volatiles evolving prior to the initial temperature of this increment were not collected); the residue was again removed; and the 39.
Manka 2. H 2S The original method developed by Shaw (1940) for analyzing H2S in coke oven gas was modified by the author and John L. Kieffer, Chief Chemist, Pittsburgh Coke Plant, Jones & Laughlin Steel Corporation. Considerable time and effort was put into the sampling and analytical techniques to make the method reliable and rapid. It has been tested repeatedly against various standard gases and Chromatographie results. For more than 3 yr it has been used to verify new cylinders of standard gases and to verify results obtained on the plant continuous analyzer.
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%). 31 036 034 036 040 Gases evolved by grindimg with oxygen for 2 min (vol%). 5 Gases evolved by grindimg with oxygen for 10 min ι(vol%). 40 Average of 22 040 . 038 a From Radd et al. (1976). Results from duplicate samples.
Analytical Methods for Coal and Coal Products. Volume III by Clarence Karr