By Clarence Karr
Analytical tools 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 finished reference paintings dedicated solely to the topic of analytical technique 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 particular instrumental thoughts for fixing a number of difficulties.
Because diversified features of a selected topic are usually scattered via numerous chapters within the volumes, cross-references among chapters were entered. moreover, the topic indexes were made as targeted as was once sensible, and the reader will reap the benefits of exam of pertinent topics within the indexes of all 3 volumes. A cautious analyzing of those volumes will convey that definitive strategies will not be but on hand in a couple of circumstances. there's a transparent want for persisted learn at the basics of research of coal and coal items, and the improvement of trustworthy and exact analytical instrumentation, together with on-stream functions.
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Additional resources for Analytical Methods for Coal and Coal Products. Volume III
IV. V. I. Introduction Experimental A. Grinding the Coal Samples with a Bleuler Mill and Collection of the Released Gases B. Thermogravimetric Analyzer Operations C. Mass Spectrometry Techniques Data Processing A. Interpretations of Bleuler Mill Data B. TGA Weight-Loss Thermograms C. Mass Spectral Data Discussion of Results A. Composition of Gases and Residue Volatiles from Bleuler Mill Grinding of Coal B. Data Obtained on the TGA Volatile and Residue Fractions C. Analysis of Raw Coal Samples Taken from Different Levels in the Mine D.
If the gas contains a high concentration of NH 3 , an auxiliary trap containing about 20 mliter of dilute HC1 38. Coke Oven Gas Analysis 23 is added to the system ahead of the Shaw flask. 1 ft3 of gas are passed through the apparatus at a rate not to exceed 2 ft3/hr. At the end of the sampling period, the HC1 solution in the NH 3 trap is made slightly alkaline to methyl orange and is added to the sulfide flask prior to evacuation. During the test, log the meter temperature and pressure. After disconnecting the apparatus, log the meter reading and the barometric pressure.
J. Radd, and A. B. Carel 39. 47 Characterization of Recovered Volatiles A. Composition of Gases and Residue Volatiles from Bleuler Mill Grinding of Coal 1. Composition of Gases First to be discussed are data on the gaseous samples obtained from grinding coal under three different atmospheres in the Bleuler mill, these being an evacuated system, air, and pure oxygen. Table V gives a summary on the methane data obtained on 22 separate samples. The percentages of methane found (excluding air, hydrogen, and oxygen) range from 68 to 80%.