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This quantity describes new equipment with designated emphasis on class and cluster research. those tools are utilized to difficulties in details retrieval, phylogeny, scientific prognosis, microarrays, and different energetic study components.
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Ox. a CnH2n-i4 C n H 2 „_i 2 Temperature range of fraction, °C Concentration comparison of polyaromatic compound types Mass Spectrometric Examination of TGA (5°CIMin) Roof Coal Fractions Fraction number TABLE XIII 56 M. C. Hamming, F. J. Καάά, and A. B. Carel 150-200 200-250 250-300 300-350 350-400 400-450 450-500 2 3 4 5 6 7 8 f b Most abundant species. Carbon range. Carbon range is less than three carbons. 100-150 1 a Temperature range of fraction, °C Cw Cw-Cw C,4 Cw-C, 6 c, 5 Cw C 12 -C M C,3 Cw-C 19 c, 5 Cw ClO"C 16 C,3 Cw C10-C23 Cw C10-C27 W C w " C 23 C Cw-C 27 C,6 c 16 Cw-c 25 c,e-c 17 C10-C24 ^23 C18 Cw-C 24 Cw Cw-C 27 ^12 Cw C -C Cw-C 22 c 16 -c 17 C,6 C w - C 24 C,3"C 14 C , 0- C 22 Cw-C, 9 Cw-C 19 C,o-C19 b C -C *-Ί0 ^13 C,o-C14 C„H 2 „_, 6 Small a C„H2„_14 Small c c C„H 2 „_, 2 C,8 C,4-C 24 C W C 1 4-C 28 C,4-C 23 C,6-Cw C,5 C , 4 - C 22 C,4-C,8 C,4 C,4 C,4-Cu Small - C„H 2n _, 8 C i f .
5 52 M. C. Hamming, F. /. Radd, and A. B. 05 \ Si? 14 — For 5 min grinding time. These volatiles are the same as those which would be released from the inner surfaces of the coal upon increased heating. Among these components are those which eventually would find their way into the atmosphere and surface waters. The coal industry has long known that stored coals oxidize and slowly change (decrease) in BTU values, but the specific chemistry of such coal surface-produced natural changes has not been analytically defined heretofore.
6. Schematic for analysis of low concentration of sulfur compounds. backflush valve are switched to permit one source of nitrogen to backflush the tar, oils, and water to atmosphere and a second source to separate the sulfur compounds on the ί x 11 in. Teflon column filled with a special silica gel. The separated COS, CS 2 , and H 2 S flow to the FPD. The columns and valves are maintained at 63°C, and nitrogen is the carrier gas at a flow rate of 16 cm 3 /min. These sulfur compounds, except H 2 S, can also be analyzed in the sour gas.