Publisher's Synopsis
Excerpt from A Study of Decomposition Processes Applicable to Certain Products of Coal Carbonization, Vol. 27: Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy in Chemistry in the Graduate School of the University of Illinois, 1921
In series 7 the furnace was copper lined and the con tact surface consisted of 35; kg. Of oxidized Illium turn ings, mechanically mixed among small pieces of pumice. These runs demonstrated that around 700 deg. C. The decomposition of xylene was greatest and giving the maximum quantity of the lower boiling fractions.
Series 8 was made over small pieces of pumice which had been dipped in nickel nitrate and then reduced at 500 deg. C. With hydrogen. This was to get the metal in a finely divided condition and over as much surface as possible. Several runs were made between 500 and 800 deg. C., run 104 being a sample. Nickel under these conditions did not promote the formation of liquid products, but rather favored complete decomposition of the hydrocarbons into hydrogen, methane and carbon. In fact, the deposited carbon soon filled the furnace so that the series had to be discontinued. At this time the copper lining was found to have become broken in sev eral places, leaving iron surfaces exposed, which no doubt had in?uenced the reactions.
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