| Show OIL SHALE TESTS OF BUREAU OF MINES assay retort tests of shale the regular testing b program with assay ret orits has been completed on utah shale at the field office of the bureau of mines boulder colo work has been started on the elko nevada shale tests made to determine the effect of refluxing the crude oil back into the retort during distillation resulted in the obtaining of a surprisingly singly large amount of motor fuel distillate at this office a method has been evolved for the determination of the amount of dust in shale oil analysis of oil shale results of elementary analysis of colorado utah and scottish oil have been tabulated at the boulder colo office of the bureau combustion analyses have been made on the separated from kentucky nevada and brazilian one important fact developed velo p ed is that the amount of nitrogen t in the oil and spent shale depends materially on the rate at which the oil is produced slow rates of retorting yield an oil containing a relatively rela small amount of nitrogen and a spent shale containing a relatively ivelA large amount of nitrogen investigation of stage education theory at the salt lake city experiment station a study has been made of the stage education theory in the distillation of oil shale it has been clair claimed ned that it is possible to produce by distillation from oil shale a series of crude oils which vary greatly in in specific gravity the light oils being produced first at the lower temperatures and heavy oils at the end of the distillation at the higher temperatures the results of the study show that the difference in the properties of the oil produced at adv stage of the distillation is so slight that the advantage of attempting to collect oils of 9 greatly differing Z gravities as the oils are produced from the retort is negligible ref ning of shale oil considerable time has bas been spent in the experimental refining of shale oil naphtha the work evidently confirms the finding that 70 per cent sulphuric acid is the most effective strength to use in refining the naphtha from this particular oil it was also found that ahat the scrubber naphtha recovered from the activated charcoal absorber is of ext extremely remely good quality although it is s siaw li b atly over 30 per cent saturated its color is only slightly off N water ater white and appears to be permanent an important fact brought out in refining 1 11 studies is that the gasoline obtained from tile crude oil is deficient in the more volatile fractions fraction S in 1 I order to make the gasoline meet present day specifications it would be necessary to blend with it some lower boiling material which can probably be obtained by scrubbing tile itlie re tort gases for this purpose charcoal seems illuce inac more satisfactory than ordinary oil sc rubbers but before this fact is definitely established some experimental work must be done |
