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<br />Shale rock <br /> <br />Gas burner bars <br /> <br /> <br />-. <br /> <br />.~t, <br /> <br />.. <br /> <br />The Paraho Participants <br />Arthur G. McKee Co. <br />Atlantic Richfield Co. <br />Carter Oil Co. <br />Cleveland-Cliffs Iron Co. <br />Gulf Mineral Resources <br />Kerr-McGee Corp. <br />Marathon Oil Co. <br />Mobil Oil Co. <br />PhIllips Petroleum Co. <br />Shell Oil Co. <br />Sohio Petroleum Co, <br />Southern California Edison Co. <br />Standard Oil Co, of California <br />Standard Oil Co. of Indiana <br />Sun Oil Co. <br />Texaco Inc. <br />Webb-Chambers-Gary-McLoraine Group <br /> <br />Shale vapors <br />to oil <br />recovery unit <br /> <br />Shale vapor <br />collecting <br />tubes <br /> <br />,~ <br /> <br />Gas/air <br />mixture <br /> <br />~ <br /> <br />Gas/air <br />mixture <br /> <br />Moving <br />grates <br /> <br />Gas/air <br />mixture <br /> <br />Spent shale <br />falls through <br />grates <br /> <br />Already in successful use on limestone, <br />the Paraho retorr will soon be tested on <br />all shale. Lumps of shale-3 Inches and <br />smaller /n Slze---enter as feed at the top of <br />the k/ln and descend against hot rising <br />gases The re/orted shale leaves through <br />a grate in the bottom of the kiln, in es- <br />sent/ally the same size as when it en- <br />tered. <br /> <br />12 l\!CUTIV[ \\bl 8('01\\-\10:" (OlllO, F..t>ru." 1'l-~ <br /> <br />Spent shale to <br />disposal beds <br />