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12 TOP SECRET based on total cracking stocks, is 22 percent, A volume of 21 percent was therefore making a total percentage yield of gasoline adopted and this was converted to weight, from cracking based on both heavy and light taking into consideration the relative gravi- cracking stocks of 56.2 percent. ties of the gasoline and crude oil which The over-all time cycle cracking efficiency showed 18.5 straight run gasoline by weight. for US practice is 90 percent maximum al- Therefore, the total gasoline by weight is 14.5 lowing for shutdown time, clean-outs, re- percent cracked gasoline plus 18.5 percent pairs, and equipment replacement. Assum- straight run gasoline, or 33 percent. This ing 80 percent maximum time-cycle cracking converted to a volume basis, shows 38 per- efficiency for USSR practice, the over-all cent, made up of 21 percent straight run average yield of gasoline from the average gasoline and 17 percent cracked gasoline. cracking stock, corrected for time cycle ef- The percentage of potential kerosene by ficiency, is thus 45 percent by volume. volume may be determined like the straight The percentage yield of cracked gasoline run gasoline, i.e., from the analysis of the by weight was determined by taking into ac- crude oil. count the relative gravities of gasoline and The percentage of lubricating oil shown is the charging stock, thus converting volume based on the requirement; it has been pre- percentage of 45 to weight percentage of 36.4. viously determined that this was well within The latter figure multiplied by 13 million the amount present, as determined by analy- metric tons cracking capacity gives directly sis of the crude oil. The percentage of diesel the weight in million metric tons of cracked oil and residual fuel oil was found by sub- gasoline, namely, 4.75, which taken against tracting the other liquid products produced the weight of the crude oil (32.8 million met- from total refined products. The quantities ric tons) is 14.5 percent of cracked gasoline obtained are based on the maximum of each or 19.0 percent by volume. of these products which can be produced from the remaining crude oil of minimum ac- (4) Estimation of Potential Straight Run ceptable quality. Thus, the potential quan- Gasoline in Crude Oil. tity of gasoline which can be made, especially The average percentage of straight run that obtained by cracking, must be balanced gasoline was determined from analyses of ap- not only against the crude oil or more directly proximately 50 samples of crude oil at var- the cracking stocks available, but also the ious depths taken from the principal fields permissible qualities of the diesel oil and/or of the USSR. The weighted average per- the residual fuel oil. centage of gasoline was calculated from these analyses with the following results: d. Aviation Fuels. TABLE IV (1) Aviation Gasoline. STRAIGHT RUN GASOLINE IN CRUDE OIL Because adequate equipment, such as cat- alytic cracking plants, alkylation and poly- merization units, is decidedly lacking, pro- duction of this critical commodity, which is 2 so necessary in an air age, lags far behind Areas requirements. From available information, it appears that the USSR can produce only 35-50 percent of its high-octane combat avia- tion gasoline requirements for minimum air force operations. However, ample jet fuel Caucasus 63% 22 13.85 production facilities are available along with Volga-Ural 22% 27 5.95 sufficient crude oil supplies to satisfy require- Remaining Areas 15% 12.5 1.87 ments for air force operations, providing there are available sufficient and satisfactory jet- 100% 21.67 propelled aircraft. TOP SEGRET

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    "ocrText": "12\nTOP SECRET\nbased on total cracking stocks, is 22 percent,\nA volume of 21 percent was therefore\nmaking a total percentage yield of gasoline\nadopted and this was converted to weight,\nfrom cracking based on both heavy and light\ntaking into consideration the relative gravi-\ncracking stocks of 56.2 percent.\nties of the gasoline and crude oil which\nThe over-all time cycle cracking efficiency\nshowed 18.5 straight run gasoline by weight.\nfor US practice is 90 percent maximum al-\nTherefore, the total gasoline by weight is 14.5\nlowing for shutdown time, clean-outs, re-\npercent cracked gasoline plus 18.5 percent\npairs, and equipment replacement. Assum-\nstraight run gasoline, or 33 percent. This\ning 80 percent maximum time-cycle cracking\nconverted to a volume basis, shows 38 per-\nefficiency for USSR practice, the over-all\ncent, made up of 21 percent straight run\naverage yield of gasoline from the average\ngasoline and 17 percent cracked gasoline.\ncracking stock, corrected for time cycle ef-\nThe percentage of potential kerosene by\nficiency, is thus 45 percent by volume.\nvolume may be determined like the straight\nThe percentage yield of cracked gasoline\nrun gasoline, i.e., from the analysis of the\nby weight was determined by taking into ac-\ncrude oil.\ncount the relative gravities of gasoline and\nThe percentage of lubricating oil shown is\nthe charging stock, thus converting volume\nbased on the requirement; it has been pre-\npercentage of 45 to weight percentage of 36.4.\nviously determined that this was well within\nThe latter figure multiplied by 13 million\nthe amount present, as determined by analy-\nmetric tons cracking capacity gives directly\nsis of the crude oil. The percentage of diesel\nthe weight in million metric tons of cracked\noil and residual fuel oil was found by sub-\ngasoline, namely, 4.75, which taken against\ntracting the other liquid products produced\nthe weight of the crude oil (32.8 million met-\nfrom total refined products. The quantities\nric tons) is 14.5 percent of cracked gasoline\nobtained are based on the maximum of each\nor 19.0 percent by volume.\nof these products which can be produced\nfrom the remaining crude oil of minimum ac-\n(4) Estimation of Potential Straight Run\nceptable quality. Thus, the potential quan-\nGasoline in Crude Oil.\ntity of gasoline which can be made, especially\nThe average percentage of straight run\nthat obtained by cracking, must be balanced\ngasoline was determined from analyses of ap-\nnot only against the crude oil or more directly\nproximately 50 samples of crude oil at var-\nthe cracking stocks available, but also the\nious depths taken from the principal fields\npermissible qualities of the diesel oil and/or\nof the USSR. The weighted average per-\nthe residual fuel oil.\ncentage of gasoline was calculated from these\nanalyses with the following results:\nd. Aviation Fuels.\nTABLE IV\n(1) Aviation Gasoline.\nSTRAIGHT RUN GASOLINE IN CRUDE OIL\nBecause adequate equipment, such as cat-\nalytic cracking plants, alkylation and poly-\nmerization units, is decidedly lacking, pro-\nduction of this critical commodity, which is\n2\nso necessary in an air age, lags far behind\nAreas\nrequirements. From available information,\nit appears that the USSR can produce only\n35-50 percent of its high-octane combat avia-\ntion gasoline requirements for minimum\nair force operations. However, ample jet fuel\nCaucasus\n63%\n22\n13.85\nproduction facilities are available along with\nVolga-Ural\n22%\n27\n5.95\nsufficient crude oil supplies to satisfy require-\nRemaining Areas\n15%\n12.5\n1.87\nments for air force operations, providing there\nare available sufficient and satisfactory jet-\n100%\n21.67\npropelled aircraft.\nTOP SEGRET"
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