. Bulletin . rate of evaporation ofa condensate with a specific gravity of 79° B. is fairly uniform. Acondensate with a specific gravity of 98° B. underwent a slower rateof evaporation than four condensates of lower specific gravity. Thisdifference was probably due in part to the fact that during the tests BLENDING GASOLINE WITH NAPHTHA. 87 of condensates of high specilic gravity the temperature of the atmos-phere was about 10° F. (6° C.) lower. In figure 12 are shown the evaporation losses that resulted when twonatural-gas condensates, with gravities of 98° and ° B., weremixed with naphth
. Bulletin . rate of evaporation ofa condensate with a specific gravity of 79° B. is fairly uniform. Acondensate with a specific gravity of 98° B. underwent a slower rateof evaporation than four condensates of lower specific gravity. Thisdifference was probably due in part to the fact that during the tests BLENDING GASOLINE WITH NAPHTHA. 87 of condensates of high specilic gravity the temperature of the atmos-phere was about 10° F. (6° C.) lower. In figure 12 are shown the evaporation losses that resulted when twonatural-gas condensates, with gravities of 98° and ° B., weremixed with naphtha in different proportions. The curves were pre-pared from Tables 10 and 11. Figure 13 shows the evaporation losses resulting when a condensatewith a specific gravity of 93° B. was exposed to the air and when itwas mixed with naphtha. The curves were prepared from Table 9. Figure 14 shows the evaporation losses when a condensate, with aspecific gravity of 95° B., was exposed to the air and when it was. ! 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 PERIOD EXPOSED, 12.—Evaporation losses when two natural-gas condensates were mixed with naphtha in different proportions. mixed with naphthas of different specific gravities and losses resulted when a naphtha with a specific gravity of60° B. was used than when a naphtha with a specific gravity of 44° used. VAPOR-PRESSURE TESTS. Figures 15,16,17, and 18show the results of tests made by theauthorsto determine the pressures exerted by the vapors of condensates andof blends. In making the tests a small steel container of about 2-liter capacity was fitted with a pressure gage. A hole was bored inthe bottom of the container for the introduction of the liquid. Thishole could be securely closed with a small threaded steel plug. Todetermine the pressure exerted at different temperatures, the con- 88 CONDENSATION OF GASOLINE FROM NATURAL GAS. tainer was placed in a water bath he
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