化工原理902

83n9-229-239-239-70fDnnFxDxxLyV−=−+1VFxDxxVLyfDnn−+=+19-73FqDRVqFRDL)11−−+=+=FqDRFxDxxFqDRqFRDyfDnn)1()1()1()1(1−−+−+−−++=+9-74,)(wwfDxDFWxFxDx−−=−=−wnnxFqDRDFxFqDRqFRDy)1()1()1()1(1−−+−−−−++=+9-75yn+1xn9-24y~xy=xDx=xDaL/VR/(R+1xD/(R+1)y=xwx=xwcVL/9-72(9-74(yqxq)qRqxRxyDfq++=9-7684qRxqxRxDfq+−++=)1()1(9-779-4-3ynxnynxny~x9-25By~x9-24AACC9-25ABCABCACBABBC9-5-1fDFxDx=η9-789-4-1DxDWxwRq9-26y1=xD85x1y1y1x1y2x1x1y29-26y~xy~x9-26ay1=xDxDy1x1a1y1x1x1x1y21gy2x1xNxw9-265x5y659-27(a)y6baca4x4y5456xxq5489-19-14581210128639-27(b)x3y439-27pm9-28a(xDxD)1+RxDc(xwxw)VLR,(q)d(yqxq)cdd9-769-779-28xD11−−−=qxxqqyfqq9-79dqy~xqfy=xf,x=xf1−qqf1−qqqddc9-525mol%98mol%8.5mol%5872.47nnnxxy)1(1−+=ααnnnnnyyyyx47.147.2)1(−=−−=ααA1598.0155111+++=+++=+nDnnxRxxRRy1633.08333.01+=+nnxyB)1()1()1(1=+−−++=+qxDRDFxDRFRDywDnwDxRDFxRDFR11/1/+−−++=42.5085.025.0085.098.0=−−=−−=wfwDxxxxDF0626.0737.11−=+nnxyCq=1xq=xf=0.2598.01==DxyA9520.098.047.147.298.047.147.2111=×−=−=yyxB9567.01633.0952.08333.01633.08333.012=+×=+=xy8994.09567.047.147.29567.02=×−=x9128.01633.08994.08333.03=+×=y8091.09128.047.147.29128.03=×−=x88y4=0.8376x4=0.6762y5=0.7268x5=0.5186y6=0.5955x6=0.3734y7=0.4745x7=0.2677y8=0.3864x8=0.20320.25x8xq9C2903.00626.02032.0737.10626.0737.189=−×=−=xy91421.02903.047.147.22903.09=×−=x1842.00626.01421.0737.110=−×=ywxx=×−=08376.01842.047.147.21842.01010879-69-49-29-2xmol%ymol%t0.05.010.020.030.040.050.060.070.080.089.495.0100.00.031.043.052.557.561.465.769.875.582.089.494.2100.0100.090.686.483.281.780.779.979.178.778.478.1578.378.39-4xf=0.40,xD=0.78,xw=0.02R=3q=1.1039-29axD=0.78195.01378.01=+=+RxD,babfxf=0.4074.101103.1103.11=−=−qqqqdxw=0.02c9-299-6cda75899-5-2L/VLV/y~xy~x9-30xDxw9-30a9-30(b)DBABAxxyy=19-131BAyy1BAxxDBABABAxxyyxx==111111αα1DBABABAxxxxyy==1121α90DBABABAxxyyxx==2122211αααNDBANNBAxxxx=ααα...1219-80wBAxxNNminNNαααα...21=αloglogmin=wBADBAxxxxN9-81(Fenske)ααα⋅=9-829-81xB=1-xAαlog11logmin−−=WWDDxxxxN9-83(Nmin)Rmin(xDxw)e9-31ee(yexe)aeeDeDxxyxRR−−=+1minmin9-849-3191Rmin9-329-32(a)eeRmin(9-849-32(b)ed(yqxq)(yexe)9-84Rmineexn+1xn9-329-339-339-349-34RoptRopt=(1.2~2)Rmin92RminNmin(Gilliland)9-3517.01min+−RRR17.019.01lgminmin−+−−=+−RRRNNN9-85NNmin9-79-5Nxf=0.25xD=0.98xw=0.085R=5q=1=2.47q=1xe=xf452.025.047.1125.047.2)1(1=×+×=−+=fexxyαα1minmin+=−−RRxxyxeDeD62.225.0452.0452.098.0min=−−=−−=eeeDxyyxR793.647.2log085.0085.0198.0198.0loglog11logmin≈=−×−=−−=αWWDDxxxxNR=5310.01min=+−NNNN=10.6119-5109-35397.01562.251min=+−=+−RRR939-5-3qqqRq9-36qq9-39-3qq1.21.00.507.88.08.812qqR9-36q9-5-4V9-37(a)WVSL+=+94nwnxLWxyV=++1wnnxVWxVLy−=+1WLSV==,wnnxSWxSWy−=+19-86y~xx=xwy=09-37(b)9-37xfxDxwxwSD9-38(a)q9-38(b)959-389-39(a)xD’9-39(b)yD’9-39(c)q9-399-40axfxwxDD/FwnnxVWxVLy−=+1,FL=DV=wnnxDWxDFy−=[phone](b)a(x=xfy=xD)b(x=xwy=xw)F/DF/Dexfqqy=xD9-40(c)9-409-5-5y=Kx(9-88)K)(1NNxVLyxVLy−+=+VLa=NNxVLyb−=+1baxy+=9-89x0~xN9-41y1=ax0+bKbxKaKyx+==011y2=ax1+bKbKbKaxKax+⋅+=0229-41