化工原理805

268-5-18-20Aa(m2/m3)G(kmol/sm2L(kmol/sm2(510)()1GLG(kmol/sm2)L(kmol/sm2)8-2023kxky8-20Aa(m2/m3)G(kmols-1m-2)L(kmols-1m-2)dhaAdhNANAaAdhdhGdy=NAadh(8-61)Ldx=NAadh(8-62)Gdy=Ldx(8-63)8.4NA(8-51)(8-54)NA=Ky(y–ye)(8-51)NA=Kx(xe–x)(8-54)(8-51)(8-54)(8-61)(8-62)27Gdy=Kya(y–ye)dh(8-64)Ldx=Kxa(xe–x)dh(8-65)(8-63)G(y1-y2)=(x1-x2)8-66GLkykx(8-52)(8-55)KyKx(8-64)(8-65)∫−=12yyeyyydyaKGH(8-67)∫−=12xxexxxdxaKLH(8-68)∫−=12yyeOGyydyN(8-69)aKGHyOG=(8-70)(8-67)OGOGNHH⋅=(8-71)NOG(y–ye)HOGm(8-68)OLOLNHH⋅=(8-72)∫−=12xxeOLxxdxN(8-73aKLHxOL=(8-74)(xe-x)HOGNOGHOLNOLNOGNOL()NOGNOLNOGNOLNOGNOLHOGHOLHOGHOL28Kya(KXa)G(L)G/Kya(L/Kxa)0.151.5mNA(8-61)(8-62)8-58-5H=HOGNOGH=HOLNOLH=HgNgH=HLNLaKGHyOG=aKLHxOL=akGHyg=akLHxL=∫−=12yyeOGyydyN∫−=12xxeOLxxdxN∫−=12yyigyydyN∫−=12xxiLxxdxNLgOGHLmGHH+=LgOLHHmGLH+=OLOGHmGLH=⋅8-5-2(8-67)(8-68)(y–ye)(xe–x)yxyx(8-21)Gy+Lx2=Gy2+Lx22)(yxxGLy+−=(8-75)yx8-21(b)AB(y1x1)(y2x2)GLMM(y–ye)(xe–x)y=(y–ye)x=(xe–x)yxyxyxyx298-2121212121)()()(yyyyyyyyyydyydee−∆−∆=−−−−=∆(8-76)21212121)()()(xxxxxxxxxxdxxdee−∆−∆=−−−−=∆(8-77)(8-67)(8-68)(8-76)(8-67)myyyyyyyyaKGyyyyyyaKGyydyyyyaKGH∆−⋅=∆∆∆−∆−=∆∆∆−∆−=∫∆∆212121212121ln)(12(8-78)2121lnyyyyym∆∆∆−∆=∆(8-79)(8-71)(8-78)mOGyyyN∆−=21(8-80)(8-77)(8-68)mxxxxxaKLxxxxxxaKLH∆−⋅=∆∆∆−∆−=21212121ln(8-81)2121lnxxxxxm∆∆∆−∆=∆(8-82)(8-72)(8-81)30mOLxxxN∆−=21(8-83)(8-75)∫−12yyeyydy+−−−−=AmxymxyAANOG111ln1112221(8-84)LmGA=1ANOGA12221mxymxy−−8-228-22()+−−−−=AmxymxyAANOL11211ln11(8-85)NOLA1121mxymxy−−8-22ye=f(x)(8-61)∫−=12)(yyeyyyaKGdyH(8-86)aKGyNOG∫−=12yyeOGyydyN(8-23b)Simpsony2y1(8-23a)yeyyyf−=1)(31∫++++++++=−−nyynnnffffffffdyyf0)422424(3)(1243210ΛΛξ(8-87)nyyn0−=ξnnyny1y0y28-23NOG8-5-3G(y1-y2)=L(x1-x2)(8-66)ye=f(x)(8-88)∫−==12yyeyOGOGyydyaKGNHH(8-67)∫−==12xxexOLOLxxdxaKLNHH(8-68)y1Gy2112211yGyGyG−==η(8-89)G1G2G1=G2=G32121yy−=η(8-90)12)1(yyη−=(8-91)HKya(HOG)Kxa(HOL)KyaKxa8-24)(11xxGLyy−−=(8-92)AB(-L/G)yyym(8-79)x1x2xm(8-82)(8-24)(8-21)8-24(m)(x2)y2y2x2ex2x2ex2x2e(8-25)y2x233y1y2x2x1L/Gx1L/G(8-87))(2121yyLGxx−+=(8-93)x18-26(b)y1y2x2L/Gx18-258-26GL8-26(b)minGLCy1x1minGLmin2121minxxyyGLe−−=(8-94)(8-93)8-26(c)GLminGLA34min)2~1.1(=GLGL8-50.025kmol/s2.0mol%0.1mol%101.3kPa293Ky=1.2xKya0.0522kmol/sm21m1.214.102.1/02.0001.002.0)/(2121min=−−=−−=xxyyGLe37.114.12.1)/(2.1/min=×==GLGL0139.037.1001.002.0/2211=−=+−=xGLyyx3221122111093.1001.00139.02.102.0ln001.0)0139.02.102.0(ln)()(−×=×−−×−=−−−−−=∆mxymxymxymxyym)/(0318.014025.022mskmolG⋅=×=πmaKGHyOG609.00522.00318.0===84.91093.1001.002.0321=×−=∆−=−mOGyyyNmNHHOGOG0.684.9609.0=×=⋅=35G(8-27a)Lx1x2y2()(8-74)(8-27b)8-27Gy1ACy1x1L/GG/L2121min)/(yyxxLGe−−=8-95(8-27c)BminLGminLG(8-66)(8-78)(8-81)8-62mol%26095%1200kmol/h0.5mol%1.3101.3kPa27y=0.125x278-288-61.2101.3kPa120y=3.16x1.36001.002.0)95.01()1(12=×−=⋅−=yyη16.0125.002.011===myxe123.0005.016.0001.002.02121min=−−=−−=xxyyGLe160.0123.03.13.1min=×==GLGLskmolhkmolG/333.0/1200==skmolL/1032.5333.0160.02−×=×=124.0)001.002.0(16.01005.0)(2121=−+=−+=yyLGxx2y2=0391.0124.016.311=×==mxye304.00391.0005.0124.02121min=−−=−−=yyxxLGe365.0304.02.12.1min=×=×=LGLGskmolLG/1094.11032.5365.0365.022−−×=××==G=1260kg/h8-29a8-29b378-29(8-30)LrLM2x′θθ++=′1212xxx(8-96)2x′x2y2AA’(8-30)8-301(8-30)2x1Kya388-5-41KyaKxa2KyaKxa(8-66)(8-88)(8-67)(8-68)(8-78)(8-81)8-7101.3kPa293K-2.195%y=1.18xKya0.820%123111205.0)95.01()1(yyyy=−=−=η)(05.0211121xxGLyyyy−=−=−111452.01.205.01yyx=−=111111122112211187.005.0452.018.1ln05.0)452.018.1(ln)()(yyyyyyymxymxymxymxyym=×−−×−=−−−−−=∆1.5187.0)05.01(1121=−=∆−=yyyyyNmOG39OGOGOGyyOGHHHGGaKGGGGGaKGH04.12.12.02.08.0==′=⋅′′=′′=′9.404.11.5==′=′=′OGOGOGOGOGHNHHHN)(2121xxGLyy−′′=′−21211571.0571.0)(1.22.1yyyyx′−=′−=′(a)2211221121ln)()(mxyxmymxyxmyyyNHHOGOG−′′−−′−′−′−=′=′2211ln11mxyxmyLGmNOG−′′−′−=′21118.1ln1.22.118.1119.4yxy′′−×−=11218.193.4xyy′−=′(b)(a)(b)12076.0yy=′11528.0yx=′924.0076.0111121=−=′−=′yyyyyyη167.105.0)076.0(2.1)()(2.111112121=−−=−′−yyyyyyGyyG40111122112211'188.0076.0528.018.11ln076.0528.018.1ln)()(yyyymxyxmymxyxmyym=×−−×−=−′−−′−′−=∆01.1187.0188.0==∆′∆mmyyKyaLtx28-31y2(H=)(8-31)mGLy2mGLy2y28-8418-795%98%+−−=AyyAANOG111ln11121562.01.218.11===LmGA2095.0111121=−=−=ηyy1.5]562.020)562.01ln[(562.011=+×−−=OGNOGOGNN='′+′′−′−=′AyyAANOG111ln11121′+−′−′−=AAA11111ln111'η′+−′−′−=AAA198.01111ln1111.53.01=′=′LmGA87.13.0562.0==′=′LmGLmGLL()