华北理工环境工程原理教案第8章 吸收

12§8-1CO2NO2HClSO2SO2Ca(OH)2Na2CO3NOxSO2H2S,HFNOx——SO2(1)SO2SO2(2)HClSO2,NOx,CO2,CO(3)——3——(1)(2)(3)(4)§8-21.2.Henryp*A——Pa8.2.1xA——E——Pa25E(kPa)CO5.88×106CO21.66×105H2S0.552×105SO20.413×104*AApEx4p*A——Pa8.2.2cA——Akmol/m3H——kmol/(m3·Pa)8.2.3m——yA*——xA——HcEmpE0pPac0kmol/m38.2.8XA8.2.91.2.8.2.108.2.128.2.118.2.133.1x1y1myxx1118.2.14y2x2222mxyy8.2.15*AAcpH*AAymx*1(1)AAAYmXmX*AAYmXyAxA*AAyyy*AAppp*AAxxx*AAccc519238.2.16kG——kmol/(m2·s·Pa)8.2.17kL——m/s8.2.198.2.168.2.19pAiGLApApAicAicAcAi=HpAi()()1AAiAGGAAiGppNkppk()()1AiAALLAiALccNkcckAiAicHp*AAcHp*()()1AiAALLAiALppNkccHk6pA*——cAPa8.2.20KG——,kmol/(m2·s·Pa)8.2.218.2.22cA*——kmol/m3KL——,m/sKGKLkGkL1HNH3HCl2H,CO2,O23SO2111GGLKkHk*()AGAANKpp*()ALAANKcc11LGLHKkkGLKHK111GGLKkHk11LGLHKkkGGkKLGHkk11LGkkH1LLkK7P2954(1)(2)(3)(4)(5)(6)(7)(8)§8-3ABBMBAABAAApApAiA+BMBMcAi8A[A]——[A]AHpA*aAbBmMmabMKAB1mabMAKB1*1maAbAMpHHKB8.3.120SO2SO25.05kPaSO2SO2SO221.5610Hkmol/kPa·m3211.710Kkmol/m3SO222SOSOgl+-223SO+HOH+HSO[SO2]21.56105.050.0788AAcHpkmol/m3[SO2][HSO3-]+-312HHSOSOK-2312HSOSO1.7100.07880.0366Kkmol/m3SO2-23SO+HSO0.07880.03660.1154kmol/m3=7.4kg/m32223SO+HOHSOSO2H2SO3()AGAAiNkppAiAicHp910%§8-4*()ALAANKcc'ALLNkckc8.3.28.2.2SO2(1)71.1110GKkmol/(m2·s·kPa)0.03101.303.039AApppkPa771.11103.0393.3710AGNKpkmol/(m2·s)(2)SO2SO206110GGKkkmol/(m2·s·kPa)0.03101.303.039AApppkPa661103.0393.03910AGNKpkmol/m2·s1012A8.4.1qnGkmol/sqnLkmol/sY2//,yxYX,qnLYXGLYXYXY+dX+ddqnmn1212()()nGnLqYYqXX22()nLnGqYXXYq11()nLnGqYXXYq1212()nLnGYYqqXX*11XYm1212min*1212()()nLnGnGYYYYqqqXXYmX11qnLmin1.NOGHOG1.——2.——qnL/qnGm1/S——SYXABY=Y-Y*Y1Y2min(1.12.0)nLnLqqOGOGhHN11221212112*12122ln()YYOGYYmdYYYdYYYYYYNYYYYdyYYYY1212lnmYYYYY1212*()XOLXmdXXXNXXX1212lnmXXXXX*YmX11()nLnGqYXXYq*22()nGnLqYmYYXq1122*22()()YYOGYYnGnLdYdYNYYqYmYYXq122211ln(11)11OGYmXNSSYmXSnLnGqSmq1222OGYmXNYmX12Y2,NOG,NOG,Y2(1)(2)(3)(4)(5)(6)(7)P295710