T'=T"=T (2-1) ==F〓 (2-2) fi=fi=f fi=fi fi /y fi /x, P a'y P=x P (2-8) y,P=yixi (2-10) y Yi xi K1=y2/x1 Vi/y, K K K y 1n=1 RT V-lnz (2-15) dP RT So L On,/Pm (2-16) RT P Vm -bm To vm(vm +b a,=0.42748R272/P b,=0.08664RT/P 27R272/64P
T = T = T = （2-1） P = P = P = (2-2) ˆ ˆ ˆ i i i f f f = = = (2-3) L i V i f ~ f ~ = (2-4) f / y P ~ ˆ i v i i V = (2-5) f / x P ~ ˆ i L i i L = (2-6) l i OL i ˆ f i xf = (2-7) ˆ i yiP ˆ i xiP V L = (2-8) oL i i i i i V y P x f ˆ = (2-9) 2 i 1 i f ~ f ~ = (2-10) 2 i 2 i 1 i 1 i x = x (2-11) (2-12) j i i j i j ij K K x x y y = = (2-13) V L i i i i i ˆ ˆ x y K = = (2-14) t m t v i i d ln 1 ln j V Z V RT n P RT ˆ T ,V ,n − − = (2-15) dP 1 ln j 0 i t i − = P RT n V RT ˆ T ,P,n P (2-16) ( ) m m m m m m T v v b a V b RT P + − − = 0.5 ai R Tc,i Pc,i 2 2 = 0.42748 bi = 0.08664 RTc,i Pc,i ai 27R Tc,i 64Pc,i 2 2 = i i i K = y x
b=RT。/8P bn=∑y SRK方程 RT v(v+b) a1=aci·aa(r) an,=0.42748R2T2/P =p+m-(/r m1=0.48508+1.55171m-0.1561302 y b=∑y RT a b 0 Zm=PV/RT=V/V, -b)-a/RTV, 2√aa InI z RTt K Vi Yi ④"P 当x;→1时 ni=f/xf
bi = RTc,i 8Pc,i ( ) 2 m = i ai a y m = ibi b y SRK 方程： v(v b) a v b RT P + − − = ai ac,i i(T ) = • c,i c,i i ac, R T P 2 2 = 0.42748 ( ) ( ) 2 0.5 i T = 1+ mi 1- T Tc,i i mi i 2 = 0.48508 +1.55171 − 0.15613 ( ) 2 = i ai a y = ibi b y + − = 0 − + P ab V P a V P RT Vt b t t 3 2 ( ) Zm = PVt RT =Vt Vt − b − a RTVt t i m t i i RTV aa ln Z V b b ˆ ln 2 V b 1- t − − − = ˆ P f x y K V i oL i i i i i = = (2-17) 当 xi →1 时， i →1 (2-18) L i i L i i f ˆ f x ˆ = (2-19)
f 1 RT 2-20) P RT dP|=indi In P =Pas·er(p-P)yR」 (2-21) 当x1→0时,y;*→1 f=H=1im左 fi =H x (n, RTlny) (2-26) RTI In A A21x2 A hy=x2[42+2(421-A12kx] hy2=x2[41+2(42-A1)x2 X Iny,=l 4k 4=exr(n-2) x, g In y G Gxk
i i f P v - dP 1 ln P 0 i i L = P RT P RT f (2-20) ( ) s i s i L s i i P P i P i L i P P ln RT v P P dP ln P RT dP v P RT v P f ln s i s i − − = + + − = − RT 0 1 f P expv (P P ) RT S S i L i i S i L i = • − (2-21) 当 xi → 0 时， i →1 (2-22) i L i 0 oL i lim i x f ~ f H x → = (2-23) i L f i Hx ˆ = (T, P 一定， xi → 0 ) (2-24) ˆ f i xiH L i = (2-25) ( ) = = c i 1 i ln i n RT E G (2-26) i ln j i RT n G T ,P,n Ei = (2-27) 2 1 2 1 2 1 2 2 1 2 2 21 2 1 2 1 1 2 1 1 1 + = + = A x A x A ln A x A x A ln ( ) ( ) 21 12 21 2 2 12 21 12 1 2 1 2 ln 1 = x2 A + 2 A − A x ln = x A + 2 A − A x − = k j j j k i j j k x k x ln i x j 1-ln exp ( ) RT v v L ij ii i L j ij = − − = + − k k kj l j l j l l i j k k ki j i j k k ki j j i j i j i G x G x G x x G G x G x ln ij = (gij − gij) RT ( ) ij ij ij G = exp −
gii-g B C +-+一+ (2-28) 1+Bp+cpa d=2∑y;B Ing y: B:-lnz (2-31) B niy3ij =1+ (2-33) yi P P (2-34) y T yiyi Pq eXp RT>>VP-p K (2-37) K=YiPi 2-38) 1P13x1 y
gij − gij = = + + 2 + B 1 v C RT v Pv Z (2-28) = = 1+ BP + CP 2 + RT Pv Z (2-29) RT P ˆ B = − = C j 1 lni 2 y iB ij (2-30) = = − C j 1 i i ij ln 2 ln ˆ y B Z v (2-31) = = = c i 1 c i 1 B yi yj Bij (2-32) RT v Pv Z B = = 1+ (2-33) = = c i 1 i ci c i 1 i ci 2 y T y P T P (2-34) ( ) − = = RT S i L i V i S i S i i i i i exp V P p ˆ P P x y K (2-35) ( ) exp 1 S i L i − RT V P p ( ) S P pi RT v L i − K P P S i = i (2-36) i S i i x p p y = (2-37) p p K S i i i = (2-38) p p x y i S i i i = (2-39)
P K pi ①'P K;=2/f (2-41) (2-42) K yPs「r-p) exp (2-43 ④P 1=K1x1(i Vi 1 (2-46) K: =f(P,T,x, y) InK: =A-B /(T+Ci) (2-48) lnK1=A1-B1/(T+18-0.197) ∑Kx1 f()=∑K 设T→由PK图查K→∑K,x1-|f(m)≤e →结束 调整T
( ) − = RT S i L i V i S i S i i exp V P p ˆ P P K (2-40) V i L i i K = f f (2-41) L i i L i f x f ~ = (2-42) ( ) − = RT S i L i V i S i S i i i exp V P p P P K (2-43) yi = Ki xi (i =1,2, c) (2-44) = = c i 1 yi 1 (2-45) = = c i 1 xi 1 (2-46) Ki = f(P,T,x, y) (2-47) lnKi = Ai − Bi (T +Ci ) (2-48) lnKi = Ai − Bi (T +18 −0.19Tb ) (2-49) = = c i 1 Ki xi 1 (2-50) ( ) -1 0 c i 1 i i = f T = K x = (2-51) 设 T ⎯给定P ⎯→ 由 P-T-K 图查 Ki → = c i 1 i i K x → ︳ f(T) ︱≤ε ⎯⎯Y→ i x T →结束 N 调整 T