OP-II-3

PP-II-6dv= kdtl( v − v f− ), (4)where k l is the catalyst carry-over, v f is the remaining part of the catalyst by the endof the process.For a pseudo zero-order reaction, the reactor capacity is equal to the reaction rate:G0= kaVv = k exp( − A T )aVv , (5)where G is the unit-per-hour productivity, V is the initial catalyst load in the rector, A =E/R, E is the activation energy.From here it followsT0lnkA= . (6)+ lna + lnV − lnGSubstituting expression (6) into (3) and integrating, one obtainsIn equation (7)* 1 m[( m 1)k t 1] 1 −− +a = if m ≠ 1 and a = exp( −kt ) if m = 1. (7)dm = 2 − A A , k kd( k G) P2P1The integration of equation (5) givesd*( 1 − v ) exp( −kt )0− A= ,v = v +(8)fflAfter substituting expression (7) and (8) into (6), one obtains function T=f(t) underthe constant G.dRFrom condition maxima (where profitdGR =βAtf∫Gdt − βt f + tc∫t + tc*dt − β −1 23β400β 1 – difference between price of vinyl acetate and acetylene and acetic acid ,β 2 и β 3 – semi-variable and semi-fixed costs, respectively, β 4 – price of catalysisloading, t f – process duration, t c – reloading catalysis duration) the theoretical optimalproductivity was estimated.346