2.KineticanalysisFactors affecting the reaction rate has temperature,hydrogen ratio, and the structure ofpressure,1reactants
2. Kinetic analysis Factors affecting the reaction rate has temperature, pressure, hydrogen ratio, and the structure of reactants
(1）Influence ofreactiontemperatureIrreversiblereaction:Kpis large enough, Tf, rt, but T ↑ , S 1(because side reaction activation energy is large astemperature increasing)
（1）Influence of reaction temperature Irreversible reaction： KP is large enough，T↑ ， r↑, but T↑ ，S↓ (because side reaction activation energy is large as temperature increasing)
Reversiblereaction:AHO-△H0In Kp :(RTKp = A.eRT: △Ho<0, ::TT, KplKp is large at low temperature,dynamics is dominantT↑, r个Kp is small at high temperature, thermodynamics isdominant.k2 ↑↑, T↑,rtotal
∵ △ H0 < 0，∴ T↑ ，KP↓ KP is large at low temperature, dynamics is dominant. T ↑ ， r ↑ KP is small at high temperature, thermodynamics is dominant. k2 ↑ ↑ ，T ↑ , rtotal ↓ Reversible reaction：
Top temperature, r is the biggest valueTQPRTE-EIn1+E,-E,Te:The equilibrium temperature correspondingconversion x.The conversion is low at initial reaction, and Top ishigher, the conversion increases with the reactionproceeding.In order to increase r, k, should be decreased, andtemperature should be decreased
Top temperature, r is the biggest value Te: The equilibrium temperature corresponding conversion x. The conversion is low at initial reaction, and Top is higher, the conversion increases with the reaction proceeding. In order to increase r , k2 should be decreased, and temperature should be decreased
1最佳反应度曲线X;X,TxRelationship betweenreactionrateand衡曲线temperature forreversible exothermicreaction最佳反应溢度曲线T-X curve for reversible exothermic reaction
Relationship between reaction rate and temperature for reversible exothermic reaction T-X curve for reversible exothermic reaction