CAJ | 학술논문

反应精馏技术是将反应和精馏两个单元操作耦合在一个设备中同时进行,其非线性给反应精馏过程的平稳操作和过程控制提出了更高的要求.目前,反应精馏过程控制研究都是针对特定反应体系进行的有针对性的研究,对于乙酸戊酯反应体系的控制研究少有报道.本文利用Aspen Plus和Aspen Dynamic软件对乙酸戊酯的反应精馏过程进行动态模拟,针对塔釜产品组成要求提出温度控制和组成控制两种不同的控制方案,对两个控制系统分别进行±10%的进料流量扰动测试和酸醇比为1:1、1.2:1的进料组成扰动测试.研究了不同扰动对产品质量的影响并比较了两种方案在不同扰动干扰下的控制效果.结果表明:进料组成扰动会对两个控制方案造成较大影响;温度控制方案的控制稳定性要好于组成控制方案.
반응정류기술시장반응화정류량개단원조작우합재일개설비중동시진행,기비선성급반응정류과정적평은조작화과정공제제출료경고적요구.목전,반응정류과정공제연구도시침대특정반응체계진행적유침대성적연구,대우을산무지반응체계적공제연구소유보도.본문이용Aspen Plus화Aspen Dynamic연건대을산무지적반응정류과정진행동태모의,침대탑부산품조성요구제출온도공제화조성공제량충불동적공제방안,대량개공제계통분별진행±10%적진료류량우동측시화산순비위1:1、1.2:1적진료조성우동측시.연구료불동우동대산품질량적영향병비교료량충방안재불동우동간우하적공제효과.결과표명:진료조성우동회대량개공제방안조성교대영향;온도공제방안적공제은정성요호우조성공제방안.
Reactive distillation (RD),combining reaction with separation in a single process unit,has received significant attention. However,due to non-linear coupling of reaction and separation,steady operation and process control are more demanding. At present,the research of control method for the reactive distillation was focused on the designated reactive system. And amyl acetate reactive system has almost not been reported. In this paper,the RD dynamic simulation of amyl acetate was studied with Aspen Plus and Aspen Dynamic. Temperature control method and composition control method were proposed so that the operation results of RD satisfied the production demand. Feed flow rate and feed composition were regarded as two disturbances to test the control methods. The impact of different disturbances on product composition was studied and the control effects of two methods were compared when facing different disturbances. The simulated results showed that feed composition had greater influence on the control and the temperature control method was more stable than the composition control method.