进出口流率变化的多组分质量交换网络综合方法研究

现有质量交换网络综合的研究多限于贫、富流股中杂质含量较低,流股流率可近似为固定值的多组分体系,为此研究了传质负荷相对较大的相容多组分质量交换网络,将流股进出口流率作为变量进行优化.此外,还考虑了温度和压力对传质相平衡方程的影响,将传质浓度差也作为变量进行优化以权衡操作费用和设备投资费用,以年度总费用最小为目标函数建立了非线性规划的数学模型,借助自适应模拟退火遗传算法求解,同步计算出贫、富流股进出每一个传质单元设备的最佳流率以及优化的传质浓度差和质量交换网络结构.

Study of multi-component mass exchange network synthesis with variable flowrates of inlet and outlet

Most present researches on the synthesis of mass exchange network focus on the conditions of tiny mass transfer load,where the inlet and outlet flowrates of the rich and lean streams can be regarded as constants.The condition of a little larger mass transfer load for compatible contaminants between rich and lean streams is taken into consideration,where the flowrates of the streams are taken as a set of variables instead of approximately being regarded as constants.Besides,the effect of temperature and pres...