采用半连续精馏对甲酸甲酯-甲醇-水体系进行分离,通过多目标遗传算法优化关键操作参数,并应用动态模拟实现半连续精馏的多模式操作。研究进料的中间组成对传统连续精馏、隔壁塔精馏和半连续精馏过程的经济性影响。结果表明,相对于传统连续精馏,中间组成甲醇含量逐渐增大时,半连续精馏在处理年产量的上限方面表现更加适宜,其相应数值为15.78、15.21以及11.74 Mmol;与隔壁塔精馏相比,半连续精馏适宜年处理量上限值分别为8.52、8.23、12.63 Mmol。

Semi-continuous distillation is applied to separate methyl formate-methanol-water system,multi-objective genetic algorithm is used to optimize the key operational parameters,and dynamic simulation is employed to achieve multi-mode operation.The impact of feed intermediate composition on the economics of traditional continuous distillation,dividing wall tower distillation,and semi-continuous distillation processes is deeply investigated.It is indicated that compared with traditional continuous distillation,semi-continuous distillation shows more suitable for processing the upper limit of annual production,with corresponding values of 15.78,15.21,and 11.74 Mmol when the methanol content of the intermediate composition gradually increases.Compared with dividing wall tower distillation,semi-continuous distillation is suitable for annual processing capacity upper limit values of 8.52,8.23,and 12.63 Mmol.

王明军(1979-),男,本科,高级工程师,研究方向为油气田地面工程技术管理,wangmingjun8@126.com。