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为提高甲苯二异氰酸酯(TDI)流程中光气吸收塔生产负荷,采用Aspen plus模拟软件对其进行模拟分析和优化,考察了理论板数、吸收剂ODCB使用量和中间冷却器对塔顶光气和塔底氯化氢含量的影响,增加1台中间冷却器,优化了吸收剂ODCB使用量,提高了光气吸收塔生产负荷和操作稳定性,节约设备投资。
In order to increase the production load of phosgene absorption tower in the process of toluene diisocyanate (TDI), the Aspen plus simulation software was used to simulate the optimization and optimization. The theoretical plates, ODCB absorbent, And the bottom of the hydrogen chloride content, the increase of an intercooler, optimizing the amount of absorbent ODCB to improve the production of light gas absorption tower and operating stability, saving equipment investment.