芳烃联合装置的节能改造

Energy-saving Reconstruction of Aromatic Combination Plant

对芳烃联合装置进行了节能改造。在设备方面采取了热管修理、加热炉查漏堵漏、耐火衬里的修补等措施,从而有效提高了加热炉热效率;而在工艺改进方面则采取了歧化反应尾气流程改向、汽提塔干气流程改造、二甲苯塔操作优化等措施。

Energy-saving reconstruction was conducted on the aromatic combination plant. Some measures were carried out on equipment improvement such as repairing of the heat tubes, checking and stopping leaks for the heating furnace, and mending of the refractory lining, which effectively improved the thermal efficiency of heating furnace. Meanwhile, other measures were adopted for process improvement, such as redirection of tail gas flow in disproportionating reaction, transformation of dry gas flow in stripping tower, operation optimization of dimethyl benzene tower, and so on.