The result shows that the techni- cal and economical indexes of the unit are basically up to the design requirements,but there are still some prob- lemes,for example,the furnace...

• 改造后该装置仍存在几个问题：裂解炉数量不足、急冷水乳化、燃料气系统及蒸汽不平衡、循环水能力不足、丙烯塔损失大。