The corrosion causes of the catalysis and desulfurization system for heavy oil were analysed through the performance comparison between MDEA and DIPA,and some countermeasures were proposed.

• 通过对MDEA和DIPA两种脱硫溶液性质的对比，分析了重油催化脱硫系统腐蚀的原因，并提出了几种防腐蚀的对策。