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分析了新、老汽油加红装置主要设备在临红及湿硫化氢环境中选材的依据及其差异,特别是对介质中湿硫化氢和芳烃含量都高的设备防腐进行了探讨.“,”In this article, the bases and their differences for selecting the materials used in the old and new equipment for gasoline hydrogenation devioes were analyzed. The corosion protection methhods for the equipment with high volume of wet hydrogen sulphide and aromatic hydrocarbon were especially discussed.