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一、前言世界各地使用石油精炼加氢裂解脱硫装置已有近25年的历史。过去这些高压容器多用以2(1/4)Cr-1Mo钢为主的Cr-Mo低合金钢制造。但在重油裂解及煤炭液化等合成燃料的生产工艺中,设备需在高温高压加氢反应条件下运转,原来的Cr-Mo钢在环境强度以及经济性等方面就显得不够适用。加氢裂
I. Preface The petroleum refining hydro-cracking desulfurization equipment has been used around the world for nearly 25 years. In the past, these high pressure vessels were mostly made of Cr-Mo low alloy steel, mainly 2 (1/4) Cr-1Mo steel. However, in the production process of synthetic fuels such as heavy oil cracking and coal liquefaction, the equipment needs to be operated under the conditions of high temperature and high pressure hydrogenation and the original Cr-Mo steel is not suitable for environmental strength and economy. Hydrogen cracking