加氢装置高压串低压危害及措施分析

Analysis of Hazard and Measures of High Pressure Series Low Pressure in Hydrogenation Unit

目前石化企业涉及较多的加氢装置用于产品质量升级,如重油加氢(如渣油加氢)、汽油加氢、柴油加氢等,在加氢装置生产过程中,特别是重油加氢装置生产过程中,存在较大的压力差,即部分设备操作压力为高压,而部分设备为低压或常压。如后续精馏装置,若工艺设计不合理,忽视高压串低压危险概率或操作不当,导致高压串低压,则可能引发较严重的事故后果,而高压串低压后果风险程度往往属于“不可容忍”范围。若想防止高压串低压,首先需要了解高压串低压的原因,即发生机理,然后从降低事故发生概率和事故后果角度出发,采取措施预防危害。

At present,petrochemical enterprises involve more hydrogenation equipment for product quality upgrading,such as heavy oil hydrogenation(such as residue hydrogenation),gasoline hydrogenation,diesel hydrogenation,etc.,in the production process of hydrogenation units,especially During the production process of heavy oil hydrotreating unit,there is a large pressure difference,that is,some equipment operating pressure is high pressure,and some equipment is low pressure or normal pressure,such as subsequent rectification equipment,if the process design is unreasonable,ignore the dangerous probability of high pressure series low pressure Or improper operation,resulting in high voltage string low pressure,may lead to more serious accident consequences, and the high-voltage string low-pressure consequences of risk is often in the“ untolerable” range.If you want to prevent high-voltage series low voltage,you first need to understand the cause of high-voltage string low-voltage,that is,the mechanism,and then take measures to prevent hazards from the perspective of reducing the probability of accidents and the consequences of accidents.