加氢裂化装置开停车节能减排措施

Energy Saving and Emission Reduction Measures in Startup and Shutdown Processes of Hydro-cracking Plant

分析了扬子石化芳烃厂加氢裂化装置开停车中的物耗、能耗,介绍了2014年装置检修开停车节能减排措施,即合理设置流程减少氢气排放、密封蒸煮降低现场异味、利用密度差最大化回收物料、利用开工蒸汽喷射泵减少氮气用量、利用重整氢进行氢气气密以及维持反应器器壁温度等,这些节能措施的实施不仅在开停车过程中减少了物料的排放、燃料和氮气的使用量,而且大大降低了现场异味、缩短了开车时间,取得了良好效果。

Energy consumption and materials consumption were analyzed in startup and shutdown processes of hydro-cracking plant. Energy saving and emission reduction measures were introduced in startup and shutdown processes. These measures included setting up reasonable process to reduce hydrogen emission,sealing cooking to reduce chemical odor,maximizing the recovery of materials according to the density difference,using steam jet pump to reduce nitrogen consumption,using reformer hydrogen in hydrogen tightness test and maintaining the wall temperature of reactors. The implementation of energy- saving measures reduced materials emission,fuel consumption and nitrogen consumption in startup and shutdown processes as well as reduce chemical odor and shorten the start- up time. Good results were achieved because of the implementation of energy saving and emission reduction measures.