论文部分内容阅读
利用PROII优化模拟软件、经验计算公式和工业试验,对洛阳石化2号催化裂化装置进行节能分析,依据分析结果对其进行优化改造。原分馏塔柴油换热流程,增加高温柴油与原料油换热流程,促使高温油浆多产生3.5MPa中压饱和蒸汽3t/h。用两种方法分别计算隔离余热锅炉2号省煤器前后的能耗变化,得出隔离2号省煤器后装置能耗分别增加1.256kg标油/t和1.341kg标油/t;对更新并投用余热锅炉2号省煤器进行效益分析,得出每年可增效265万元。对1.0MPa蒸汽系统进行改造,用套筒风代替1.0MPa蒸汽作为套筒提升介质,并对提升管预提升蒸汽用量和柴油汽提蒸汽用量进行调整。三项措施可分别减少1.0MPa蒸汽用量0.88t/h、0.8t/h、0.7t/h,既降低了装置能耗,每年增效187万元,又能减少催化剂的高温水热失活和酸性水排放量,减轻下游污水汽提装置的压力,减少环境污染。
Using PROII optimization simulation software, experience calculation formula and industrial experiment, the energy-saving analysis of Luoyang Petrochemical No.2 catalytic cracking unit was carried out. Based on the analysis results, it was optimized and reformed. The original fractionating tower diesel heat exchange process, increase the high-temperature diesel and feedstock heat transfer process, to promote high-temperature slurry to produce 3.5MPa pressure saturated steam 3t / h. Two methods were used to calculate the energy consumption of No.2 economizer before and after the isolation of the waste heat boiler respectively. The results showed that the energy consumption of the unit after the No.2 economizer was increased by 1.256kg / t and 1.341kg / t respectively, And investment in waste heat boiler No. 2 economizer for benefit analysis, obtained annual synergy 2.65 million yuan. The steam system of 1.0MPa is reformed, and the sleeve wind instead of 1.0MPa steam is used as the sleeve lifting medium. The amount of pre-lift steam and steam stripping steam of riser is adjusted. The three measures can reduce 1.0MPa steam consumption 0.88t / h, 0.8t / h, 0.7t / h, not only reduce the energy consumption of the unit, the annual efficiency of 1.87 million yuan, but also reduce the high-temperature hydrothermal catalyst deactivation and Acidic water discharge, reduce the pressure of the sewage stripping device downstream to reduce environmental pollution.