降低混合脱氢装置芳烃溶剂消耗的可行性措施  

Feasibility Measures for Reducing Aromatic Solvent Consumption in Mixed Dehydrogenation Units

作　　者：田萍萍 白永涛 马健 巩文博 贾诗凡 刘星博 TIAN Pingping;BAI Yongtao;MA Jian;GONG Wenbo;JIA Shifan;LIU Xingbo(Light Hydrocarbon Center of Yan'an Petrochemical Plant,Shaanxi Yanchang Petroleum(Group)Co.LTD.,Yan'an,Shanxi 727406)

机构地区：[1]陕西延长石油(集团)有限责任公司延安石油化工厂轻烃中心,陕西延安727406

出　　处：《化工生产与技术》2023年第4期34-37,I0005,共5页Chemical Production and Technology

摘　　要：分析了300kt/a丙烷-异丁烷混合脱氢装置芳烃溶剂消耗量的相关因素,表明芳烃溶剂馏程、冷后温度、原料组成变化是影响芳烃溶剂消耗量的主要因素。提出了降低芳烃溶剂消耗量可行性措施,通过优选馏程较重的芳烃溶剂、保证反应产物温度低位运行、保持C3/C4比例不变、控制合适的反应温度、改造芳烃溶剂再生单元等,降低了芳烃溶剂消耗,每年可节约芳烃溶剂费用288~576万元。The related factors of aromatic solvent consumption in 300 kt/a propane-isobutane mixed dehydrogenation unit were analyzed.The results showed that aromatic solvent distillation range,cooling temperature and raw material composition change were the main factors affecting aromatic solvent consumption.The feasible measures to reduce the consumption of aromatic solvent were put forward.By optimizing the aromatic solvent with heavy distillation range,ensuring the low temperature operation of the reaction product,keeping the C3/C4 ratio unchanged,controlling the appropriate reaction temperature,and reforming the regeneration unit of aromatic solvent,the consumption of aromatic solvent was reduced,and the cost of aromatic solvent could be saved by 2.88~5.76 million yuan per year.

关 键 词：混合脱氢 芳烃溶剂 馏程 C3/C4 温度 反应深度 节能降耗 

分 类 号：TQ032.41[化学工程]