轮胎裂解油加氢装置中脱丁烷塔的操作优化分析  

Operation Optimization Analysis of De-butane Tower in Tire Cracking Oil Hydrogenation Units

作　　者：李志 LI Zhi(Shanghai Runhe Kehua Engineering Design Co.,Ltd.,Shanghai 210120,China)

机构地区：[1]上海润和科华工程设计有限公司,上海210120

出　　处：《化肥设计》2025年第1期74-76,共3页Chemical Fertilizer Design

摘　　要：将轮胎裂解油深加工为车用柴油等高附加值产品是一项新型技术,轮胎裂解油经加氢改制后的反应产物经主汽提塔脱除硫化氢后,主汽提塔塔顶得到的液相轻烃,再进入脱丁烷塔将石脑油馏分和碳四等轻组分进行分离,从而获得更多的石脑油馏分。因此,脱丁烷塔是提高产品总收率的重要环节。在初设条件下,对脱丁烷塔进行计算,并分析讨论进料温度、进料位置、质量回流比和操作压力对脱丁烷塔塔底石脑油馏分Reid蒸汽压和冷却器热负荷的影响,通过综合考虑,脱除碳四效果和降低能耗,进料温度、进料位置、质量回流比和塔顶操作压力分别设定为60℃、第12块板、0.6、1.0 MPa(g)较为合理。Deep processing of tire cracking oil into highly value-added products such as automotive diesel is a new technology.The reaction product of tire cracking oil reformed by hydrogenation sees its hydrogen sulfide removed by the main stripper,and the liquid phase light hydrocarbon obtained from the top of the main stripper then enters the de-butane tower to separate the naphtha distillate from the light carbon quaternary component,so as to obtain more naphtha distillate.Therefore,the de-butane tower is an important link to increase the total yield of the product.Under the initial conditions,the de-butane tower operation is calculated,and the influences of feed temperature,feed position,mass reflux ratio and operating pressure on the Reid vapor pressure of the naphtha distillate at the bottom of the de-butane tower and the heat load of the cooler are analyzed and discussed.Through comprehensive consideration,desirable effect of carbon removal and energy consumption reduction could be accomplished when the feed temperature,feed position,mass reflux ratio and tower top operating pressure are set at 60 o C,the 12 th plate,0.6 and 1.0MPa(g)respectively.

关 键 词：轮胎裂解油 脱丁烷塔 石脑油 蒸气压 热负荷 

分 类 号：TE624[石油与天然气工程—油气加工工程]