润滑油加氢装置的工艺设计和优化
发布时间：2018-07-29 12:59
【摘要】：随着对高规格润滑油需求量的增加,“全氢法”加工工艺越来越广泛地用于生产高规格润滑油。为了满足国内市场对高规格润滑油基础油的需求,炼化企业正推广高规格润滑油基础油的生产。在本文,设计了30万吨/年“全氢法”润滑油加氢工艺,用HYSYS流程模拟软件对全流程进行模拟、优化；并将模拟数据与现场实际数据进行对比验证。1、对工艺过程的能量进行了优化,包括一段反应进料/产物换热器、汽提罐顶气/混氢换热器、汽提罐顶气/循环氢换热器,提高了它们的换热温差,降低了装置能耗、电耗、燃气耗。2、对循环氢脱硫塔进行了模拟优化,包括吸收剂温度、吸收剂用量、塔板层数等,确定了循环氢脱硫塔最优操作条件。3、对常压塔工艺进行了模拟研究,确立了蒸汽用量与常底油5%馏出温度、塔顶热负荷的关系,最终建立了经济的汽提蒸汽用量。4、对减三线(基础油3)进行了换热流程的优化,增设了贫胺液换热器,满足了贫胺液预热的要求,降低了基础油3空冷器的热负荷,在降低装置能耗的同时,又解决了贫胺液热稳定性的问题。该工艺技术可以用来生产合格的45#变压器油、15#冷冻机油、12#和16#橡胶填充油,满足API-1509 Ⅱ类基础油对硫含量的要求,同时橡胶填充油满足色度、芳烃含量的要求,液收达到98wt%以上,装置能耗达到国内先进水平。
[Abstract]:With the increasing demand for high-specification lubricating oil, full-hydrogen process is more and more widely used to produce high-specification lubricating oil. In order to meet the demand of domestic market for high specification lube base oil, refineries are popularizing the production of high specification lube base oil. In this paper, 300000 t / a "total hydrogen process" lubricating oil hydrogenation process was designed, and the whole process was simulated and optimized by HYSYS process simulation software. The energy of the process is optimized by comparing the simulation data with the field data, including a reaction feed / product heat exchanger, a stripping tank top gas / hydrogen mixing heat exchanger, and a stripping tank top gas / circulating hydrogen exchanger. The heat transfer temperature difference is increased, and the energy consumption, electricity consumption and gas consumption of the unit are reduced. The recirculating hydrogen desulfurization tower is simulated and optimized, including the absorbent temperature, the amount of absorbent, the number of trays, etc. The optimum operating condition of circulating hydrogen desulfurization tower was determined. The simulation study of atmospheric pressure column process was carried out, and the relationship between steam consumption and 5% distillation temperature of constant bottom oil and heat load on top of tower was established. Finally, an economical steam stripping amount of .4 was established, the heat transfer process of the third line (base oil 3) was optimized, and the heat exchanger of the low amine liquid was added, which satisfied the requirement of preheating of the low amine liquid and reduced the heat load of the base oil 3 air cooler. At the same time, the energy consumption of the unit is reduced, and the thermal stability of the amine-poor solution is solved at the same time. This technology can be used to produce qualified oil of 4# transformer oil 15# refrigerated oil 12# and 16# rubber filling oil, which can meet the requirement of sulfur content of API-1509 class 鈪，
本文编号：2152745
[Abstract]:With the increasing demand for high-specification lubricating oil, full-hydrogen process is more and more widely used to produce high-specification lubricating oil. In order to meet the demand of domestic market for high specification lube base oil, refineries are popularizing the production of high specification lube base oil. In this paper, 300000 t / a "total hydrogen process" lubricating oil hydrogenation process was designed, and the whole process was simulated and optimized by HYSYS process simulation software. The energy of the process is optimized by comparing the simulation data with the field data, including a reaction feed / product heat exchanger, a stripping tank top gas / hydrogen mixing heat exchanger, and a stripping tank top gas / circulating hydrogen exchanger. The heat transfer temperature difference is increased, and the energy consumption, electricity consumption and gas consumption of the unit are reduced. The recirculating hydrogen desulfurization tower is simulated and optimized, including the absorbent temperature, the amount of absorbent, the number of trays, etc. The optimum operating condition of circulating hydrogen desulfurization tower was determined. The simulation study of atmospheric pressure column process was carried out, and the relationship between steam consumption and 5% distillation temperature of constant bottom oil and heat load on top of tower was established. Finally, an economical steam stripping amount of .4 was established, the heat transfer process of the third line (base oil 3) was optimized, and the heat exchanger of the low amine liquid was added, which satisfied the requirement of preheating of the low amine liquid and reduced the heat load of the base oil 3 air cooler. At the same time, the energy consumption of the unit is reduced, and the thermal stability of the amine-poor solution is solved at the same time. This technology can be used to produce qualified oil of 4# transformer oil 15# refrigerated oil 12# and 16# rubber filling oil, which can meet the requirement of sulfur content of API-1509 class 鈪，
本文编号：2152745
本文链接：https://www.wllwen.com/kejilunwen/shiyounenyuanlunwen/2152745.html
