ARGG工艺重油催化裂化装置节能降耗的研究

发布时间：2018-03-07 19:30

本文选题：节能降耗　切入点：重油催化裂化　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：目前,我国催化裂化装置的能耗非常高,已经占炼油工业总能耗的30%以上,采取有效的技术改造方法降低催化裂化装置能耗,对炼油企业来说,降低能耗是至关重要的。本论文针对大庆炼化公司1.8Mt/aARGG装置,采用北京石油化工科学研究院开发的ARGG专利技术,主要包括反应-再生系统、分馏系统、稳定系统、干气和液态烃及汽油脱硫系统、烟气余热回收系统。于2009年9月检修期间实施MIP-CGP技术改造,使稳定汽油烯烃含量降低10个单位以上,产品分布和油品质量得到有效提高,装置能耗在一定范围内发生了明显降低的现象,根据工业标定数据,分析了装置能耗高的主要原因为:油浆管线和换热器管束流速低,系统易结焦,内提升管曾经被磨穿,胺液再生塔经常波动,胺液再生质量差,外取热本体有热点,制约装置长周期运行的瓶颈因素等。经过科研人员和检修人员的扎实工作,通过对烟气轮机、反应汽提段、进料喷嘴、余锅系统、汽油精制等系统进行了一系列的技术改造,实现装置催化剂单耗降低;油浆外甩量降低;降低了装置非计划停工风险。催化剂单耗下降每年可节约催化剂690.20吨,催化剂不含税单价18325.43元/t,每年节约辅助材料费用1265万元。沉降器旋分效率提高,油浆固体物含量下降,可将油浆产率控制在合理范围内(4.5%),目的产品收率提高,ARGG装置催化裂化汽柴油产量增加。
[Abstract]:At present, the energy consumption of FCC units in China is very high, accounting for more than 30% of the total energy consumption in the refining industry. It is very important to reduce energy consumption. In this paper, the ARGG patent technology developed by Beijing Petrochemical Research Institute is adopted for the 1.8 Mt / a ARGG plant of Daqing Refinery and Chemical Company, which mainly includes reaction-regeneration system, fractionation system, stabilization system, etc. Dry gas, liquid hydrocarbon and gasoline desulphurization system, flue gas waste heat recovery system. During the maintenance period in September 2009, MIP-CGP technology was carried out to reduce the olefin content of stable gasoline by more than 10 units, and the product distribution and oil product quality were effectively improved. According to the industrial calibration data, the main reasons for the high energy consumption of the plant are as follows: the flow rate of slurry pipeline and heat exchanger tube bundle is low, the system is easily coked, and the inner riser pipe has been worn through. The regeneration tower of amine liquid often fluctuates, the regeneration quality of amine liquid is poor, there are hot spots in the external heat extraction body, the bottleneck factors that restrict the long period operation of the device, etc. Through the solid work of the scientific research personnel and the maintenance personnel, through the flue gas turbine, the reaction stripping section, A series of technical revamping have been carried out in the feed nozzle, residual pot system and gasoline refining system to reduce the unit consumption of catalyst and the quantity of oil slurry. The reduction of unit consumption of catalyst can save 690.20 tons of catalyst per year, the unit price of catalyst is 18325.43 yuan / t without tax, and the cost of auxiliary material is 12.65 million yuan per year. The slurry yield can be controlled within a reasonable range of 4.5%, and the yield of the product can be increased by increasing the output of FCC gasoline and diesel oil in the ARGG unit.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE966;X742

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