催化裂化装置技术改造与优化
发布时间：2018-09-19 14:20
【摘要】：随着原料重质化日益严重,重油催化裂化装置面临结焦严重的问题,不仅限制了长周期运行,在加工过程中能量的消耗也随之增加,因此降低能耗、长周期运行成为了石油加工过程重点考虑的方向。本论文以大庆炼化公司一套ARGG装置为研究对象,该装置处理量为100万吨/年,采用双提升管的FDFCC技术。针对装置能耗高的问题,对装置运行情况进行分析,找出了装置存在的问题,提出了优化方案以及改进措施。根据工业标定数据得出结论:反应汽提蒸汽量偏大,烟机回收功率偏低,原料雾化效果差是装置能耗高的主要原因;通过在再生器与提升管之间新增CRC-再生剂冷却器,使得产品分布得到优化并且节能效果显著;进一步对烟机结垢影响装置长周期运行因素进行了分析,提出对三级旋分器进行改造的举措,改善了装置长周期运行的瓶颈状态。通过对烟气轮机、反应汽提段、进料喷嘴、三旋分离器系统进行了一系列的技术改造,以及对装置一些用能不合理的工艺及流程进行了整改和优化,2010年装置综合能耗为63.94 KgEO/t,扣除汽油提升管的能耗影响其综合能耗共计下降了33.07个单位。CRC-FCC技术改造后干气+焦炭+损失收率低1.49个百分点、油浆收率降低0.42个百分点、轻收高2.3个百分点、液收高1.9个百分点、能耗实际降低10.26kgoil/t,总效益为8716.1万元/年。目前PHT-Ⅲ250分离单管在我装置已高效运行15个月,不仅年可增加经济效益384万元,而且为装置的长周期安全稳定运行提供了有利保证。
[Abstract]:With the heavy feedstock becoming more and more serious, the heavy oil catalytic cracking unit is facing the serious problem of coking, which not only limits the long period operation, but also increases the energy consumption during the processing process, thus reducing the energy consumption. Long-period operation has become the focus of the oil processing process. This paper takes a set of ARGG plant in Daqing Refinery and Chemical Company as the research object. The processing capacity of the unit is 1 million tons per year, and the double riser FDFCC technology is adopted. Aiming at the problem of high energy consumption, the operation of the unit is analyzed, the existing problems of the device are found out, and the optimization scheme and improvement measures are put forward. According to the industrial calibration data, it is concluded that the main reasons for the high energy consumption are the large amount of reaction steam stripping, the low recovery power of the smoke machine and the poor atomization effect of raw materials, and the addition of the CRC- regenerative cooler between the regenerator and the riser, The distribution of the product is optimized and the effect of energy saving is remarkable. Further, the factors affecting the long-period operation of the device are analyzed, and the measures of reforming the three-stage rotary separator are put forward to improve the bottleneck state of the device in long-period operation. A series of technical revamping has been carried out on flue gas turbine, reaction stripping section, feed nozzle and three-screw separator system. And the process and process of some unreasonable energy use of the unit were improved and optimized. In 2010, the comprehensive energy consumption of the unit was 63.94 KgEO/t, minus the energy consumption of gasoline riser. The total comprehensive energy consumption of the unit was reduced by 33.07 units. CRC-FCC technology was retrofitted and dried. The yield of gas coke loss is 1.49% lower. The oil slurry yield is reduced by 0.42 percentage points, the light yield is increased by 2.3 percentage points, the liquid yield is increased by 1.9 percentage points, the energy consumption is reduced by 10.26 kgoil / t, and the total benefit is 87.161 million yuan per year. At present, the PHT- 鈪，
本文编号：2250382
[Abstract]:With the heavy feedstock becoming more and more serious, the heavy oil catalytic cracking unit is facing the serious problem of coking, which not only limits the long period operation, but also increases the energy consumption during the processing process, thus reducing the energy consumption. Long-period operation has become the focus of the oil processing process. This paper takes a set of ARGG plant in Daqing Refinery and Chemical Company as the research object. The processing capacity of the unit is 1 million tons per year, and the double riser FDFCC technology is adopted. Aiming at the problem of high energy consumption, the operation of the unit is analyzed, the existing problems of the device are found out, and the optimization scheme and improvement measures are put forward. According to the industrial calibration data, it is concluded that the main reasons for the high energy consumption are the large amount of reaction steam stripping, the low recovery power of the smoke machine and the poor atomization effect of raw materials, and the addition of the CRC- regenerative cooler between the regenerator and the riser, The distribution of the product is optimized and the effect of energy saving is remarkable. Further, the factors affecting the long-period operation of the device are analyzed, and the measures of reforming the three-stage rotary separator are put forward to improve the bottleneck state of the device in long-period operation. A series of technical revamping has been carried out on flue gas turbine, reaction stripping section, feed nozzle and three-screw separator system. And the process and process of some unreasonable energy use of the unit were improved and optimized. In 2010, the comprehensive energy consumption of the unit was 63.94 KgEO/t, minus the energy consumption of gasoline riser. The total comprehensive energy consumption of the unit was reduced by 33.07 units. CRC-FCC technology was retrofitted and dried. The yield of gas coke loss is 1.49% lower. The oil slurry yield is reduced by 0.42 percentage points, the light yield is increased by 2.3 percentage points, the liquid yield is increased by 1.9 percentage points, the energy consumption is reduced by 10.26 kgoil / t, and the total benefit is 87.161 million yuan per year. At present, the PHT- 鈪，
本文编号：2250382
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