催化裂化油浆在炉管内结焦趋势的考察
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摘要
在延迟焦化中试装置上,以相同的原料,改变注汽量或加热炉出口温度的进料方式进行试验研究,主要考察催化裂化油浆在炉管内的结焦趋势。结果表明,温度是影响催化裂化油浆结焦最主要的因素,在较高的炉出口温度下,即使增加注汽量来提高炉管内的油气线速也难以延长炉管的运行周期。在进料量5 000 g/h、加热炉出口温度为500℃的条件下,催化裂化油浆采用3%的注汽量,其炉管结焦周期较长,且优于减压渣油在注汽量1.68%时的结焦周期。
In delayed coking pilot plant, using the same raw materials, experimental study on FCC slurry coking trend in furnace tube was carried out by changing of steam injection volume or heating furnace outlet temperature. The results showed that the temperature was the most important factor affecting the coking of FCC slurry. And it was difficult to prolong the operation cycle of the furnace tube by increasing the steam injection volume to improve the gas line speed in the furnace when heating furnace outlet temperature was higher. When the feed rate was 5 000 g/h,the heating furnace outlet temperature was 500 ℃, the amount of steam injection was 3%, the furnace tube coking period was longer, and better than vacuum residuum coking cycle under steam injection volume of 1.68%.
In delayed coking pilot plant, using the same raw materials, experimental study on FCC slurry coking trend in furnace tube was carried out by changing of steam injection volume or heating furnace outlet temperature. The results showed that the temperature was the most important factor affecting the coking of FCC slurry. And it was difficult to prolong the operation cycle of the furnace tube by increasing the steam injection volume to improve the gas line speed in the furnace when heating furnace outlet temperature was higher. When the feed rate was 5 000 g/h,the heating furnace outlet temperature was 500 ℃, the amount of steam injection was 3%, the furnace tube coking period was longer, and better than vacuum residuum coking cycle under steam injection volume of 1.68%.
引文
[1]王宝石,朱建华,王龙延,等,提高液体收率的上进料延迟焦化新工艺[J].石油学报(石油加工),2012,28(4):544-549.
[2]贾中辉,刘刚,掺炼催化油浆对延迟焦化装置的影响[J].石化技术与应用,2016,34(1):54-57.
[3]杨万强,掺炼FCC油浆对延迟焦化装置的影响[J].炼油技术与工程,2012,42(11):14-17.
[4]Xiao:STUDY ON CORRELATIVE METHODS FOR DESCRIBING COKING RATE IN FURNACE TUBES[J].PETROLEUM SCIENCE AND TECHNOLOGY,2000,18(3&4):305-318.
[5]黄新龙,王洪彬,亚飞,等,在线循环延迟焦化实验装置的建设及其应用[J].石油化工设计,2014,31(3):1-3.
[6]王洪彬,韩海波,江莉,等,循环比塔河常压渣油延迟焦化工艺过程的影响[J].石油炼制与化工,2016,47(1):58-61.
[7]胡尧良,延迟焦化加工FCC油浆的经济和技术分析[J].炼油技术与工程,2006,36(1):51-59.
[8]王安华,翟志清.第四届(2010)国际炼油技术进展交流[M].北京:中国石化出版社,2015:466-471.
[2]贾中辉,刘刚,掺炼催化油浆对延迟焦化装置的影响[J].石化技术与应用,2016,34(1):54-57.
[3]杨万强,掺炼FCC油浆对延迟焦化装置的影响[J].炼油技术与工程,2012,42(11):14-17.
[4]Xiao:STUDY ON CORRELATIVE METHODS FOR DESCRIBING COKING RATE IN FURNACE TUBES[J].PETROLEUM SCIENCE AND TECHNOLOGY,2000,18(3&4):305-318.
[5]黄新龙,王洪彬,亚飞,等,在线循环延迟焦化实验装置的建设及其应用[J].石油化工设计,2014,31(3):1-3.
[6]王洪彬,韩海波,江莉,等,循环比塔河常压渣油延迟焦化工艺过程的影响[J].石油炼制与化工,2016,47(1):58-61.
[7]胡尧良,延迟焦化加工FCC油浆的经济和技术分析[J].炼油技术与工程,2006,36(1):51-59.
[8]王安华,翟志清.第四届(2010)国际炼油技术进展交流[M].北京:中国石化出版社,2015:466-471.