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石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
延迟焦化装置小比例掺炼催化油浆的工业应用
王晓强杨有文张宏锋赵永山李良
中国石油独山子石化分公司
2017
摘要延迟焦化装置小比例掺炼催化澄清油，可以解决油浆出路问题。独山子石化1.2Mt/a延迟焦化装置实验结果表明①小比例掺炼催化油浆澄清油对焦化装置的换热影响较小；②蜡油收率、焦炭收率略上升，干气及各液体收率略下降；③未对焦炭质量和工艺操作造成影响；④掺炼后未造成加热炉炉管结焦趋势增加，也没有造成设备损坏；掺炼催化油浆后，每年经济效益达到1328万元，表明小比例掺炼催化油浆具有可行性。
关键词延迟焦化催化油浆澄清油炉管结焦小比例
中图分类号：TE624.3+2
文献标志码：A
DOI:10.3969/j.issn.1007-3426.2017.05.004
Industrial application of delayed coking unit blending the catalytic
oil slurrywithsmallproportion
Wang Xiaoqiang,YangYouwen,ZhangHongfeng,Zhao Yongshan,Li Liang
PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang, Chino
Abstract: Catalytic clarification oil can be blended in the delayed coking device with small proportion to solve the problem of oil slurry outlet . The experimental results of Dushanzi petrochemical 1 .2 Mt/a delayed coking device showed that : ①it had minor effect of small proportion of blending catalytic oil slurry on heat exchange of the coking unit ; ②the yield of wax oil and coke slightly increased, dry gas and the liquid yield slightly decreased ; @it had no effect on coke quality and process operation ; @the coking trend of heating furnace tube didn't increase after blending , and it also didn't cause the damage of equipment ; the economic benefit reached 1 328 X10* RMB yuan per year after blending catalytic oil slurry, which showed it was feasible for blending catalytic oil slurrywith small proportion.
Key words : delayed coking , catalytic slurry oil , clarified oil, furnace tube coking , small proportion
由于中国石油独山子石化分公司1.0Mt/a蜡油
加氢项目的投产，使得加氢后的蜡油性质变轻，进入催化裂化装置的原料油性质变好，导致催化油浆产出量下降至约3t/h，催化油浆作为燃油外卖价格低廉，经济收益较低。在此背景下，独山子石化公司为满足炼厂生产优化需要，完成了油浆捕获沉降剂技术在催化裂化装置油浆系统的施工，即通过使用油浆捕获沉降
剂、剂油混合技术、罐区沉降，对催化油浆进行处理后，作为原料进人延迟焦化装置进行加工。催化油浆掺入焦化装置进行加工，既可增加延迟焦化装置原料，又可减轻油浆回炼负担，还可为公司带来经济收益。
催化油浆与减压渣油性质分析对比催化油浆与减压渣油性质见表1]。
作者简介，王晓强（1982一），男，工程师，2007年毕业于辽宁石油化工大学化工工艺专业，主要从事焦化装置和蒸馏装置班组管理工作，研究龄延迟焦化装置结焦。E-maillye_wangxqpetrochina.com.en