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JF-SN1 硫转移剂在重油催化裂化装置的工业应用
Industrial Application of JF-SN1 Sulfur Transfer Agent in a 3.5 Mt/a Heavy Oil Catalytic Cracking Unit
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- DOI:
- 作者:
- 许 勐，崔 崧 ，姜瑞宇，吴 宇，杨晓宇
Xu Meng, Cui Song, Jiang Ruiyu, Wu Yu, Yang Xiaoyu
- 作者单位:
- 中国石油大连石化公司
PetroChina Dalian Petrochemical Company
- 关键词:
- 重油催化裂化；硫转移剂；再生烟气；SO2 脱除；工业应用
heavy oil catalytic cracking; sulfur transfer agent; regenerated flue gas; SO2 removal; industrial application
- 摘要:
- 为解决重油催化裂化装置再生烟气 SO2 排放超标、碱液脱硫运行成本高和外排烟气蓝烟拖尾等问题，中国石油大连石化公司 350伊104 t/a 重油催化裂化装置在反再系统试用了 JFSN1 型硫转移剂。结果表明：JF-SN1 硫转移剂各项理化指标均符合工业应用要求；当系统藏量占比达 2%时，再生烟气脱硫入口 SO2 含量由空白期 603 mg/m3 降至 6 mg/m3，硫转移效率达98.23%，平稳期藏量占比维持 1.8%左右时，脱硫效率仍保持 90%以上；试用期间装置处理量稳定，烟机振动值、催化剂自然跑损率均无异常，反再系统流化正常，且有效消除了外排烟气蓝烟拖尾现象，彻底解决脱硫后烟气的视觉污染问题。该硫转移剂的应用大幅降低了碱液消耗量，扣除助剂成本后脱硫费用净降低 13.10%，实现环保与经济效益双重提升，具备在重油催化裂化装置长期推广使用的价值。
To address the problems of excessive SO2 emission in regenerated flue gas, high operating cost of alkali liquor
desulfurization, and blue smoke trailing of discharged flue gas in the heavy oil catalytic cracking unit, the JF-SN1 sulfur transfer
agent was tested in the reactor -regenerator system of a 3.5 Mt/a heavy oil catalytic cracking unit of PetroChina Dalian
Petrochemical Company. The results showed that all physical and chemical indexes of the JF-SN1 sulfur transfer agent met the
requirements for industrial application. When the inventory proportion of the agent in the system reached 2%, the SO2 content at
the inlet of the flue gas desulfurization unit decreased from 603 mg/m3 in the blank period to 6 mg/m3
, with the sulfur transfer
efficiency reaching 98.23%. In the stable operation period, the desulfurization efficiency remained above 90% when the inventory
proportion was maintained at about 1.8%. During the test period, the processing capacity of the unit was stable, no abnormalities
were found in the vibration value of the flue gas turbine and the natural loss rate of the catalyst, the fluidization of the reactorregenerator system was normal, and the blue smoke trailing of the discharged flue gas was effectively eliminated, thoroughly
solving the visual pollution problem of the flue gas after desulfurization. The application of this sulfur transfer agent significantly
reduced the consumption of alkali liquor, and the net desulfurization cost was reduced by 13.10% after deducting the cost of the
additive, achieving both environmental and economic benefits. It is worthy of long-term popularization and application in heavy oil
catalytic cracking units.