控制蓝烟和拖尾的增强型RFS硫转移剂的工业应用
|
摘要
为解决湿法脱硫塔蓝烟和烟气拖尾问题,在中国石化某企业的一套MIP-CGP装置上进行了增强型RFS硫转移剂的工业应用试验。助剂自2017年7月24日开始加注,在经过初始快速累积到系统藏量约1.5%,且于9月下旬按进料计剂耗约0.024kg/t稳定加注时,进行了应用总结。结果表明,硫转移剂的应用对裂化产物分布、产品性质和装置运行无负面影响,可大幅降低烟气中SO_2和SO_3浓度,从而降低脱硫塔操作负荷和碱液消耗量,同时还可降低外排废水和循环液盐含量与COD,消除了蓝烟现象,显著改善了脱硫塔烟气拖尾情况。
To resolve the problem of blue smoke and plume tailing from scrubber,a commercial trail of improved RFS SO_x transfer additive was performed on a MIP-CGP unit of SINOPEC.After the initial rapid accumulation,the system storage is about 1.5% of catalyst inventory and then the additive is steadily added with rate of 0.024 kg/t based on fresh feed,the industrial application was summed up.The results showed that the application of RFS additive has little influence on product distribution,product properties and unit operation.SO_2 and SO_3 in flue gas is significantly decreased,therefore the consumption of NaOH solution is also decreased.Furthermore,TDS and COD in waste water and circulating water decline obviously.Blue smoke is diminished and plume tailing is well controlled.
To resolve the problem of blue smoke and plume tailing from scrubber,a commercial trail of improved RFS SO_x transfer additive was performed on a MIP-CGP unit of SINOPEC.After the initial rapid accumulation,the system storage is about 1.5% of catalyst inventory and then the additive is steadily added with rate of 0.024 kg/t based on fresh feed,the industrial application was summed up.The results showed that the application of RFS additive has little influence on product distribution,product properties and unit operation.SO_2 and SO_3 in flue gas is significantly decreased,therefore the consumption of NaOH solution is also decreased.Furthermore,TDS and COD in waste water and circulating water decline obviously.Blue smoke is diminished and plume tailing is well controlled.
引文
[1] Sexton J A.FCC emission reduction technologies through consent decree implementation:FCC SOxemissions and controls[M]∥Occelli M L.Advances in Fluid Catalytic Cracking.CRC Press,2010:291-314
[2]陈俊武,许友好.催化裂化工艺与工程[M].3版.北京:中国石化出版社,2015:481-488
[3]张德义.面临新的形势,迎接新的挑战,进一步发挥催化裂化在原油加工中的作用[C]∥催化裂化协作组第十一届年会报告论文选集,九江,2007:13
[4]蒋文斌,冯维成,谭映临,等.RFS-C硫转移剂的试生产与工业应用[J].石油炼制与化工,2003,34(12):21-25
[5]田文君,张磊,宋海涛,等.新型硫转移剂在不完全再生催化裂化装置上的工业应用[J].石油炼制与化工,2017,48(4):65-68
[2]陈俊武,许友好.催化裂化工艺与工程[M].3版.北京:中国石化出版社,2015:481-488
[3]张德义.面临新的形势,迎接新的挑战,进一步发挥催化裂化在原油加工中的作用[C]∥催化裂化协作组第十一届年会报告论文选集,九江,2007:13
[4]蒋文斌,冯维成,谭映临,等.RFS-C硫转移剂的试生产与工业应用[J].石油炼制与化工,2003,34(12):21-25
[5]田文君,张磊,宋海涛,等.新型硫转移剂在不完全再生催化裂化装置上的工业应用[J].石油炼制与化工,2017,48(4):65-68