河南煤化煤制乙二醇产出合格产品

石油化工腐蚀与防护第29卷是减缓设备腐蚀的前提,严格控制各项原油指标,4)改善循环水水质:通过增加过滤网及时不要超过装置设防值。同时应加强原油的调合,清理循环水凉水池中的泥砂等杂物,加强循环水减小原油品种和性质频繁波动对装置造成的的药剂管理,改善循环水的品质;增加牺牲阳极影响。选择更好的防腐蚀涂料,并对防腐蚀施工的质量(2)材质升级:四蒸馏装置虽为新建装置,但进行有效的监督。由于设计时未考虑高温环烷酸腐蚀,致使部分高温部位腐蚀严重。单纯的高温硫腐蚀采用C5Mo参考文献和CMo材料即可,如果同时存在较重的环烷酸腐蚀,则要选用316L和317L材料[1]高延敏,陈家坚,雷良才环烷酸腐蚀研究现状和防护对策(3)加强“一脱三注”工艺防腐蚀措施:优化[].石油化工腐蚀与防护,2000,17(2):3843工艺防腐蚀措施是解决四蒸馏装置低温轻油部位[2]敬和民,郑玉贵,姚志铭,等.环烷酸腐蚀及其控制[冂].石油化工腐蚀与防护,1999,16(1):1-5腐蚀的关键。要加强电脱盐的运行管理和优化,[3]刘小辉加工高硫原油的腐蚀与防护对策[]石油化工设筛选和应用适应性强的破乳剂和脱盐剂;应及时备技术,2005,26(5):4952调节塔顶注剂,确保塔顶酸性水中铁离子和氯离[4]钱伯章含硫原油加工工艺研究[冂·石油规划设计,2065子在控制指标之内,此外用有机胺代替氨水注入16(3):1-5挥发线内,可减少由于铵盐结晶引起的垢下腐蚀。(编辑寇岱清)Analysis of Corrosion Causes of No. 4 Crude Distillation Unit and CountermeasuresLiu Fugiao, Wang GuogingSINOPEC Beying Yanshan Petrochemical Co, Ltd, Beijing 102503)bstract: The equipment corrosions in No. 4 crude distillation unit in Sinopec Beijing Yanshan Petrochemical Company areintroduced. The corrosions mainly occurred in the heat exchangers, water coolers and air coolers in the atmospheric toweroverhead and vacuum tower overhead. The investigation and analysis of the typical corrosions, crude oil properties and processosion prevention concluded that the corrosion was mainly caused by inadequate original design, selection of lower materials forequipment and piping in high -temperature services, incomplete corrosion protection measures for water coolers, insufficientcorrosion protection management, improper control of crude oils, poor process corrosion prevention performance and poor qualityof cooling water etc. Corresponding corrosion protection measures were recommended to solve these problems such as control ofcrude oil properties, upgrading of materials for equipment and piping, improvement of process corrosion prevention, improvementof cooling water quality and application of effective corrosion protection measures for water coolersKeywords: corrosion, equipment, distillation, analysis国内外动态河南煤化煤制乙二醇产出合格产品二醇装置。新乡煤制乙二醇项目采用世界首创生产技术,012年3月29日河南煤化集团和通辽金煤化工合拥有自主知识产权总投资26×10°RMB￥,是河南省“十资建设的河南新乡永金化工年产200k煤制乙二醇装置五”规划建设的5套年产200kt煤制乙二醇项目之成功产出合格产品,这是河南省首套打通全流程的煤制乙寇岱清摘自中国石油和化工网)