炼油厂碱渣预处理CBAF工艺参数研究  

Study on CBAF Process Parameters of Alkali Residue Pretreatment in Refinery

作　　者：张启蒙[1] 姚培[1] 刘媛[1] 李树白[1] 夏守鑫 王祥龙 ZHANG Qimeng;YAO Pei;LIU Yuan;LI Shubai;XIA Shouxin;WANG Xianglong(Changzhou Vocational Institute of Engineering,Changzhou 213164,China)

机构地区：[1]常州工程职业技术学院

出　　处：《化工技术与开发》2019年第10期43-47,共5页Technology & Development of Chemical Industry

基　　金：江苏省高等职业教育高水平骨干专业建设项目(苏高教[2017]17号文,第80号);江苏省高职院校青年教师企业实践培训资助项目(2019QYSJ011);2019年江苏省大学生创新创业项目;常州工程职业技术学院校级科技创新团队建设成果

摘　　要：CBAF工艺装置的关键参数主要是水力停留时间、曝气量、碱渣进水浓度、反冲洗周期、进水pH值等。本文对这些工艺参数在CBAF工艺中对碱渣处理效果的影响进行研究,在现有的处理条件下,得出最终工艺条件为:气水比为48∶1,总停留时间为13.5h,稀释比约为11∶1。在该条件下,CBAF工艺能稳定、高效地净化该碱渣废水。Hydraulic retention time, aeration rate, inflow concentratin of alkali residue, back wash cycle, outflow pH .etc. were key parameters of CBAF process unit. In this paper, the effects of these process parameters on alkali residue treatment in CBAF process were optimized, the final process conditions under the existing treatment were: the gas-water ratio was 48:1, the total residence time was 13.5 h, dilution ratio was 11:1. Under these conditions, CBAF process could purify the alkali residue wastewater stably and efficiently.

关 键 词：炼油厂 碱渣 水力停留时间 稀释比 气水比 CODCR 硫化物 

分 类 号：X742[环境科学与工程—环境工程]