The Recycling Of The Liquid Absorption Research Of Organic Waste Gas

With the improvement of living standard,people's life environment is more and more attention,the emissions of volatile organic waste gas by companies as a important source of atmospheric pollution and its influence on human living environment is becoming more and more attention.At present,the management of organic waste gas still lacks effective technology.This research are developing recycling of organic waste gas liquid absorption technology research,through data collection and laboratory simulation,build new absorption system and corresponding process conditions,provide the corresponding theoretical basis for the application of later industrialization.This study focuses on water treatment unit of sewage treatment plant in petrochemical enterprises,sewage treatment plant of fushun two factory as an example,the volatile organic compounds from separation tank,flotation cell,aeration tank,such as processing unit,volatile organic compounds composition is complicated,but mainly for hydrocarbon and substances such as ammonia nitrogen,this study material in light hydrocarbon is hexane as the main research object,explore the absorption system of linear light hydrocarbon class material absorption efficiency.This paper use design and simulate the dynamics of organic waste gas absorption of processing equipment,in comparison of the single surfactant of n-hexane waste gas absorption effect,on the basis of surfactant compound,by surface active agent synergy and synergy between absorption efficiency,while increasing the mixed system of physical and chemical properties.By comparing water soluble and PEG with good results in increased soluble organic matter(200,300,400,300)Tween(20)80,after several kinds of nonionic surfactant selected PEG400 optimum absorber for distribution system,the removal rate of 59% of n-hexane.Selection and performance compared with other types of anionic surfactant is more excellent C12-by MADS as anionic surface activity,combined systems into after the determination of optimal distribution of two kinds of surfactant systems for PEG400 / C12-by MADS = 1/8(mole ratio).The complex system is dominated by anionic surfactants,and the addition of non-ionic surfactants has effectively promoted the defects of C12-MADS against hard water,from 20 g/100 g to 26 g/100 g.In the same condition,the saturated absorption capacity of the single surfactant increased by about 25ug/ml,and the effective absorption increased by 10ug/ml.Moreover,the optimum concentration of air intake in the process is 1200 mg/m3,which provides a theoretical basis for future industrial extension.At this time,the removal rate of n-hexane was 82.3%,which was about 12% higher than that of single C12-MADS.In the end,the recovery of n-hexane was recovered by distillation.After distillation,the recovery rate was up to 93.7%,and the surfactant in solution was stable and could be reused.