New Orleans, Louisiana
June 26, 2016
June 26, 2016
August 28, 2016
'A Sophomore's Research and Current Practices of VOC Removal for a Student Poster-Paper Presentation'
I would like to present student-poster work at the ASEE 2016 Annual Conference. As a student in my sophomore year studying chemical engineering I have been exposed to and encouraged to read and explore current engineering topics. As a result, I aspire to do graduate research and subsequently pursue a graduate degree. At heart, I want to save the environment and at the graduate level I will have the opportunity to work with other engineers to help develop improved technologies to significantly reduce the negative environmental impact from industrial facilities.
After looking into current experiments and models that have been developed to reduce the volume of pernicious airborne pollutants, specifically volatile organic compounds (VOCs), I’ve begun researching what methods are currently in place as far as controlling VOC emissions, if they have been determined effective, and where can they be improved. Traditional VOC retrieval procedures are expensive and dependent on several variables, such as temperature, gas flow rate and pollutant concentration. Recently there has been new work done in a published article, “Physical absorption of volatile organic compounds by spraying emulsion in a spray tower: Experiments and modelling,” that examines the effectiveness of using a water/silicone oil emulsion to capture VOCs in spray towers.
In this experiment aqueous toluene was used as the pollutant and converted to a gas inside the spray tower. Silicone oil and tap water were used in the emulsion. The experiments were performed between 1 and 1.5 bars. Thermocouples measured the temperature ranging from 5 to 60 degrees centigrade. The efficiency of the experimental models used are dependent on temperature and molar gas flow rate. The absorption method was used to determine solubility and was calculated by the concentration of pollutant in the gas and the liquid phase. The absorption of pollutant is inversely proportional to gas flow rate. The information gathered supported the models, however, at times there were high errors, as much as 20%.
The system is efficient for the first two and a half hours with a controlled gas flow rate of 100 m3/h. The emulsion spray may be more cost effective, energy efficient, and overall, more effective at capturing the VOCs that are emitted if the gas flow rate can be controlled.
ASEE holds the copyright on this document. It may be read by the public free of charge. Authors may archive their work on personal websites or in institutional repositories with the following citation: © 2016 American Society for Engineering Education. Other scholars may excerpt or quote from these materials with the same citation. When excerpting or quoting from Conference Proceedings, authors should, in addition to noting the ASEE copyright, list all the original authors and their institutions and name the host city of the conference. - Last updated April 1, 2015