Novel off-Gas Treatment Technology To Remove Volatile Organic Compounds   with High Concentration

doi:10.1021/acs.iecr.5b02662

CORC > 北京大学 > 城市与环境学院

	Novel off-Gas Treatment Technology To Remove Volatile Organic Compounds with High Concentration
	Sui, Hong ; Zhang, Tao ; Cui, Jixing ; Li, Xiqing ; Crittenden, John ; Li, Xingang ; He, Lin
刊名	INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
	2016
关键词	SOIL VAPOR EXTRACTION AIR STRIPPER CO2 CAPTURE STREAMS VOCS
DOI	10.1021/acs.iecr.5b02662
英文摘要	The triethylene glycol (TEG) was used to treat the off-gas stream containing 16 volatile organic compounds (VOCs) with high concentration (up to 15000 ppm) by experimental solvent absorption and ASPEN Plus computational simulation, respectively. This solvent absorption technology (SAT) not only purifies the off-gas but also recovers the VOCs. The effects of some typical operational parameters, including temperature, pressure, liquid loading rate, ratio of absorption liquid to gas flow rates, and absorption column height, on the absorption efficiency have been systematically investigated. Simulation results show that the optimal operational conditions are determined as 30 degrees C, 0.5 MPa (absolute), recycling TEG (with a purity of 99.9%) to a gas ratio of 4:1 by weight, and 8 theoretical stages. In addition, two stages of thermal coupling are applied minimizing the energy consumption of the off-gas absorption process, leading to a reduction of 89.77% in energy consumption. Laboratory experiments and field tests show that both VOCs absorption efficiency (using TEG as absorbent) and regeneration efficiency are highly consistent with those of ASPEN Plus simulation, suggesting the feasibility of simulation. Based on pilot-scale tests, the equipment investment and operational costs of SAT have been calculated and analyzed. Results show that the SAT is comparable with the traditional thermal treatment but with the advantages of much less secondary pollution. These findings indicate that the solvent absorption method is a promising green technology for treating high VOCs off-gas.; National Natural Science Foundation [41471258]; key technologies R&D program of Tianjin [14ZCDGSF00029]; International S&T Cooperation Program of China, ISTCP [2015DFR40910]; National HighTechnology Research and Development Program ("863"Program) of China [2013AA06A210]; Brook Byers Institute for Sustainable Systems, Hightower Chair; Georgia Research Alliance at the Georgia Institute of Technology; SCI(E); EI; ARTICLE; linhe@tju.edu.cn; 9; 2594-2603; 55
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/437552]
专题	城市与环境学院
推荐引用方式 GB/T 7714	Sui, Hong,Zhang, Tao,Cui, Jixing,et al. Novel off-Gas Treatment Technology To Remove Volatile Organic Compounds with High Concentration[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,2016.
APA	Sui, Hong.,Zhang, Tao.,Cui, Jixing.,Li, Xiqing.,Crittenden, John.,...&He, Lin.(2016).Novel off-Gas Treatment Technology To Remove Volatile Organic Compounds with High Concentration.INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH.
MLA	Sui, Hong,et al."Novel off-Gas Treatment Technology To Remove Volatile Organic Compounds with High Concentration".INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH (2016).