Measurement of Elemental Mercury Solubility in Natural Gas Dehydrating Solvents

2018 5th International Conference on Advanced Composite Materials and Manufacturing Engineering

Li, Jian^1 ; Zhao, Yunlong^2 ; Yan, Qituan^1 ; Duan, Yufeng^2 ; Wang, Shuying^1 ; Zhang, Xiang^2 ; Han, Zhongxi^1

Petrochina Research Institute of Petrolum Exploration and Development, Langfang

065007, China^1

School of Energy and Environment, Southeast University, Nanjing

210096, China^2

关键词: Cold-vapor atomic absorptions;    Environmental risk managements;    Increased temperature;    Mercury concentrations;    Mono ethylene glycols;    Natural gas processing;    Natural gas processing industry;    Prevention and controls;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/394/2/022060/pdf
DOI  :  10.1088/1757-899X/394/2/022060

来源: IOP

【 摘 要 】

Mercury pollution and emission from natural gas processing industry has gradually received worldwide concern. Basic data and references are important for pollution control and environmental risk management. For this purpose, the solubility and the dissolving characteristics of mercury in the natural gas dehydrating solvents (methanol, mono-ethylene glycol and tri-ethylene glycol in particular) were studied at a temperature range from 253K to 373K. The dissolution experiments were carried out in the dissolving kettle and mercury concentration was analyzed by cold-vapor atomic absorption technique (CVAAS). The experimental results indicated that the solubility of mercury in these solvents showed an increasing trend with increased temperature, whereas decreased with decreasing solvent concentration. The results would be useful for the research on the distribution of mercury in the natural gas processing and provide basis for the prevention and control of mercury pollution.