Petroleum Science >2009,??Issue 2:??188-193 DOI: https://doi.org/10.1007/s12182-009-0030-z
Experimental study of separation of ammonia synthesis vent gas by hydrate formation Open?Access
文章信息
作者：Taibin Dong, Leiyan Wang, Aixian Liu, Xuqiang Guo, Qinglan Ma, Guowen Li & Qiang Sun
作者单位：
投稿时间：08 May 2009
引用方式：Dong, T., Wang, L., Liu, A. et al. Experimental study of separation of ammonia synthesis vent gas by hydrate formation. Pet. Sci. 6, 188–193 (2009). https://doi.org/10.1007/s12182-009-0030-z
文章摘要
Termodynamic data on methane hydrate formation in the presence of ammonia are very important for upgrading of ammonia synthesis vent gas using hydrate formation. This paper is focused on the formation conditions of methane hydrate in the presence of ammonia and the effects of gas-liquid ratio and temperature on the separation of vent gas by hydrate formation. Equilibrium data for methane hydrate within an ammonia mole concentration range from 1% to 5 % were obtained. The experimental results indicated that ammonia has an inhibitive effect on hydrate formation. The higher the ammonia concentration, the higher is the pressure reguired for methane hydrate formation would be. The primary experimental results showed that when volume ratio of gas to liquid was 80:1 and temperature was 283.15 K, total mole fraction of (H2+N2) in gas phase could reach 96.9 %.
关键词
-
CH4 hydrate; ammonia; THF; thermodynamics; separation