Evaluation of Tetraethylammonium Chloride on Methane Gas Hydrate Phase Conditions

International Conference on Process Engineering and Advanced Materials 2018

Kassim, Z.^1,2 ; Khan, M.S.^1 ; Lal, B.^1 ; Partoon, B.^1 ; Shariff, A.M.^1

Research Centre for CO2 Capture (RCCO2C), Chemical Engineering Department, Universiti Teknologi PETRONAS, Bandar Seri Iskandar, Perak

32610, Malaysia^1

PETRONAS Research Sdn Bhd, Kawasan Institusi Bangi, Selangor, Kajang

43000, Malaysia^2

关键词: Clausius-Clapeyron equations;    Enthalpy of dissociation;    Hydrate equilibria;    Liquid vapor equilibrium;    Methane gas hydrates;    System measurement;    Temperature cycles;    Tetraethylammonium;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/458/1/012071/pdf
DOI  :  10.1088/1757-899X/458/1/012071

来源: IOP

【 摘 要 】

In this work, hydrate liquid vapor equilibrium conditions for methane (CH4) gas is measured in the absence and presence of different aqueous TEACl concentrations. The temperature cycle (T-cycle) method has been used for the hydrate equilibrium temperature of CH4 + H2O + TEACl system measurement within the pressure ranges of 3.90 - 8.30 MPa. Results reveal that, for 10 wt% aqueous TEACl average of suppression temperature (ΔT) (inhibition effect) appeared of 0.9 K for CH4 hydrate. Additionally, the enthalpy of dissociation for methane gas hydrate with and without the present of inhibitor is calculated using Clausius-Clapeyron equation.