Experimental Investigation of the Apparant Rate Constant of Methane Hydrate Fromation in Presence of Low Concentrations of TBAC

Tetra n-butylammonium chloride (TBAC) is a semiclathrate former that noticeably promote the gas hydrate formation conditions. In this research, the effect of pressure on the apparent rate constant of methane hydrate formation in presence of low concentrations of TBAC (3 wt% and 5 wt%) is investigated. The tests were performed at a temperature of 278.15 K and pressures of 6.5 MPa and 8 mPa in a 169 cm3 stirred batch reactor. Our results show that by increasing the pressure from 6.5 MPa to 8 MPa the amount of apparent rate constant of methane + TBAC hydrate formation increases in both concentrations of TBAC.

Keywords:

Apparent rate constant , Semiclathrate hydrates , TBAC , Methane , Kinetic