测定气体水合物相平衡数据的高压PVT装置

Measurement of Gas Hydrate Equilibrium Data with High-pressure PVT Apparatus

建立了一套用于研究气体水合物的高压流体PVT(压力 -体积 -温度 )测试系统。分别利用低压和高压传感器在温度268～283.2K ,压力6～40.2kPa和4600～7200kPa范围内采用恒温试压法分别对1,1_dichloro_1_fluoroethane (1,1_二氯_1_氟乙烷 )和甲烷气体水合物相平衡点进行了测试 ;并将所得两组数据与文献值相比较。该装置温度、压力范围较宽 。

A new experimental apparatus for measuring gas hydrate formation conditions was set up. In the temperature range of 268～283.2 K, and the pressure ranges of 6～40.2 kPa and 4 600～7 200 kPa, the hydrate formation data for 1,1 _ dichloro _ 1 _ fluoroethane and methane were measured by two methods namely, pressure _ search method and graphic method. The data obtained were compared with the references to estimate veracity of the two methods and evaluate the application area of this apparatus.