Device for automatically and synchronously measuring adsorption quantity and adsorption heat of high-pressure gas and determination method

The invention discloses a device for automatically and synchronously measuring adsorption quantity and adsorption heat of high-pressure gas and a determination method. The device comprises a gas source sample system, a vacuum system, a synchronous adsorption quantity and adsorption heat measurement system and a data acquisition and automation control system. The determination method comprises thefollowing steps: determining a pressure change in the adsorption process by a high-precision pressure sensor in an equilibrium state, reaching adsorption equilibrium under constant temperature control, and combining a gas state equation to calculate the gas adsorption mole number or volume from an initial state to the equilibrium process; and outputting a dynamic curve changing along with time ina heat flux form by adopting a thermoelectric force difference of a multiple stereoscopic thermopile measurement reference cell and a sample cell, and combining a Clausius-Clapeyron equation to calculate the adsorption heat by