TY - JOUR
AU - Kaneko, Katsumi
AB - We revisit the quasi-equilibrium adsorption method as an inexpensive alternative to commercial volumetric apparatus for the measurement of gas adsorption isotherms. This method is based on how the pressure of a manifold containing the sample increases as a function of time when an adsorbing gas is introduced. We show that, under certain conditions, it is not necessary to employ ultra-low flow rates (i.e. below few cm3/h) to obtain reliable adsorption isotherms. Also, we show that by time-differentiating the mass balance equation, it is possible to obtain and measure directly the rates of adsorption. These new insights provide a low-cost and simple approach to the measurements of both adsorption equilibrium and rates.
TI - Measuring adsorption isotherms with a flowmeter and a pressure gauge
JF - Adsorption
DO - 10.1007/s10450-019-00068-8
DA - 2019-04-02
UR - https://www.deepdyve.com/lp/springer-journals/measuring-adsorption-isotherms-with-a-flowmeter-and-a-pressure-gauge-b9WW80VPlB
SP - 809
EP - 817
VL - 25
IS - 4
DP - DeepDyve
ER -