Device and Method for Calorimetrically Measuring Sorption Processes

摘要

The aim of the invention is to provide a commercially usable and inexpensive device and method with which a sorption enthalpy can be measured in a simple manner. This is achieved by a device for calorimetrically measuring sorption processes, comprising a sorption cell for receiving a sample, the sorption cell having a volume for filling with a sorption gas, and comprising a reference cell likewise for filing with the sorption gas. A measurement gas volume is arranged around the sorption cell for receiving a reference gas, and the reference cell is surrounded by a reference gas volume, which is likewise provided for receiving the reference gas. A gas connection is provided between the sorption cell and the reference cell in order to conduct sorption gas into the sorption cell and the reference cell such that a sorption reaction occurs with the sample in the sorption cell. Furthermore, a device is provided for measuring pressure differences between the measurement gas volume and the reference gas volume in order to carry out a calorimetric measurement of the sorption process on the sample in the sorption cell on the basis of a volume change of the reference gas in the measurement gas volume.

主权项

1. A device for calorimetrically measuring sorption processes with
a sorption cell for receiving a sample, wherein the sorption cell has a volume to be filled with a sorption gas, a reference cell to be filled with the sorption gas, a measurement gas volume, which is arranged around the sorption cell for receiving a reference gas and a reference gas volume also provided for receiving the reference gas, wherein the reference gas volume is arranged around the reference cell, wherein a gas connection is provided between the sorption cell and the reference cell in order to guide sorption gas into the sorption cell and the reference cell so that a sorption reaction with the sample results in the sorption cell, and wherein a device for measuring the pressure difference between the measurement gas volume and the reference gas volume is provided in order to perform a calorimetric measurement of the sorption process on the sample in the sorption cell from a volume change in the reference gas in the measurement gas volume.