A flue gas moisture separation for the CCS systems using membrane condensation

Abstract

Currently, in connection with the use of combustion with only pure oxygen (oxyfuel), the issue of energy-efficient moisture separation from flue gases before the storage or the use of CO2 is being intensively studied. One of the theoretically and experimentally verified options for separation is the condensation of moisture in different types of condensation exchangers: tube, shower, membrane and plate. An experimental measuring setup consisting of a gas mixture generation and condenser measuring section was built to compare individual condenser concepts. The basis of the mixture generation section is a humidifier, which enables the preparation of an input mixture simulating flue gases. From water vapor and from air or CO2 with the required temperature and humidity. The mixture then flows through the measuring section with condensing surfaces. The whole measuring setup is equipped with instrumentation and allows obtaining data for verification and fitting of theoretical condensation models. The aim of this contribution is introducing the entire measurement concept of the experimental facility and reveal the compares of the obtained experimental data with the theory for the membrane condenser.