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INFLUENCE OF SELECTED O2/N2 SEPARATION PARAMETERS OF POLYMER MEMBRANE ON ENERGY CONSUMPTION OF THE PROCESS IN CASCADE SYSTEM WITH LACK OF GAS RECIRCULATION FOR APPLICATION IN OXY-COMBUSTION

G. Wiciak, K. Grzywnowicz, L. Remiorz
Thursday 11 October 2018 by Libadmin2018

ABSTRACT

In the paper, results of experimental research on parameters of ambient O2/N2 separation process, as well as their influence on energy consumption of the process are presented. On the basis of the experimental investigation, computational analysis of O2/N2 separation process of a membrane working in a cascade system with lack of gas recirculation is performed, concerning especially its applicability in oxy-combustion power technology and others.
The NM-BO2A polymer membrane by UBE is used for experimental phase of the research. Experiment is performed using varying feed pressure, up to 10.5 bar, as well as varying air feed flow. Results of the experiment are briefly discussed and basic characteristics of separation parameters and their influence on NM-BO2A module operation are presented. Furthermore, computational analysis of the system is performed and characteristics of the membrane module operation in a cascade with lack of gas recirculation are developed. In addition, the operational analysis of the system is performed and influence of selected maintenance parameters on i.e. number of stages in a cascade or total energy consumption of the system for application in oxy-combustion is indicated. The research focuses on identification of vital operational parameters affecting energy consumption for rational large scale use of presented solution.
The paper states part of research concerning verification of applicability of discussed membrane technology in industrial systems and power oxy-combustion units.

Keywords: oxy-combustion, membranes, gas separation, O2/N2 separation, energy consumption


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