MEM-BRAIN Gas separation membranes for zero-emission fossil power plants
|Michael Czyperek 1, Petra Zapp 1, Henny J. Bouwmeester 2, Michael Modigell 3, Klaus V. Peinemann 4, Ingolf Voigt 5, Wilhelm A. Meulenberg 1, Lorenz Singheiser 1, Detlev Stoever 1|
1. Forschungszentrum Jülich, Institute for Energy Research (FZJ-IEF), Jülich 52425, Germany
The aim of the MEM-BRAIN project is the development and integration of gas separation membranes for zero-emission fossil power plants. This should be achieved by selective membranes with high permeability for CO2, O2 or H2, so that CO2 is reached with high purity in a readily condensable form.
The technical basis is provided by two Research Topics of the Alliance in the field of materials science, one developing ceramic membranes (RT 1), the other polymeric membranes (RT 2). Main scientific challenge is the development of membrane systems with high permeability, specific selectivity and long-term stability. In application these systems have to be included into power plants and an energy system which define additional boundary conditions.
Ceramic membranes operating at intermediate temperatures (≤ 400°C) are developed for H2/CO2 separation (pre-combustion process). These include microporous molecular sieving membranes, especially zeolite and sol-gel derived membranes. Dense ceramic mixed proton/electron conducting membranes are developed for operating temperatures above 800°C.
For O2/N2 separation (oxyfuel process and hydrogen production for pre-combustion process), dense ceramic mixed oxygen ion-electron conducting membranes are developed for working conditions at 800-1000°C. A demonstration-unit (Proof-of-concept) for testing O2/N2 separation membranes is designed and built up. The reference material is Ba0.5Sr0.5Co0.8Fe0.2O3-δ (BSCF).
Polymeric and organic/inorganic hybrid membranes are produced for the CO2/N2 separation (post-combustion process) at temperature ranges up to 200°C. Beside pure polymeric membranes new hybrid organic/inorganic membranes with inorganic molecular sieves will be prepared.
In RT 3 all power plant processes are modelled and their potential of using membranes for CO2 capture are analysed.
RT 4 is performing an assessment of specific technical, economic and environmental aspects of CO2 capture as a component of the whole CCS process chain.
Presentation: Poster at E-MRS Fall Meeting 2009, Symposium G, by Michael Czyperek
See On-line Journal of E-MRS Fall Meeting 2009
Submitted: 2009-07-16 14:35 Revised: 2009-07-16 15:28
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