Objective
Carbondioxide removal is an important unit operation in many processes of relevance for the chemical industry. Potential industrial applications of the gas separating membranes to be developed in the proposed project will cover a wide range of different fields. Examples are: carbondioxide separation from methane (natural gas sweetening, landfill gas treatment), carbondioxide/hydrogen separation (steam reforming of hydrocarbons), carbondioxide/nitrogen separation (flue gases, off gases from gas turbines), carbondioxide separation in life support systems (diving chambers, space crafts) and medical
applications ( separation from nitrous oxide or xenon in anaesthesia gas loops). The separation of carbondioxide from methane is the only application where larger membrane areas are already installed. Nevertheless, conventional absorption processes are still dominant in this area mainly because of the unsufficient selectivity of todays membranes. For other gas separations like the industrial relevant carbondioxide separation from hydrogen or nitrous oxide no membrane systems at all are installed on a technical scale because the separation effiency is much too poor.
The most promissing way to enhance the carbondioxide selectivity of membranes significantly is the introduction of specific carriers for carbondioxide (facilitated transport). It is well known that amines can react reversibly with carbondioxide. This reaction has been utilized earlier as a mobile carrier for carbondioxide through membranes. Although carbondioxide selectivities up to 600 have been obtained, these membrane have never been applied in technical applications because of their limited stability. In this project it is planned to develop membranes with covalently bound carriers. These covalently bound carriers especially primary and secondary amine groups can be much more effective in technical membranes than mobile carries. Such fixed site carrier membranes would show the mechanical stability characteristic of the known polymeric membranes and they might also exhibit the high selectivity of the liquid and gel membranes that can show facilitated transport. The central tasks of this project will be the development of amine functional polymers with high and reversible carbondioxide sorption capacity and the
preparation of composite membranes fom these polymers.
The objective is the development of novel membranes with very high selectivities for carbondioxide. The carbondioxide selectivity compared with gases like nitrogen, oxygen, methane, hydrogen, nitrous oxide and xenon should exceed 200. The fluxes to be achieved should be high enough to render the membrane process competetive with
conventional separation processes. The minimum carbondioxide flux to be aimed at is 0.1m3/m2 h bar. Selected polymers will also be testet to replace conventional adorbers in pressure swing adsorption and to replace sodalime in closed loop breathing systems. Theoretical modeling and process design will be another important part of this project. This is especially required because the mass transport through fixed carrier membranes is not well understood . A theoretical analysis of the critical parameters for reactive diffusion will help to taylor better polymers. With a successfully developed membrane the industrial opportunities will be very promissing. Even if only a small fraction of the more than 1 billion m3 in Europe annual produced carbondioxide/hydrogen mixture will be separated by membrane technology this would be a huge membrane application. The potential market in natural gas cleaning is even larger. Also the small scale applications are promissing which can be demonstrated for the case of carbondioxide separation from anaesthesia gas loops in hospitals. More than 63000 anaesthetic devices are in use in Europe, which in principle could all be equiped with membrane systems.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
- engineering and technology environmental engineering energy and fuels fossil energy natural gas
- engineering and technology chemical engineering separation technologies
- natural sciences chemical sciences organic chemistry aliphatic compounds
- natural sciences chemical sciences organic chemistry amines
- engineering and technology environmental engineering waste management waste treatment processes
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Multi-annual funding programmes that define the EU’s priorities for research and innovation.
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Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
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Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
21502 Geesthacht
Germany
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.