Carbon molecular sieve membrane prepared from hydroquinone and the method of manufacturing
AssigneeTechnische Universiteit Eindhoven
InventorsArash Rahimalimamaghani, Fausto Gallucci, David Alfredo Pacheco Tanaka, Margot Anabell Llosa Tanco
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Abstract
The present invention relates to a method for manufacturing a carbon membrane supported on a ceramic support. The present invention also relates to a carbon membrane prepared from hydroquinone on a ceramic tubular support and to the use of such a membrane. The present invention is focused on the preparation of carbon membranes from hydroquinone oligomer as a thermosetting precursor for gas separation. In an example chemical post treatment of membranes is used for increasing the H2/CO2, H2/N2 and CO2/N2 selectivities.
Claims16
A method for manufacturing a carbon membrane supported on a ceramic support from hydroquinone, the method comprising the steps of:
- a) synthesizing a precursor oligomer by condensing hydroquinone with formaldehyde in aqueous acidic media and heat;
- b) preparing a dipping solution in an organic solvent;
- c) coating a ceramic support via dip coating solution obtained in step b);
- d) drying and polymerizing a top layer of the coated ceramic support obtained in step c);
- e) carbonizing the polymerized construction obtained in step d);
- and
- f) post treating the carbonized construction obtained in step e).
Dependencies are inferred from the claim text.