(EP986832-A1)      An electrolytic reactor consists of an anode compartment and a cathode compartment separated by a zeolite membrane. The anode compartment contains a first compound in fluid form and the cathode compartment contains a second compound in fluid form. An electric current is able to flow through the first and second compounds, causing a chemical change in the first and/or the second compound.    Also claimed is a fuel cell as above in which the first compound is an organic fuel and liquid water, or an organic fuel and water vapour.    USE -   Useful for performing a chemical reaction by electrical means, especially in the form of a fuel cell.    ADVANTAGE -   The use of a zeolite membrane allows the passage of water molecules without permitting passage of organic molecules. It is thus possible to prevent the harmful escape of harmful vapours to the air. The electrolytic reactor may be a rechargeable fuel cell.    (CN1255248-A)      An electrolytic reactor consists of an anode compartment and a cathode compartment separated by a zeolite membrane. The anode compartment contains a first compound in fluid form and the cathode compartment contains a second compound in fluid form. An electric current is able to flow through the first and second compounds, causing a chemical change in the first and/or the second compound.    Also claimed is a fuel cell as above in which the first compound is an organic fuel and liquid water, or an organic fuel and water vapour.    USE -   Useful for performing a chemical reaction by electrical means, especially in the form of a fuel cell.    ADVANTAGE -   The use of a zeolite membrane allows the passage of water molecules without permitting passage of organic molecules. It is thus possible to prevent the harmful escape of harmful vapours to the air. The electrolytic reactor may be a rechargeable fuel cell.    (KR2001012525-A)      An electrolytic reactor consists of an anode compartment and a cathode compartment separated by a zeolite membrane. The anode compartment contains a first compound in fluid form and the cathode compartment contains a second compound in fluid form. An electric current is able to flow through the first and second compounds, causing a chemical change in the first and/or the second compound.    Also claimed is a fuel cell as above in which the first compound is an organic fuel and liquid water, or an organic fuel and water vapour.    USE -   Useful for performing a chemical reaction by electrical means, especially in the form of a fuel cell.    ADVANTAGE -   The use of a zeolite membrane allows the passage of water molecules without permitting passage of organic molecules. It is thus possible to prevent the harmful escape of harmful vapours to the air. The electrolytic reactor may be a rechargeable fuel cell.