Apparatus for the recovery and storage of carbon in the form of liquid carbon dioxide from substances of the group hydrocarbons/ethers/alcohols, comprising - at least one steam generator for the evaporation of water and of a substance of the group hydrocarbons/ethers/alcohols, - at least one membrane reactor for catalytic steam reforming of a substance of the group hydrocarbons/ethers/alcohols and for separating hydrogen gas from the product gas generated by the steam reforming, - at least one device for condensing out carbon dioxide from a gas mixture containing carbon dioxide, - at least one storage tank for carbon dioxide, - at least one device for the oxidation of hydrogen gas, selected from the group of internal combustion engines or from the group of fuel cell systems, characterised in that - the steam generator is designed to generate steam of more than 5.18 bar, and the membrane reactor , the device for condensing out carbon dioxide and the storage tank for carbon dioxide can be operated with gas pressures of more than 5.18 bar, - the steam generator for vaporizing water and a substance of the group hydrocarbons/ethers/alcohols has an inlet device for supplying heat and contains at least one recuperator, - the device for oxidation of hydrogen gas can be operated at a temperature which is above the operating temperature of the steam generator , - the device for condensing out carbon dioxide has a recuperator, and that there are the following lines between the said devices: - at least one line for transporting gas at a pressure above 5.18 bar, connecting the steam generator , the membrane reactor with the device for condensing out carbon dioxide, - at least one line for transporting a liquid medium with a pressure of more than 5.18 bar, connecting the device for condensing out carbon dioxide with the storage tank for carbon dioxide, - at least one line which connects the membrane reactor with the device for the oxidation of hydrogen gas and which can be used for feeding a hydrogen-containing gas into the device for the oxidation of hydrogen gas. - at least one steam generator for the evaporation of water and of a substance of the group hydrocarbons/ethers/alcohols, - at least one membrane reactor for catalytic steam reforming of a substance of the group hydrocarbons/ethers/alcohols and for separating hydrogen gas from the product gas generated by the steam reforming, - at least one device for condensing out carbon dioxide from a gas mixture containing carbon dioxide, - at least one storage tank for carbon dioxide, - at least one device for the oxidation of hydrogen gas, selected from the group of internal combustion engines or from the group of fuel cell systems, - the steam generator is designed to generate steam of more than 5.18 bar, and the membrane reactor , the device for condensing out carbon dioxide and the storage tank for carbon dioxide can be operated with gas pressures of more than 5.18 bar, - the steam generator for vaporizing water and a substance of the group hydrocarbons/ethers/alcohols has an inlet device for supplying heat and contains at least one recuperator, - the device for oxidation of hydrogen gas can be operated at a temperature which is above the operating temperature of the steam generator , - the device for condensing out carbon dioxide has a recuperator, - at least one line for transporting gas at a pressure above 5.18 bar, connecting the steam generator , the membrane reactor with the device for condensing out carbon dioxide, - at least one line for transporting a liquid medium with a pressure of more than 5.18 bar, connecting the device for condensing out carbon dioxide with the storage tank for carbon dioxide, - at least one line which connects the membrane reactor with the device for the oxidation of hydrogen gas and which can be used for feeding a hydrogen-containing gas into the device for the oxidation of hydrogen gas. <EOS>