Method and apparatus for producing hydrogen
AssigneeHiTES Holding GmbH
InventorDragan Stevanovic
Life of this patent
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Abstract
A method for converting carbonaceous raw materials and in particular biomass into hydrogen, includes the steps of: gasification of the carbon-containing raw materials in a gasifier, wherein heated water vapour is introduced into the gasifier and used for gasification; and cleaning of the hydrogen-containing synthesis gas produced in the gasification, wherein the gasification is an allothermal gasification and the heated water vapour is used both as gasification agent and as heat carrier for the gasification, wherein energy not used for H2 production is at least partially reused for the production and/or superheating of water vapour.
Claims29
A method for converting carbon-containing raw materials and in particular biomass into hydrogen, comprising the steps of:
- gasification of the carbon-containing raw materials in a gasifier, wherein heated water vapour is introduced into the gasifier and used for gasification;
- cleaning of the hydrogen-containing synthesis gas produced in the gasification, wherein the gasification is preferably an allothermal gasification and the heated water vapour is used both as gasification agent and as heat carrier for the gasification,
- wherein
- energy not used for the H2 generation is at least partially reused for the generation and/or overheating of water vapour and/or a variable characteristic of the conversion process is measured by at least two different measuring devices and the method is controlled by a control device taking this characteristic variable into account.
An apparatus for converting carbon-containing raw materials and in particular biomass into hydrogen, having a gasification device for gasifying the carbon-containing raw materials, having a supply device which introduces heated water vapour into the gasifier in order to use it for gasification, and having a cleaning device for cleaning the hydrogen-containing synthesis gas produced during the gasification, wherein the gasification is preferably an allothermal gasification and the heated water vapour is used both as a gasification agent and as a heat carrier for the gasification,
- wherein
- the apparatus has a recovery device in order to further use energy which is no longer usable for the H2 generation for the generation and overheating of water vapour and/or the apparatus has at least two different measuring devices which measure a variable characteristic of the conversion process and a control device controls the apparatus taking this characteristic variable into account.
A method of operating an apparatus for converting carbon-containing raw materials and in particular biomass into hydrogen, wherein in a working operation of the apparatus the following steps are performed:
- gasification of the carbon-containing raw materials in a gasifier, wherein heated water vapour is introduced into the gasifier and used for gasification;
- and
- cleaning of the hydrogen-containing synthesis gas produced in the gasification, wherein the gasification is preferably an allothermal gasification and the heated water vapour is used both as a gasification agent and as a heat carrier for the gasification,
- wherein
- in a cleaning operation of the apparatus, cleaning of components of the apparatus and in particular of at least the gasifier is carried out, wherein these components are cleaned with a flowable cleaning medium and in particular with water vapour as part of this cleaning.
A apparatus for converting carbon-containing raw materials and in particular biomass into hydrogen, having a gasification device for gasifying the carbon-containing raw materials, having a supply device which introduces heated water vapour into the gasifier in order to use it for gasification, and having a cleaning device for cleaning the hydrogen-containing synthesis gas produced during the gasification, wherein the gasification is preferably an allothermal gasification and preferably the heated water vapour is used both as gasification agent and as heat carrier for the gasification,
- wherein
- the apparatus is configured to enable a cleaning operation for cleaning components of the apparatus and in particular at least of the gasifier, wherein in the course of this cleaning operation these components can be cleaned with a flowable cleaning medium and in particular with water vapor.
Dependencies are inferred from the claim text.