Process and device for converting biomass to gaseous products

a technology of biomass and gaseous products, which is applied in the direction of molten salt/metal gasification, supercritical condition processes, sludge treatment by oxidation, etc., can solve the problems of unfavorable ratio between suspended biomass and supercritical heating water, slow process, and clogging up the reactor, so as to achieve efficient sorption and increase the reactivity of biomass
US20090308726A1Inactive Publication Date: 2009-12-17KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
KERNFORSCHUNGSZENTRUM KARLSRUHE GMBH
Publication Date
2009-12-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

A device for converting biomass with a water content of at least 50% to gaseous products includes a reactor filled at least partially with a packing including at least one filler body for accommodating supercritical water and a hydrothermal molten salt. A heater is arranged to heat up the reactor and its content. A first feeding pipe is coupled to the reactor to feed water and salt solution into the reactor. A second feeding pipe is coupled to the reactor to feed to biomass into the reactor. A discharge pipe is coupled to the reactor to discharge gaseous products from the reactor. An outlet is proved in the bottom of the reactor for removing portions of the molten salt.
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Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application claims the priority of the German Patent Application No.: 10 2008 028 788.1, filed on Jun. 17, 2008, the subject matter of which is incorporated herein by reference.BACKGROUND OF THE INVENTION

[0002] The invention relates to a process and a device for converting wet biomass, meaning biomass having a water content of at least 50%, into gaseous products.

[0003] For generating energy from wet biomass through thermolysis or thermal decomposition, supercritical water is often used at temperatures and pressures exceeding the critical point of the water (22.1 MPa and 375° C.). Whereas organic substances are dissolved easily in supercritical water, the inorganic salts precipitate out and can result in clogging up the reactor.

[0004] A lean reactor is known from the document by N. Boukis, U. Galla, V. Diem, E. Dinjus, entitled Biomass gasification in supercritical water: First results of the pilot plant, published in: A. V. Bridgewater, ...

Claims

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