Device and method for the drying and torrefaction of at least one carbon-containing material flow in a multiple hearth furnace

US9102876B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9102876-B2
Application numberUS-201113390273-A
CountryUS
Kind codeB2
Filing dateJul 15, 2011
Priority dateJul 15, 2010
Publication dateAug 11, 2015
Grant dateAug 11, 2015

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

Official abstract text for this publication.

A device for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace includes a drying zone, a torrefaction zone, a heat exchanger for heating the drying gas flow, the discharge point of the drying zone being connected via the heat exchanger to the infeed point of the drying zone; and a combustion assembly, wherein the discharge point of the torrefaction zone is connected via the combustion assembly and the heat exchanger to the infeed point of the torrefaction zone, wherein a torrefaction gas flow discharged via the discharge point of the torrefaction zone is combusted in the combustion assembly and the resulting exhaust gas is used in the heat exchanger to heat the drying gas flow and is fed to the torrefaction zone, wherein the drying zone and the torrefaction zone comprise two separate gas circulations.

First claim

Opening claim text (preview).

The invention claimed is: 1. A device for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace, comprising a. a drying zone receiving a carbon-containing material flow, a discharge point for discharging a drying gas flow containing water vapour and an infeed point for recycling at least a part of the drying gas flow, b. a torrefaction zone for degassing the material flow dried in the drying zone, which comprises a discharge point f…

Assignees

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Classifications

  • Mechanical Engineering · mapped topic

  • Mechanical Engineering · mapped topic

  • Chemistry & Metallurgy · mapped topic

  • Cross-Sectional Technologies · mapped topic

  • Mechanical Engineering · mapped topic

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What does patent US9102876B2 cover?
A device for drying and torrefaction of at least one carbon-containing material flow in a multiple-hearth furnace includes a drying zone, a torrefaction zone, a heat exchanger for heating the drying gas flow, the discharge point of the drying zone being connected via the heat exchanger to the infeed point of the drying zone; and a combustion assembly, wherein the discharge point of the torrefac…
Who is the assignee on this patent?
Lampe Karl, Denker Jürgen, Beyer Christoph, and 2 more
What technology area does this patent fall under?
Primary CPC classification C10B49/02. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Aug 11 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).