US 9,957,444 B2Granted

Apparatus for pyrolysing carbonaceous material

AssigneeRenergi Pty Ltd

InventorsChun-Zhu Li, Richard Gunawan, Li Dong

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Abstract

An apparatus for pyrolyzing a carbonaceous material and producing char and volatiles includes a vessel having an inlet for the carbonaceous material, an outlet for the char and the volatiles, and a first pathway therebetween. The vessel has wall portions with interior surfaces that define the first pathway. Further, the vessel has a heat exchange medium inlet, outlet and a second pathway therebetween. The first and second pathways are in heat exchange proximity to each other and the second pathway is defined by interior surfaces of the, or other, wall interior portions of the vessel. At least some of the interior wall portions of the vessel project into an interior space of the vessel such that at least one of the first and second pathways is non-linear.

Claims28

Dependent claims

An apparatus for pyrolyzing a carbonaceous material that includes biomass to produce char and volatiles, the apparatus comprising:

a vessel having an inlet for the carbonaceous material, an outlet for the char and the volatiles and a first pathway therebetween, the vessel further having a heat exchange medium inlet, a heat exchange medium outlet and a second pathway therebetween, the first and second pathways being in heat exchange proximity to each other;
an agitator rotatably supported within the vessel for passing carbonaceous material, the produced char and the volatiles through the first pathway, the agitator comprising a rotatable shaft and a plurality of paddles spaced apart from each other along the shaft;
the vessel further comprising an interior wall disposed within an interior space of the vessel and dividing the interior space into the first pathway and the second pathway, the interior wall having interior wall portions projecting between the paddles of the agitator such that the first and second pathways are non-linear and the second pathway is corrugated, wherein the first pathway is disposed between the agitator and the interior wall, and a heat transfer surface area is increased compared to linear first and second pathways.

An apparatus for pyrolysing a carbonaceous material and producing char and volatiles, the carbonaceous material including biomass, the apparatus comprising

a vessel including:
(a) an inlet for the carbonaceous material, an outlet for the char and the volatiles, and a first pathway therebetween;
and (b) a heat exchange medium inlet, a heat exchange medium outlet, and a second pathway therebetween;
and
an agitator rotatably supported within the vessel for passing carbonaceous material, the produced char and the volatiles through the first pathway, the agitator comprising a rotatable shaft and a plurality of paddles spaced apart from each other along the shaft;
the vessel further comprising a plurality of baffles, each baffle projecting into an interior space of the vessel between paddles;
the vessel further comprising an interior wall disposed in the interior space between the paddles and the baffles in a corrugated manner so as to divide the interior space into the first pathway and the second pathway, wherein the first pathway is disposed between the agitator and the interior wall, and the second pathway is disposed between the interior wall and the baffles, such that the first and second pathways are non-linear and in heat exchange proximity to each other.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/102,743Filed 16 Dec 2014
Priority: AU 201390491316 Dec 2013
Published: US 2016/0312124 A127 Oct 2016
Granted: 1 May 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

C10B 47/32
Other processes: in ovens with mechanical conveying means
C10B 5/20
With heat-exchange devices: with recuperators
C10B 51/00
Destructive distillation of solid carbonaceous materials by combined direct and indirect heating
C10B 53/02
Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form: of cellulose-containing…