Title:
METHOD AND DEVICE FOR ISOTHERMAL PYROLYSIS USING AUTOTHERMIC PARTIAL GASIFICATION
Document Type and Number:
WIPO Patent Application WO/2010/089031
Kind Code:
A3
Abstract:
The invention relates to a method for pyrolysis of carbonaceous raw materials. The aim of the invention is process optimization for isothermally performing the pyrolysis with autothermic partial gasification. The aim is achieved by a method comprising mixing heat exchange particles (25) having a mean temperature T2 and pyrolysis material (21); drying the pyrolysis material, wherein the heat exchange particles and the pyrolysis material cool down to a mean pyrolysis temperature T1, wherein T1 is less than T2; isothermally disintegrating the pyrolysis material into solid, liquid, and gaseous pyrolysis products (29, 34) and exhausting the gaseous pyrolysis products at a pyrolysis temperature T1 +/- 10°C, wherein the heat exchange particles are made of hollow bodies filled with a filler material and the filler material undergoes a phase change at T1; partially oxidizing the liquid and solid pyrolysis products under controlled addition of an oxidizing agent (31), wherein heat exchange particles and liquid and solid pyrolysis products heat up to a mean temperature greater than or equal to T2; and separating the heat exchange particles from the pyrolysis products and recirculating (36) the heat exchange particles to the mixture.
Inventors:
SEIFERT HELMUT (DE)
WEDDIGEN ANDREAS (DE)
HORNUNG ANDREAS (DE)
WEDDIGEN ANDREAS (DE)
HORNUNG ANDREAS (DE)
Application Number:
PCT/EP2010/000363
Publication Date:
October 21, 2010
Filing Date:
January 22, 2010
Export Citation:
Assignee:
KARLSRUHER INST TECHNOLOGIE (DE)
SEIFERT HELMUT (DE)
WEDDIGEN ANDREAS (DE)
HORNUNG ANDREAS (DE)
SEIFERT HELMUT (DE)
WEDDIGEN ANDREAS (DE)
HORNUNG ANDREAS (DE)
International Classes:
C10B49/16; C10B53/02; C09K5/06; F28C3/10
Foreign References:
| DE102005037917A1 | 2007-02-15 | |||
| US4056461A | 1977-11-01 | |||
| DE4309283A1 | 1994-09-29 |
Other References:
CUMMER K ET AL: "Indirectly heated biomass gasification using a latent-heat ballast-part 3: refinement of the heat transfer model", BIOMASS AND BIOENERGY, PERGAMON, OXFORD, GB, vol. 28, no. 3, 1 March 2005 (2005-03-01), pages 321 - 330, XP025351497, ISSN: 0961-9534, [retrieved on 20050301]
Attorney, Agent or Firm:
KARLSRUHER INSTITUT FÜR TECHNOLOGIE (Postfach 36 40, Karlsruhe, DE)
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