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Design of a 1 MWth pilot plant for chemical looping gasification of biogenic residues

Marx, Falko ; Dieringer, Paul ; Ströhle, Jochen ; Epple, Bernd (2021)
Design of a 1 MWth pilot plant for chemical looping gasification of biogenic residues.
In: Energies, 14 (9)
doi: 10.3390/en14092581
Article, Bibliographie

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Abstract

Chemical looping gasification (CLG) is a promising process for the thermochemical solid to liquid conversion route using lattice oxygen, provided by a solid oxygen carrier material, to produce a nitrogen free synthesis gas. Recent advances in lab-scale experiments show that CLG with biomass has the possibility to produce a carbon neutral synthesis gas. However, all experiments have been conducted in externally heated units, not enabling autothermal operation. In this study, the modification of an existing pilot plant for demonstrating autothermal operation of CLG is described. Energy and mass balances are calculated using a validated chemical looping combustion process model extended for biomass gasification. Based on six operational cases, adaptations of the pilot plant are designed and changes discussed. A reactor configuration using two circulating fluidized bed reactors with internal solid circulation in the air reactor is proposed and a suitable operating strategy devised. The resulting experimental unit enables a reasonable range of operational parameters within restrictions imposed from autothermal operation.

Item Type: Article
Erschienen: 2021
Creators: Marx, Falko ; Dieringer, Paul ; Ströhle, Jochen ; Epple, Bernd
Type of entry: Bibliographie
Title: Design of a 1 MWth pilot plant for chemical looping gasification of biogenic residues
Language: English
Date: 2021
Publisher: MDPI
Journal or Publication Title: Energies
Volume of the journal: 14
Issue Number: 9
DOI: 10.3390/en14092581
Corresponding Links:
Abstract:

Chemical looping gasification (CLG) is a promising process for the thermochemical solid to liquid conversion route using lattice oxygen, provided by a solid oxygen carrier material, to produce a nitrogen free synthesis gas. Recent advances in lab-scale experiments show that CLG with biomass has the possibility to produce a carbon neutral synthesis gas. However, all experiments have been conducted in externally heated units, not enabling autothermal operation. In this study, the modification of an existing pilot plant for demonstrating autothermal operation of CLG is described. Energy and mass balances are calculated using a validated chemical looping combustion process model extended for biomass gasification. Based on six operational cases, adaptations of the pilot plant are designed and changes discussed. A reactor configuration using two circulating fluidized bed reactors with internal solid circulation in the air reactor is proposed and a suitable operating strategy devised. The resulting experimental unit enables a reasonable range of operational parameters within restrictions imposed from autothermal operation.

Uncontrolled Keywords: chemical looping, biomass, gasification, fluidized bed, autothermal, pilot plant
Additional Information:

Artikel-ID: 2581

Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST)
TU-Projects: EC/H2020|817841|CLARA
Date Deposited: 07 Aug 2023 06:58
Last Modified: 01 Mar 2024 10:57
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