High-efficiency biomass gasifier SOFC systems with direct internal tar reforming

Journal article (2019)

Authors

A. Cavalli Energy Technology - Mechanical, Maritime and Materials Engineering
A. Aravind Energy Technology - Mechanical, Maritime and Materials Engineering
Research Group
Energy Technology (Mechanical, Maritime and Materials Engineering) (TU Delft)
Copyright: © 2019 A. Cavalli, P.V. Aravind
DOI: https://doi.org/10.1149/09101.0781ecst
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Published Date

2019

Language

English

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Faculty

Mechanical, Maritime and Materials Engineering

Department

Process and Energy

Research Group

Energy Technology

Abstract

Removing biosyngas contaminants is crucial for the efficient and safe operation of biomass gasifier solid oxide fuel cells systems. Among the contaminants, tar might be considered an additional fuel if converted into H2 and CO in a reformer or directly in the SOFC. However, no sufficient information is available on direct internal tar reforming. The knowledge gained during the 4-years project FlexiFuel-SOFC is presented. The aim of these studies was to determine the possibility to directly reform tar in the SOFC, and to assess the influence that other biosyngas contaminants (i.e., H2S and HCl) can have on the process. Benzene can be regarded as fuel, while naphthalene as a contaminant. Also toluene can be reformed inside the SOFC, but HCl seems to affect the process. Acetic acid is completely converted inside SOFCs and its conversion appears not affected by H2S. However, it causes carbon deposition, mainly in the inlet pipelines.

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