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Title: Thermodynamic analysis of interactions between Ni-based solid oxide fuel cells (SOFC) anodes and trace species in a survey of coal syngas

Abstract

A thermodynamic analysis was conducted to characterize the effects of trace contaminants in syngas derived from coal gasification on solid oxide fuel cell (SOFC) anode material. The effluents from 15 different gasification facilities were considered to assess the impact of fuel composition on anode susceptibility to contamination. For each syngas case, the study considers the magnitude of contaminant exposure resulting from operation of a warm gas cleanup unit at two different temperatures and operation of a nickel-based SOFC at three different temperatures. Contaminant elements arsenic (As), phosphorous (P), and antimony (Sb) are predicted to be present in warm gas cleanup effluent and will interact with the nickel (Ni) components of a SOFC anode. Phosphorous is the trace element found in the largest concentration of the three contaminants and is potentially the most detrimental. Poisoning was found to depend on the composition of the syngas as well as system operating conditions. Results for all trace elements tended to show invariance with cleanup operating temperature, but results were sensitive to syngas bulk composition. Synthesis gas with high steam content tended to resist poisoning.

Authors:
; ; ;
Publication Date:
Research Org.:
National Energy Technology Lab. (NETL), Pittsburgh, PA, and Morgantown, WV (United States). In-house Research
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy (FE)
OSTI Identifier:
1015467
Report Number(s):
NETL-TPR-2880
Journal ID: ISSN 0378-7753; JPSODZ; TRN: US201111%%615
Resource Type:
Journal Article
Journal Name:
Journal of Power Sources
Additional Journal Information:
Journal Volume: 195; Journal Issue: 16; Journal ID: ISSN 0378-7753
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; ANODES; ANTIMONY; ARSENIC; COAL; COAL GASIFICATION; CONTAMINATION; ELEMENTS; GASIFICATION; NICKEL; POISONING; SOLID OXIDE FUEL CELLS; STEAM; SYNTHESIS GAS; THERMODYNAMICS; TRACE AMOUNTS; Solid oxide fuel cells; Gasification; Contaminants; Anodes; Thermodynamic analysis; Trace elements

Citation Formats

Martinez, Andrew, Gerdes, Kirk, Gemmen, Randall, and Postona, James. Thermodynamic analysis of interactions between Ni-based solid oxide fuel cells (SOFC) anodes and trace species in a survey of coal syngas. United States: N. p., 2010. Web. doi:10.1016/j.jpowsour.2010.03.046.
Martinez, Andrew, Gerdes, Kirk, Gemmen, Randall, & Postona, James. Thermodynamic analysis of interactions between Ni-based solid oxide fuel cells (SOFC) anodes and trace species in a survey of coal syngas. United States. https://doi.org/10.1016/j.jpowsour.2010.03.046
Martinez, Andrew, Gerdes, Kirk, Gemmen, Randall, and Postona, James. 2010. "Thermodynamic analysis of interactions between Ni-based solid oxide fuel cells (SOFC) anodes and trace species in a survey of coal syngas". United States. https://doi.org/10.1016/j.jpowsour.2010.03.046.
@article{osti_1015467,
title = {Thermodynamic analysis of interactions between Ni-based solid oxide fuel cells (SOFC) anodes and trace species in a survey of coal syngas},
author = {Martinez, Andrew and Gerdes, Kirk and Gemmen, Randall and Postona, James},
abstractNote = {A thermodynamic analysis was conducted to characterize the effects of trace contaminants in syngas derived from coal gasification on solid oxide fuel cell (SOFC) anode material. The effluents from 15 different gasification facilities were considered to assess the impact of fuel composition on anode susceptibility to contamination. For each syngas case, the study considers the magnitude of contaminant exposure resulting from operation of a warm gas cleanup unit at two different temperatures and operation of a nickel-based SOFC at three different temperatures. Contaminant elements arsenic (As), phosphorous (P), and antimony (Sb) are predicted to be present in warm gas cleanup effluent and will interact with the nickel (Ni) components of a SOFC anode. Phosphorous is the trace element found in the largest concentration of the three contaminants and is potentially the most detrimental. Poisoning was found to depend on the composition of the syngas as well as system operating conditions. Results for all trace elements tended to show invariance with cleanup operating temperature, but results were sensitive to syngas bulk composition. Synthesis gas with high steam content tended to resist poisoning.},
doi = {10.1016/j.jpowsour.2010.03.046},
url = {https://www.osti.gov/biblio/1015467}, journal = {Journal of Power Sources},
issn = {0378-7753},
number = 16,
volume = 195,
place = {United States},
year = {Sat Mar 20 00:00:00 EDT 2010},
month = {Sat Mar 20 00:00:00 EDT 2010}
}