Trace metal transformations in gasification

Benson, Steven A.; Erickson, T.A.; O`Keefe, C.A.; Katrinak, Karen A.; Allan, S.E.; Hassett, D.J.; Hauserman, W.B.; Zygarlicke, Christopher J.

doi:10.2172/125007

Cited by 10 publications

(11 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermodynamic equilibrium calculations have been performed by several researchers to predict the chemical nature and abundance of relevant trace impurity species as a function of temperature range expected in a coal gasification system [2,3,[13][14][15][16]. The exact identity of the species proceeding from the gasifier to the fuel cell depends on the starting coal composition, the gasifier design and the syngas cleanup technology used.…”

Section: Thermodynamic Equilibrium Calculationsmentioning

confidence: 99%

Effects of coal syngas impurities on anodes of solid oxide fuel cells

Cayan

Zhi

Pakalapati

et al. 2008

Journal of Power Sources

185

121

View full text Add to dashboard Cite

Section: Thermodynamic Equilibrium Calculationsmentioning

confidence: 99%

Effects of coal syngas impurities on anodes of solid oxide fuel cells

Cayan

Zhi

Pakalapati

et al. 2008

Journal of Power Sources

185

121

View full text Add to dashboard Cite

“…Some of these elements such as Cd and Hg are present as metal vapors whereas others can be present as chloride or hydride vapors (Pigeaud and Helble, 1994). Benson et al (1996), Helble et al (1996), and Diaz-Somonao and Martinez-Tarazona (2003) estimated the fate of trace element species in coal gasification systems using thermodynamic equilibrium calculations. In these studies, several trace elements including As, Be, Cr, Mn, Co, Ni, Se, Cd, Sb, Hg, Pb, Zn, V, and B were considered.…”

Section: Nature Of Trace Contaminants In Coal-derived Gasmentioning

confidence: 99%

Effect of Coal Contaminants on Solid Oxide Fuel System Performance and Service Life

Krishnan¹,

Jayaweera²,

Bao³

et al. 2008

View full text Add to dashboard Cite

“…It is been reported as one of the most volatile metal impurities in coal syngas. The typical size of these fractions is less than 0.45µm [43]. Cd vapor has been confirmed to affect the SOFC performance.…”

Section: Cadmium (Cd)mentioning

confidence: 88%

“…Like Cd, Zn is also in condensed particle form in coal syngas [43]. Some data shows Zn vapor will be carried over the SOFC anode and not deposit.…”

Section: Zinc (Zn)mentioning

confidence: 99%

Electrochemical and Microstructural Analysis of Solid Oxide Fuel Cell Electrodes

Zhi¹

View full text Add to dashboard Cite

Electrochemical and Microstructural Analysis of Solid Oxide Fuel Cell Electrodes Mingjia Zhi Fuel cells offer several advantages over conventional routines of power generation, such as substantially higher conversion efficiency, modular construction, minimal sitting restriction, and much lower production of pollutants. Solid oxide fuel cell (SOFC), in principle, can utilize all kinds of combustion fuels including coal derived syngas (CSG). The U.S. Department of Energy is currently working on coupling coal gasification and SOFC to form Integrated Gasification Fuel Cell (IGFC) systems. Such IGFC systems will enable the clean, efficient and cost-effective use of coal-the nation's most abundant fossil fuel. However several issues need to be considered before SOFC can be really commercialized. The anode of SOFC can interact with the trace impurities in CSG such as arsenic, phosphorous, chlorine etc, which leads severe degradation of the cell performance. The operation temperature of current SOFC is also high (>800 o C), which increases the system cost. Hence, further study of both the anode and cathode is necessary in order to develop high performance, long serving time SOFC for IGFC power plant. One of the aims of this project is to investigate the degradation mechanisms of the Ni-YSZ (yttria stabilized zirconia) anode in PH 3 contained coal syngas. Materials microstructure change and electrochemical performance degradation were studied synchronously.

show abstract

Trace metal transformations in gasification

Cited by 10 publications

References 1 publication

Effects of coal syngas impurities on anodes of solid oxide fuel cells

Effects of coal syngas impurities on anodes of solid oxide fuel cells

Effect of Coal Contaminants on Solid Oxide Fuel System Performance and Service Life

Electrochemical and Microstructural Analysis of Solid Oxide Fuel Cell Electrodes

Contact Info

Product

Resources

About