Fusibility of ash from coals of the United States

Selvig, W.A.; Fieldner, A.C.

doi:10.1016/s0016-0032(22)90174-7

Cited by 8 publications

(9 citation statements)

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“…A composition range of slag samples was selected representing coal–petcoke slag mixtures (0–72 wt % petcoke on a carbon basis). The coal slag composition used in this study was based on a statistically averaged composition of over 300 U.S. coal samples reported by Selvig and Gibson . The chemistry of the petcoke slag was determined by averaging and normalizing data provided by Bryers and Swanson and Hajicek and represented various types of petcoke.…”

Section: Methodsmentioning

confidence: 99%

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions

et al. 2011

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Phase equilibria of the Al2O3–CaO–FeO–SiO2–V2O3 system in synthetic slag mixtures simulating coal–petcoke slag chemistry at 1500 °C in an oxygen partial pressure of 10–8 atm were investigated by a series of quench experiments. Quenched samples were analyzed by inductively coupled plasma optical emission spectrometry (ICP), X-ray diffractometry (XRD), transmission electron microscopy (TEM), and wavelength dispersive X-ray (WDX). Two precipitated crystal phases were identified in molten slags: mullite (3Al2O3·2SiO2) in Al2O3-rich slags and karelianite (V2O3) in V2O3-rich slags. Scanning electron microscopy and TEM diffraction patterns confirmed the presence of the mullite and karelianite phases. On the basis of experimental results, an isothermal phase diagram of the Al2O3–CaO–FeO–SiO2–V2O3 system at 1500 °C and P O2 = 10–8 atm is proposed while keeping CaO = 7.0 wt % and FeO = 13.5 wt %.

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Section: Methodsmentioning

confidence: 99%

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions

et al. 2011

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“…From a study of many analyses of coal ash, Selvig and Gibson (1956), p. 32) suggested typical limits for the principal constituents of the ash of bituminous coal in the United States (see table 4).…”

Section: Major Inorganic Constituentsmentioning

confidence: 99%

Geology of uranium in coaly carbonaceous rocks

Vine¹

1962

Professional Paper

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“…Coal ash chemistry and its properties were published in a report from U.S. Bureau of Mines in 1956. 11 This report contained an analysis of over 300 coal samples from different states, and the results are summarized in Table III. The average, range, and standard deviation of coal slag chemistry and ash fusion test temperatures are listed.…”

Section: Slag Analysismentioning

confidence: 99%

Wear Mechanisms of Chromia Refractories in Slagging Gasifiers

Kwong

Petty

Bennett

et al. 2007

Int J Applied Ceramic Tech

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The hot‐face refractory lining is a key component of gasification systems. The refractory liner protects the gasification system from the high‐temperature corrosive gaseous and from the molten slag environment associated with the conversion of carbon feedstocks. This paper will discuss the effect of gasifier operating conditions and carbon feedstock slag/ash chemistry on the refractory service life. Particular attention is focused on the wear mechanism of chromia refractories, determined through postmortem analysis of spent refractory bricks from service in gasifiers. Also presented is the behavior of a phosphate‐containing chromia refractory with improved resistance to structural spalling.

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Fusibility of ash from coals of the United States

Cited by 8 publications

References 0 publications

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions

Geology of uranium in coaly carbonaceous rocks

Wear Mechanisms of Chromia Refractories in Slagging Gasifiers

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Fusibility of ash from coals of the United States

Cited by 8 publications

References 0 publications

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al2O3–CaO–FeO–SiO2–V2O3) under Simulated Gasification Conditions

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al2O3–CaO–FeO–SiO2–V2O3) under Simulated Gasification Conditions

Geology of uranium in coaly carbonaceous rocks

Wear Mechanisms of Chromia Refractories in Slagging Gasifiers

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Product

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Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions

Phase Equilibria in Synthetic Coal–Petcoke Slags (Al₂O₃–CaO–FeO–SiO₂–V₂O₃) under Simulated Gasification Conditions