Carbonization and liquid-crystal (mesophase) development. 20. Co-carbonization of a high-volatile caking coal with several petroleum pitches

Grint, Alan; Marsh, H.

doi:10.1016/0016-2361(81)90114-9

Cited by 34 publications

(17 citation statements)

References 8 publications

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“…Little interaction occurs on co-carbonization of YQ anthracite with the other three matters, and a sharp boundary exists at the interface between the two components, no matter what proportion they are (Figures 16, 19, and 21). Marsh and colleagues (Ragan and Marsh, 1981;Grint and Marsh, 1981a, 1981b, 1981c had reported different modification ability of pitches addition to high-volatile weakly caking coal and low-volatile caking coals, but in these experiments, because most anthracite petrography are fusinite (Table 1), even if there are some vitrinites, they do not show much variation during carbonization, and it is very difficult for pitches to penetrate into anthracite to adhere to particles and produce a coal pitch solution, which appeared in the references Marsh, 1981a, 1981b).…”

Section: Observation Of Coke Optical Texturesmentioning

confidence: 97%

Co-Carbonization of Two Anthracites with a Fat Coal or Two Pitches

Shen¹,

Wang²

2006

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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Section: Observation Of Coke Optical Texturesmentioning

confidence: 97%

Co-Carbonization of Two Anthracites with a Fat Coal or Two Pitches

Shen¹,

Wang²

2006

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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“…Anisotropic and isotropic optical textures of cokes were assessed qualitatively using a Leitz polarized optical microscope ( 600) with a half-wave retarder plate to produce interference colors. The classification of optical textures followed Marsh's standard (Grint and Marsh, 1981b), which is shown in Table 3, and photos were taken of a typical border between different textures.…”

Section: Microscopy Observationmentioning

confidence: 99%

“…Many studies (Ragan and Marsh, 1981;Grint and Marsh, 1981a, 1981b, 1981cMochida J , 1985;Gonzalez-Cimas et al, 1987a, 1987b indicated that pitches were very effective when adding to low or medium rank bituminous coals for coking. In terms of their interaction with a high-volatile caking-coal, three groups of pitch were defined as passive, active, and super-active.…”

Section: Introductionmentioning

confidence: 98%

Co-carbonization of Two Weakly-caking Coals with a Fat Coal or Two Pitches

Shen

2012

Energy Sources, Part A: Recovery, Utilization, and Environmenta

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The blends of two weakly-caking coals (D1 and D2) with a fat coal or petroleum pitch or coal tar pitch in different proportions were co-carbonized at 3 ı C/min up to 1000 ı C in an experimental 1-Kg coke oven. Coke particulate size, micro-strength, and crushing strength were measured, respectively. Optical textures were watched under a polarized microscope. It was shown that, except for coke yield, blends with coal tar pitch had the best coke micro-strength, cracking strength, and >0.8 mm coke lump yield. Fat coal produced fine-grained mosaics, and weaklycaking coals were mainly fusinite and fragments. Petroleum pitch was coarse-grained mosaics, and coal tar pitch was chiefly flow or domain textures. Independent optical textures were observed in cokes. There existed evident borders between the two contact optical textures that were produced by different components, and a few phenomena that domain or flow textures penetrating into fusinite appeared in the blends. It seemed that coal tar pitch was the best for blending with weakly-caking coal for producing high quality cokes.

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“…In an examination of the co-carbonization of one coal with several industrially supplied petroleum pitches, Grint and Marsh (41) noted that the …”

Section: Co-carbonizations To Produce Cokes With Suitable Optical Texmentioning

confidence: 99%

Coal Carbonization: Formation, Properties and Relevance of Microstructures in Resultant Cokes

Marsh

1982

Coke Oven Techniques

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Carbonization and liquid-crystal (mesophase) development. 20. Co-carbonization of a high-volatile caking coal with several petroleum pitches

Cited by 34 publications

References 8 publications

Co-Carbonization of Two Anthracites with a Fat Coal or Two Pitches

Co-Carbonization of Two Anthracites with a Fat Coal or Two Pitches

Co-carbonization of Two Weakly-caking Coals with a Fat Coal or Two Pitches

Coal Carbonization: Formation, Properties and Relevance of Microstructures in Resultant Cokes

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