Co-carbonization of two anthracites with a fat coal or two pitches

Journal Article · Sat Apr 15 04:00:00 EDT 2006 · Energy Sources, Part A: Recovery Utilisation and Environmental Effects

DOI:https://doi.org/10.1080/009083190925419· OSTI ID:20752355

Shen, J; Wang, Z Z ^[1]

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1. Taiyuan University of Technology, Taiyuan (China). College of Chemical Engineering & Technology

The blends of two anthracite powders (YQ and JC) with a fat coal (C4) or a petroleum pitch (PP) or a coal tar pitch (CTP) in different proportions were co-carbonized at 3{sup o}C/min up to 1000{sup o}C in an experimental 1 kg coke oven. Coke yield, coke particulate size, coke micro-strength and coke cracking strength were measured respectively. Coke optical textures were watched under a microscope. The results show that as anthracite proportion increases, coke yields of all blends improve; > 0.8 mm lump coke yields of blends with CTP or PP decline slightly, blends with C4 drop heavily; coke microstrengths do not change sharply, and coke cracking strength of blends with C4 or PP decrease more than blends with CTP. C4 produces fine-grained mosaics, and two anthracites are mainly fusinite and fragments, PP is coarse-grained mosaics, and CTP is chiefly flow or domain textures. Independent optical textures were observed in cokes. There exist evident borders between the two contact optical textures which were produced by different components, and a few phenomena that domain or flow textures penetrating into fusinite appeared in the blends. It seems that CTP is the best adhesives for blending with anthracites for producing high quality cokes.

• OSTI ID: 20752355
• Journal Information: Energy Sources, Part A: Recovery Utilisation and Environmental Effects, Journal Name: Energy Sources, Part A: Recovery Utilisation and Environmental Effects Journal Issue: 6 Vol. 28; ISSN 1556-7036
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
ANTHRACITE
CARBONIZATION
COAL
COAL TAR
COKE
MECHANICAL PROPERTIES
MIXTURES
PETROLEUM PRODUCTS
PITCHES
TEXTURE
YIELDS