Reply by Dr. Branscomb

Branscomb, Louise

doi:10.1016/0002-9378(60)90562-7

Cited by 2 publications

(1 citation statement)

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“…The properties, which are used as indicators of pitch quality, are: softening point, coking value, density, C/H ratio, quinoline insolubles (QI), toluene insolubles (TI), viscosity, and impurity content 1 . Most properties of pitch are interrelated 1,[7][8][9][10][11] and affect the properties of the anodes 1,7,8,[11][12][13][14][15][16] . Among these, coking value, viscosity/softening point, QI and density affect the anode quality most 1 .…”

Section: Introductionmentioning

confidence: 99%

Study of the Wettability of Coke by Different Pitches and Their Blends

Kocaefe

et al. 2016

Energy Fuels

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The properties of coal tar pitch, which is used as the binder material for carbon anode production, strongly affect the anode properties. Pitches have significant differences in their chemical compositions depending on their origin. In this study, four different coal tar pitches and their blends were studied with the aim of understanding the wettability of a calcined petroleum coke by pitch using the sessile-drop test. In this test, contact angle, which is an indication of wettability, is measured. Contact angles decrease with increasing time, and smaller contact angle means better wettability. The chemical properties of pitches and coke were studied using XPS to investigate their interactions, consequently, the wetting mechanism. The results showed that blending different pitches influences the wettability. The presence of acidic, basic, and heteroatom containing functional groups in pitch might cause acid-base/condensation reactions when they are blended, thus, influence the wetting behavior of the pitch blend.

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