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Interaction between a coke and a tar. 2. Limit of tar penetration in coke porosity |
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| Authors: | Jacques Lahaye Jean-Paul Aubert Albert Buscailhon |
| Affiliation: | 1. Centre de Recherches sur la Physico-Chimie des Surfaces Solides, 24, avenue du Président Kennedy, 68200 Mulhouse, France;2. Société des Electrodes et Réfractaires de Savoie, Laboratoire du Graphite de Chedde, 74190 Le Fayet, France |
| Abstract: | The limit of penetration of a given coal-tar pitch into two cokes during mixing of the coke and liquid tar has been studied. It was shown that tar penetration is limited by compression of gas occluded in pores. Mercury porosimetry of cokes and pyrolysed coke-tar mixtures as well as micrographs of cokes impregnated with tar allow one to estimate the limiting pore diameter of tar penetration into coke at ca. 6 μm for the system considered. |
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