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- W1517560874 abstract "The aim of this work was to produce mesophase by using preasphaltenes and asphaltenes from coal liquid extracts obtained in a Direct Coal Liquefaction (DCL) process. Preasphaltenes and asphaltenes were carbonized at inert atmosphere at temperatures of 350, 400 and 450 °C during 180 min. The mesophase identification and quantification was performed by polarized light microscopy. The results showed that the highest concentration of mesophase (79% v/v), with mass yield of 12,4% w/w, was obtained from the asphaltenes treated at 400 °C. The highest mesophase global yield (with respect to coal fed) was 4,4% w/w." @default.
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- W1517560874 date "2014-02-12" @default.
- W1517560874 modified "2023-09-27" @default.
- W1517560874 title "Asphaltenes and preasphaltenes from coal liquid extracts: feedstocks to obtain carbon mesophase" @default.
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- W1517560874 doi "https://doi.org/10.17533/udea.redin.16169" @default.
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