Thermal decarboxylation of demineralized Turkish Beypazari lignite by the catalytic effect of Cr2+, Fe2+, and Co2+
Dumanlı, Ahu Gümrah and Okyay, Firuze and Çelik, Batuhan and Kuru, Erkin and Nergiz, Zeynep Saide and Ok, Ekin and Saygı, Ceren and Yürüm, Yuda (2010) Thermal decarboxylation of demineralized Turkish Beypazari lignite by the catalytic effect of Cr2+, Fe2+, and Co2+. Energy Sources, 32 (17). pp. 1659-1670. ISSN 0090-8312
Official URL: http://dx.doi.org/10.1080/15567030902842277
Demineralized Beypazari lignite were thermally decarboxylated using Cr2+, Fe2C, and Co2+ as decarboxylation catalysts. Effective loadings of Cr2+, Fe2+, and Co2C were 2, 5, and 3%, respectively. The calorific values of the demineralized lignite samples increased after the thermal decarboxylation experiments to values about 6, 12, and 15% higher than that of the untreated demineralized sample, when Cr2+, Fe2+, and Co2+, respectively, were used as catalysts. The most effective catalyst, with respect to the lowest activation energy attained, was Cr2+. Decarboxylation temperatures using Cr2+, Fe2+, and Co2+ as catalysts were 150, 100, and 200oC, respectively.
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