Desulphurization of some low-rank Turkish lignites with crude laccase produced from Trametes versicolor ATCC 200801
| Autor: | Mesut Şam, Pınar Aytar, Serap Gedikli, Nazif Kolankaya, Arzu Ünal, Ahmet Çabuk, Alp Yürüm |
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| Přispěvatelé: | Sabire Yazıcı Fen Edebiyat Fakültesi, Gedikli, Serap -- 0000-0001-5632-6585, SAM, Mesut -- 0000-0002-6429-7144 |
| Jazyk: | angličtina |
| Rok vydání: | 2011 |
| Předmět: |
Laccase
biology Chemistry business.industry General Chemical Engineering Pulp (paper) Energy Engineering and Power Technology chemistry.chemical_element engineering.material Turkish Lignites Pulp and paper industry biology.organism_classification Sulfur respiratory tract diseases Incubation period Fuel Technology engineering Organic chemistry Coal Desulphurization Particle size business Incubation Trametes versicolor |
| Popis: | WOS: 000284673500010 In this paper, data obtained during the oxidative desulphurization of some low-rank Turkish lignites with crude laccase enzyme produced from Trametes versicolor ATCC 200801 are presented. In order to optimize desulphurization conditions, effects of incubation time, pulp density, incubation temperature, medium pH, and also lignite source on the desulphurization have been examined. The values for incubation period, pulp density, temperature and pH in optimum incubation condition were found as 30 min, 5%, 35 degrees C, and pH 5.0, respectively. Under optimum conditions, treatment of coal samples with crude laccase has caused nearly 29% reduction in their total sulphur content. During the study, the rate of desulphurization of coal sample provided from Tuncbilek with crude laccase was found to be relatively higher than the other examined coal samples. Results of analytical assays have indicated that the treatment of coals with crude laccase has caused no change in their calorific values but reduced their sulphur emissions. 35%, 13%, and 25% reductions of pyritic sulphur, sulphate and organic sulphur in a period of 30 min were achieved, for a particle size of 200 mu m under optimal conditions with enzymatic desulphurization. Also, statistical analyses such as Tukey Multiple Comparison tests and ANOVA were performed. (C) 2010 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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