کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
678687 888664 2008 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hydrothermal processing of biomass from invasive aquatic plants
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
Hydrothermal processing of biomass from invasive aquatic plants
چکیده انگلیسی

The purpose of this study was to examine the hydrothermal (HT) treatment of three invasive aquatic plants (i.e., Lemna sp., Hydrilla sp., and Eichhornia sp.) with respect to the generation of semi-volatile hydrocarbon product mixtures and biomass volume reduction. Identical HT treatments yielded similar semi-volatile product mixtures for Hydrilla sp. and Eichhornia sp. versus a significantly different mixture for Lemna sp. Pre-treatment (i.e., control) extracts of the plant substrates showed no semi-volatile hydrocarbons. Post-HT treatment product mixtures were comprised of complex mixtures of compounds including branched and unbranched alkanes and alkenes as well as light aromatics including substituted benzenes and phenols. All three plant HT product mixtures were dominated by phenol, C1 alkyl phenols, and oxygenated cycloalkenes. Lemna sp. products showed much more diverse distributions of C2–C5 alkyl benzenes, alkyl indanes, and alkyl naphthalenes at higher relative levels. Other products from the Lemna sp. HT treatment included C2–C4 phenols, and alkyl indole and indanol compounds. Results of wet chemical analyses showed that a major difference between Lemna sp. and the other two plants was significantly higher extractives levels in the former. It was found that this fraction accounted for much of the complexity in HT product mixture of the Lemna sp. biomass. For all HT treatments the substrate mass was reduced by 95% or more.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomass and Bioenergy - Volume 32, Issue 2, February 2008, Pages 140–145
نویسندگان
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