Open AccessENERGY AND ECONOMIC INDICATORS OF FAST ABLATIVE PYROLYSIS TECHNOLOGY WITH CONE SCREW REACTOR
Author(s) -
Vitalii Zubenko,
O.V. Epik,
Viacheslav Antonenko,
E.M. Oliynyk
Publication year - 2018
Publication title -
promyšlennaâ teplotehnika
Language(s) - English
Resource type - Journals
ISSN - 0204-3602
DOI - 10.31472/ihe.3.2018.10
Subject(s) - biomass (ecology) , pyrolysis , process engineering , biochar , yield (engineering) , environmental science , pulp and paper industry , waste management , materials science , engineering , agronomy , composite material , biology
The article contains the aggregated results of the development and optimization of laboratory installation for ablative fast pyrolysis performance with productivity 1-4 kg/hour on final products. The experimental data on the series of experiments (>60) with analysis of the influence of certain range of input parameters on the bio-oil yield and qualitative parameters of output products is presented. The optimization of installation regimes and input parameters for bio-oil yield maximization for different biomass types is performed. It was found that the ratio of three output products is not always optimal maximizing bio-oil yield with respect to energy yield in the products. The maximum achieved bio-oil yield is 51% by mass rated to the input products. It is revealed, that the essential parameters which influence on the final bio-oil yield are temperature in the reactor, time of biomass particles existence in the reactor, fraction of biomass particles. The mass distribution for pyrolysis by-products (pyrogas and biochar) is dependent on the initial moisture content of biomass and organization of condensation process of bio-oil. The energy balance of installation demonstrates the average efficiency of the pyrolysis process on the level of 65% (with maximum 98%) and could be increased to 75% average with simple reconstruction of installation. On the basis of obtained laboratory data the scaling of the installation was performed with development of commercial prototype with productivity of 50 kg/hour. On the basis of obtained technical data, the assessment of economic indicators of bio-oil and biochar production with large sized mobile installation has been performed demonstrating the good commercial feasibility of the installation performance.