ENERGY AND ECONOMIC INDICATORS OF FAST ABLATIVE PYROLYSIS TECHNOLOGY WITH CONE SCREW REACTOR


  • V.I. Zubenko Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, vul. Zhelyabova, 2a, Kyiv, 03680, Ukraine
  • O.V. Epik Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, vul. Zhelyabova, 2a, Kyiv, 03680, Ukraine
  • V.O. Antonenko Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, vul. Zhelyabova, 2a, Kyiv, 03680, Ukraine
  • E.M. Oliynyk Institute of Engineering Thermophysics of the National Academy of Sciences of Ukraine, vul. Zhelyabova, 2a, Kyiv, 03680, Ukraine
Keywords: fast ablative pyrolysis, screw reactor, bio-oil, biochar, pyrogas, pyrolysis energy efficiency

Abstract

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.

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Published
2018-09-07
How to Cite
Zubenko, V., Epik, O., Antonenko, V., & Oliynyk, E. (2018). ENERGY AND ECONOMIC INDICATORS OF FAST ABLATIVE PYROLYSIS TECHNOLOGY WITH CONE SCREW REACTOR. Industrial Heat Engineering, 40(3), 76-84. https://doi.org/https://doi.org/10.31472/ihe.3.2018.10
Section
Fuel Utilization and Burning, Heat Power Units, Ecology

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