ENERGY AND ECONOMIC INDICATORS OF FAST ABLATIVE PYROLYSIS TECHNOLOGY WITH CONE SCREW REACTOR
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.
2. Lédé J. Biomass fast pyrolysis reactors: a review of a few scientific challenges and of recommended research topics // Oil Gas Sci. Technol.–Rev. IFP Energies Nov. 68 (5). 2013, P. 801–814.
3. Lédé J., Diebold J.P., Peacocke G.V.C., Piskorz J. The nature and properties of intermediate and unvaporized biomass pyrolysis materials, in: A.V. Bridgwater, et al. (Eds.) // Fast Pyrolysis of Biomass: A Handbook, CPL Press, Newburry (UK) 1999.
4. BTG-BTL technology: https://www.btg-btl.com/en/technology.
5. Klimenko V.M., Bashtovyi A.I., Zubenko V.I., Antoshchuk T.O., Doslіdzhennia shvydkoho pіrolіzu bіomasy v abliatsіinomu shnekovomu reaktorі. [Investigation of biomass fast pyrolysis in the ablative screw reactor], Promyshlennaya teplotekhnika [Industrial Heat Engineering],. 2016, v.37, N 2, P. 20–27.
6. Lede J., Panagopoulos J., Li H.Z. and Villermaux J. Fast pyrolysis of wood: direct measurement and study of ablation rate // Fuel, – 1985. – Vol. 64, Issue 11. Р. 1514–1520.
7. Chiaramonti D., Oasmaa A., Solantausta Y. “Power generation using fast pyrolysis liquids from biomass” // Renewable and Sustainable Energy Reviews (http://www.sciencedirect.com) 2005.
8. Zubenko V.I., Bashtovyi A.I., Antoshchuk T.O., Investigation of biomass fast pyrolysis in the ablative screw reactor // Proceedings of the 5th International conference on Thermal Equipment, Renewable Energy and Rural Development, June 2-4, Golden Sands, Bulgaria (ISSN 2457-3302, ISSN-L 2457-3302). P. 21–26.
Abstract views: 80 PDF Downloads: 29
This work is licensed under a Creative Commons Attribution 4.0 International License.
If the article is accepted for publication in the journal «Industrial Heat Engineering» the author must sign an agreementon transfer of copyright. The agreement is sent to the postal (original) or e-mail address (scanned copy) of the journal editions.
Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License International CC-BY that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.