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- W3025844387 abstract "Trommel fines are solid wastes with particle sizes of 30 wt.%) and along with the volatile matter and higher heating values (HHV), varied in relation to particle sizes. By careful pre-treatment process design, the size fraction 0.5 mm – 2 mm, which was suitable for fast pyrolysis, had an experimental energy content of 13.8 MJ kg -1. The energy contents of the AW and AWS feedstocks increased with a reduction in ash contents after the respective washing procedures. A 300 g h-1 bubbling fluidised bed fast pyrolysis rig was used to investigate the effect of temperature and moisture content on product yields and process conversion efficiency of dry physically pre-treated trommel fines (PT) to determine their optimum processing conditions. Investigations were also undertaken to study the effect of feedstock pre-treatment method; dry (PT) and wet (AW and AWS) on both the pyrolysis products and process conversion efficiency. Using PT feedstock, the highest organic liquid yield and highest conversion efficiency was obtained between 500 °C and 550 oC with <3 wt% feedstock moisture content. The organic liquid yield and the process conversion efficiencies increased with AW and AWS feedstocks, with AW feedstock giving the best results. The HHV of primary condensate from all feedstocks was greater than 30 MJ kg-1 and the washing procedure was found to reduce the nitrogen contents of the liquid products especially in the secondary condensate liquids.The fast pyrolysis results were used to determine the economic feasibility of the fast pyrolysis technology at PT optimum processing conditions for energy recovery and management of trommel fines at different processing capacities. The PT fast pyrolysis was found to be economically feasible from 2000 kg h-1 processing capacity, with a capital investment payback period of 8.6 years at 20% interest rate. The net present value (NPV) increased with the AW and AWS feedstocks and further analysis showed that processing these feedstocks could still be economically feasible at capacities of approximately 1000 kg h-1. 3 Overall, the results of this study suggest that the laboratory-scale fast pyrolysis rig used in this study and the developed economic model can form the basis for future research and process development for treatment of MSW." @default.
- W3025844387 created "2020-05-21" @default.
- W3025844387 creator A5041309177 @default.
- W3025844387 date "2018-07-25" @default.
- W3025844387 modified "2023-09-23" @default.
- W3025844387 title "An experimental feasibility study on fast pyrolysis of MSW-derived trommel fines for energy recovery and waste management" @default.
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