Techno-economic evaluation of integrating torrefaction with anaerobic digestion

Tharaka Rama Krishna C. Doddapaneni, Praveen Ramasamy, Henrik Tolvanen, Jukka Rintala, Jukka Konttinen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

In recent days, the interest on torrefaction is increasing owing to its ability to improve biomass properties to a level of competing with coal. However, its techno-economic feasibility still need to be optimized. Integrating torrefaction with other thermochemical and biochemical processes could be a feasible option to improve the performance of the torrefaction process. In that regard, this study evaluates the techno-economic feasibility of integrating the torrefaction with anaerobic digestion (AD). In addition, new process configurations were studied to identify the possible heat energy recovery options. Technical feasibility was tested through mass and energy balance at each process unit. The economic indicators such as net present value (€), minimum selling price and internal rate on return (%) were used to evaluate the economic performance. At 10 t/h of torrefied biomass pellets production capacity, the estimated bio-methane production from AD was 369 m3/h. The economic evaluation shows that the minimum selling price of the torrefied biomass to reach the breakeven could be reduced from 199 €/t for standalone torrefaction to 185 €/t in case of torrefaction integrated with AD. The sensitivity analysis shows that feedstock and total capital investment were the most sensitive input parameters. This study shows that integrating the torrefaction with AD has better technical and economic feasibility than standalone torrefaction.
OriginalsprogEngelsk
TidsskriftApplied Energy
Vol/bind213
Sider (fra-til)272-284
ISSN0306-2619
DOI
StatusUdgivet - 2018
Udgivet eksterntJa

Citer dette

Doddapaneni, Tharaka Rama Krishna C. ; Ramasamy, Praveen ; Tolvanen, Henrik ; Rintala, Jukka ; Konttinen, Jukka. / Techno-economic evaluation of integrating torrefaction with anaerobic digestion. I: Applied Energy. 2018 ; Bind 213. s. 272-284.
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abstract = "In recent days, the interest on torrefaction is increasing owing to its ability to improve biomass properties to a level of competing with coal. However, its techno-economic feasibility still need to be optimized. Integrating torrefaction with other thermochemical and biochemical processes could be a feasible option to improve the performance of the torrefaction process. In that regard, this study evaluates the techno-economic feasibility of integrating the torrefaction with anaerobic digestion (AD). In addition, new process configurations were studied to identify the possible heat energy recovery options. Technical feasibility was tested through mass and energy balance at each process unit. The economic indicators such as net present value (€), minimum selling price and internal rate on return ({\%}) were used to evaluate the economic performance. At 10 t/h of torrefied biomass pellets production capacity, the estimated bio-methane production from AD was 369 m3/h. The economic evaluation shows that the minimum selling price of the torrefied biomass to reach the breakeven could be reduced from 199 €/t for standalone torrefaction to 185 €/t in case of torrefaction integrated with AD. The sensitivity analysis shows that feedstock and total capital investment were the most sensitive input parameters. This study shows that integrating the torrefaction with AD has better technical and economic feasibility than standalone torrefaction.",
author = "Doddapaneni, {Tharaka Rama Krishna C.} and Praveen Ramasamy and Henrik Tolvanen and Jukka Rintala and Jukka Konttinen",
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Techno-economic evaluation of integrating torrefaction with anaerobic digestion. / Doddapaneni, Tharaka Rama Krishna C.; Ramasamy, Praveen; Tolvanen, Henrik; Rintala, Jukka; Konttinen, Jukka.

I: Applied Energy, Bind 213, 2018, s. 272-284.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Techno-economic evaluation of integrating torrefaction with anaerobic digestion

AU - Doddapaneni, Tharaka Rama Krishna C.

AU - Ramasamy, Praveen

AU - Tolvanen, Henrik

AU - Rintala, Jukka

AU - Konttinen, Jukka

PY - 2018

Y1 - 2018

N2 - In recent days, the interest on torrefaction is increasing owing to its ability to improve biomass properties to a level of competing with coal. However, its techno-economic feasibility still need to be optimized. Integrating torrefaction with other thermochemical and biochemical processes could be a feasible option to improve the performance of the torrefaction process. In that regard, this study evaluates the techno-economic feasibility of integrating the torrefaction with anaerobic digestion (AD). In addition, new process configurations were studied to identify the possible heat energy recovery options. Technical feasibility was tested through mass and energy balance at each process unit. The economic indicators such as net present value (€), minimum selling price and internal rate on return (%) were used to evaluate the economic performance. At 10 t/h of torrefied biomass pellets production capacity, the estimated bio-methane production from AD was 369 m3/h. The economic evaluation shows that the minimum selling price of the torrefied biomass to reach the breakeven could be reduced from 199 €/t for standalone torrefaction to 185 €/t in case of torrefaction integrated with AD. The sensitivity analysis shows that feedstock and total capital investment were the most sensitive input parameters. This study shows that integrating the torrefaction with AD has better technical and economic feasibility than standalone torrefaction.

AB - In recent days, the interest on torrefaction is increasing owing to its ability to improve biomass properties to a level of competing with coal. However, its techno-economic feasibility still need to be optimized. Integrating torrefaction with other thermochemical and biochemical processes could be a feasible option to improve the performance of the torrefaction process. In that regard, this study evaluates the techno-economic feasibility of integrating the torrefaction with anaerobic digestion (AD). In addition, new process configurations were studied to identify the possible heat energy recovery options. Technical feasibility was tested through mass and energy balance at each process unit. The economic indicators such as net present value (€), minimum selling price and internal rate on return (%) were used to evaluate the economic performance. At 10 t/h of torrefied biomass pellets production capacity, the estimated bio-methane production from AD was 369 m3/h. The economic evaluation shows that the minimum selling price of the torrefied biomass to reach the breakeven could be reduced from 199 €/t for standalone torrefaction to 185 €/t in case of torrefaction integrated with AD. The sensitivity analysis shows that feedstock and total capital investment were the most sensitive input parameters. This study shows that integrating the torrefaction with AD has better technical and economic feasibility than standalone torrefaction.

U2 - 10.1016/j.apenergy.2018.01.045

DO - 10.1016/j.apenergy.2018.01.045

M3 - Journal article

VL - 213

SP - 272

EP - 284

JO - Applied Energy

JF - Applied Energy

SN - 0306-2619

ER -