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The economics of renewable CaC2 and C2H2 production from biomass and CaO

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The economics of renewable CaC2 and C2H2 production from biomass and CaO. / Pääkkönen, A.; Tolvanen, H.; Kokko, L.

In: Biomass and Bioenergy, Vol. 120, 01.01.2019, p. 40-48.

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Pääkkönen, A. ; Tolvanen, H. ; Kokko, L. / The economics of renewable CaC2 and C2H2 production from biomass and CaO. In: Biomass and Bioenergy. 2019 ; Vol. 120. pp. 40-48.

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@article{30387e9b91594288872130e4cf8914dd,
title = "The economics of renewable CaC2 and C2H2 production from biomass and CaO",
abstract = "This article presents the economics of a bio-based CaC2/C2H2 production concept plant. The aim of the research was to study if renewable CaC2/C2H2 production could be competitive in comparison with current technologies. The starting point was to integrate a wood char production unit into a combined heat and power (CHP) plant with a bubbling fluidized bed (BFB) boiler. The wood char was reacted with CaO in an electric arc furnace (EAF). The production costs of the CaC2 were determined based on the wood char production costs as well as the EAF electric power consumption. The results showed that the C2H2 yield (18{\%}) is similar to the current fossil-based production. However, the production costs proved to be even higher than the current selling prices of CaC2 and C2H2. With the chosen basic feedstock (20 €/MWh) and electricity prices (45 €/MWh) the production costs of CaC2 were calculated to be 725 €/t and for C2H2 1805 €/t. The cost effectiveness of the concept plant was determined using the payback time method including the time value of money. The break even selling prices were 747–920 €/t for the CaC2 and 1940–3015 €/t for C2H2 depending on the desired payback time (4–30 years). The key factors in the production costs of CaC2 and C2H2 are the price of electricity and the electrical efficiency of the EAF. The results also showed that recycling the Ca at the site could save up to 48{\%} in fresh Ca material costs.",
keywords = "/C, H, Poly-generation, Renewable CaC, Renewable chemicals, Techno-economic evaluation",
author = "A. P{\"a}{\"a}kk{\"o}nen and H. Tolvanen and L. Kokko",
year = "2019",
month = "1",
day = "1",
doi = "10.1016/j.biombioe.2018.10.020",
language = "English",
volume = "120",
pages = "40--48",
journal = "Biomass & Bioenergy",
issn = "0961-9534",
publisher = "Elsevier",

}

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TY - JOUR

T1 - The economics of renewable CaC2 and C2H2 production from biomass and CaO

AU - Pääkkönen, A.

AU - Tolvanen, H.

AU - Kokko, L.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - This article presents the economics of a bio-based CaC2/C2H2 production concept plant. The aim of the research was to study if renewable CaC2/C2H2 production could be competitive in comparison with current technologies. The starting point was to integrate a wood char production unit into a combined heat and power (CHP) plant with a bubbling fluidized bed (BFB) boiler. The wood char was reacted with CaO in an electric arc furnace (EAF). The production costs of the CaC2 were determined based on the wood char production costs as well as the EAF electric power consumption. The results showed that the C2H2 yield (18%) is similar to the current fossil-based production. However, the production costs proved to be even higher than the current selling prices of CaC2 and C2H2. With the chosen basic feedstock (20 €/MWh) and electricity prices (45 €/MWh) the production costs of CaC2 were calculated to be 725 €/t and for C2H2 1805 €/t. The cost effectiveness of the concept plant was determined using the payback time method including the time value of money. The break even selling prices were 747–920 €/t for the CaC2 and 1940–3015 €/t for C2H2 depending on the desired payback time (4–30 years). The key factors in the production costs of CaC2 and C2H2 are the price of electricity and the electrical efficiency of the EAF. The results also showed that recycling the Ca at the site could save up to 48% in fresh Ca material costs.

AB - This article presents the economics of a bio-based CaC2/C2H2 production concept plant. The aim of the research was to study if renewable CaC2/C2H2 production could be competitive in comparison with current technologies. The starting point was to integrate a wood char production unit into a combined heat and power (CHP) plant with a bubbling fluidized bed (BFB) boiler. The wood char was reacted with CaO in an electric arc furnace (EAF). The production costs of the CaC2 were determined based on the wood char production costs as well as the EAF electric power consumption. The results showed that the C2H2 yield (18%) is similar to the current fossil-based production. However, the production costs proved to be even higher than the current selling prices of CaC2 and C2H2. With the chosen basic feedstock (20 €/MWh) and electricity prices (45 €/MWh) the production costs of CaC2 were calculated to be 725 €/t and for C2H2 1805 €/t. The cost effectiveness of the concept plant was determined using the payback time method including the time value of money. The break even selling prices were 747–920 €/t for the CaC2 and 1940–3015 €/t for C2H2 depending on the desired payback time (4–30 years). The key factors in the production costs of CaC2 and C2H2 are the price of electricity and the electrical efficiency of the EAF. The results also showed that recycling the Ca at the site could save up to 48% in fresh Ca material costs.

KW - /C

KW - H

KW - Poly-generation

KW - Renewable CaC

KW - Renewable chemicals

KW - Techno-economic evaluation

U2 - 10.1016/j.biombioe.2018.10.020

DO - 10.1016/j.biombioe.2018.10.020

M3 - Article

VL - 120

SP - 40

EP - 48

JO - Biomass & Bioenergy

JF - Biomass & Bioenergy

SN - 0961-9534

ER -