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Ethanol production from industrial hemp: effect of combined dilute acid/steam pretreatment and economic aspects

Published

7 years ago

May 14, 2014

Republished by Plato

. 2014 Jul;163:236-43.

doi: 10.1016/j.biortech.2014.04.049. Epub 2014 Apr 24.

Affiliations

¹ Faculty of Materials and Environmental Sciences, University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biala, Poland.
² Department of Environmental Engineering, Technical University of Denmark, Building 113, DK-2800 Lyngby, Denmark.
³ Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Box 103, SE-230 53 Alnarp, Sweden.
⁴ Department of Plant Breeding, Swedish University of Agricultural Sciences, Box 101, SE-230 53 Alnarp, Sweden.
⁵ Department of Environmental Engineering, Technical University of Denmark, Building 113, DK-2800 Lyngby, Denmark. Electronic address: iria@env.dtu.dk.

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Mariusz Kuglarz et al. Bioresour Technol. 2014 Jul.

. 2014 Jul;163:236-43.

doi: 10.1016/j.biortech.2014.04.049. Epub 2014 Apr 24.

Affiliations

¹ Faculty of Materials and Environmental Sciences, University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biala, Poland.
² Department of Environmental Engineering, Technical University of Denmark, Building 113, DK-2800 Lyngby, Denmark.
³ Department of Biosystems and Technology, Swedish University of Agricultural Sciences, Box 103, SE-230 53 Alnarp, Sweden.
⁴ Department of Plant Breeding, Swedish University of Agricultural Sciences, Box 101, SE-230 53 Alnarp, Sweden.
⁵ Department of Environmental Engineering, Technical University of Denmark, Building 113, DK-2800 Lyngby, Denmark. Electronic address: iria@env.dtu.dk.

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Abstract

In the present study, combined steam (140-180°C) and dilute-acid pre-hydrolysis (0.0-2.0%) were applied to industrial hemp (Cannabis sativa L.), as pretreatment for lignocellulosic bioethanol production. The influence of the pretreatment conditions and cultivation type on the hydrolysis and ethanol yields was also evaluated. Pretreatment with 1% sulfuric acid at 180°C resulted in the highest glucose yield (73-74%) and ethanol yield of 75-79% (0.38-0.40 g-ethanol/g-glucose). Taking into account the costs of biomass processing, from field to ethanol facility storage, the field-dried hemp pretreated at the optimal conditions showed positive economic results. The type of hemp cultivation (organic or conventional) did not influence significantly the effectiveness of the pretreatment as well as subsequent enzymatic hydrolysis and ethanol fermentation.

Keywords: Bioethanol; Economic analysis; Industrial hemp; Steam pretreatment.

Cited by 1 article

Characterization and Preparation of Nano-porous Carbon Derived from Hemp Stems as Anode for Lithium-Ion Batteries.

Guan Z, Guan Z, Li Z, Liu J, Yu K. Guan Z, et al. Nanoscale Res Lett. 2019 Nov 7;14(1):338. doi: 10.1186/s11671-019-3161-1. Nanoscale Res Lett. 2019. PMID: 31701241 Free PMC article.

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Source: https://pubmed.ncbi.nlm.nih.gov/24821202/?utm_source=no_user_agent&utm_medium=rss&utm_campaign=pubmed-2&utm_content=1XAOX_jnjTyCUo06Xbq0lslwi760CIxcWfQx0n9x5BPH5yV1sN&fc=20200804212910&ff=20200812190952&v=2.11.5

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