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Conversion of vine shoots into bioethanol and chemicals: Prospective LCA of biorefinery concept.

Published on Feb 1, 2020in Bioresource Technology6.669
· DOI :10.1016/J.BIORTECH.2020.122946
Elia Ruiz Pachón3
Estimated H-index: 3
(EPFL: École Polytechnique Fédérale de Lausanne),
Prasad Mandade1
Estimated H-index: 1
(EPFL: École Polytechnique Fédérale de Lausanne),
Edgard Gnansounou28
Estimated H-index: 28
(EPFL: École Polytechnique Fédérale de Lausanne)
Abstract
Abstract Vine shoots are the viticulture residues generated in high quantities after the grapevine pruning. They are lignocellulosic material poorly exploited as feedstock. These wastes are often dumped in the agriculture fields or burnt. Due to their availability and relatively low price, vine shoots are considered as potential feedstock for biochemical conversion into value-added products. In this work, two biorefinery scenarios using vine shoots as feedstock to co-produce chemicals are assessed from an environmental point of view: production of lactic acid, and co-production of lactic acid and furfural. A CHP area was considered to be annexed to the plants to produce heat and electricity for internal use. The Aspen Plus and SimaPro commercial software were used to perform the LCA of the selected scenarios. The assessed scenarios demonstrate significant reductions in climate change, fossil fuel depletion, freshwater ecotoxicity and eutrophication and human toxicity impacts compared to their counterfactual systems.
  • References (34)
  • Citations (1)
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References34
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#1Izaskun Dávila (UPV/EHU: University of the Basque Country)H-Index: 7
#2Beatriz Gullón (University of Santiago de Compostela)H-Index: 18
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Abstract Vine shoots were subjected to a hydrothermal treatment to cause the selective solubilisation of the hemicelluloses. The hemicelluloses solubilisation products were refined by a sequential processing with nanofiltration and ion exchange obtaining a refined product with a purity of 99%. A depth chemical and structural characterization of the purified oligosaccharide mixture from vine shoots was performed for the first time by HPLC, FTIR, HPAEC-PAD, MALDI-TOF and UPLC-DAD-ESI-MS. The chara...
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Abstract The use of vine shoots as feedstock in biorefining activities to obtain bioproducts under efficient and optimized conditions could be crucial to make future high added value compounds and processes more sustainable. In this study, five different potential valorization scenarios from vine shoots differing on diverse extraction and delignification steps were assessed from an environmental perspective using the Life Cycle Assessment methodology to identify the most sustainable biorefining ...
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Abstract Vine shoots, considered a residue from winery operations, possess valuable antioxidant and antimicrobial activities that can be potentially obtained under the scheme of biorefinery. In this framework, we evaluated the autohydrolysis of vine shoots combined with a further stage of extraction with ethyl acetate as viable valorization process. The extraction yield ranged from 0.95 to 3.80 g extract/100 g vine shoots. Moderately high temperature (215 °C) was required for the maximum recover...
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