Life Cycle assessment of biorefinery technology producing activated carbon and levulinic acid

Chaparro-Garnica, Jessica; Guiton, Mélanie; Salinas-Torres, David; Morallón, Emilia; Benetto, Enrico; Cazorla‐Amorós, D.

doi:10.1016/j.jclepro.2022.135098

Cited by 12 publications

(7 citation statements)

References 25 publications

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“…Hence, the CFs used by the respective methods were the reason for the variation in the NMVOC emissions between the LCIA methods. The CF for pyridine was the highest for all three LCIA methods compared to other substances, which is mainly because of the high ecotoxicity and human toxicity potential of pyridine [45]. Similar to ozone formation, ReCiPe 2016 had the highest impact when estimating the individual NMVOC emissions for freshwater ecotoxicity as well.…”

Section: Midpoint Impact Categories: Considering Individual Nmvoc Vs ...mentioning

confidence: 97%

Considering Grouped or Individual Non-Methane Volatile Organic Compound Emissions in Life Cycle Assessment of Composting Using Three Life Cycle Impact Assessment Methods

Joseph,

Stichnothe

2024

Recycling

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Composting is a waste management practice that converts organic waste into a product that can be used safely and beneficially as a bio-fertiliser and soil amendment. Non-methane volatile organic compounds (NMVOCs) from composting are known to cause damage to human health and the environment. The impact of waste management on the environment and workers is recognised as a growing environmental and public health concern. Measurements of NMVOCs emitted during composting have been carried out only in a few studies. NMVOC emissions are typically reported as a group rather than as species or speciation profiles. Recognising the need to investigate the issues associated with NMVOCs, the objective of this study is to estimate variation in life cycle assessment (LCA) results when NMVOCs are considered individual emissions compared to grouped emissions and to compare midpoint and endpoint life cycle impact assessment (LCIA) methods. In general, the ReCiPe 2016 LCIA method estimated the highest impact from the composting process in comparison to IMPACT World+ and EF 3.0 for the impact categories of ozone formation, stratospheric ozone depletion, and particulate matter formation. For ReCiPe 2016 and IMPACT World+, the NMVOC emissions were not linked to human toxicity characterisation factors, meaning that the contribution from NMVOC towards human health risks in and around composting facilities could be underestimated. Using individual NMVOCs helps to additionally estimate the impacts of composting on freshwater ecotoxicity and human carcinogenic and non-carcinogenic toxicity potential. If ecotoxicity or toxicity issues are indicated, then LCA should be accompanied by suitable risk assessment measures for the respective life cycle stage.

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Section: Midpoint Impact Categories: Considering Individual Nmvoc Vs ...mentioning

confidence: 97%

Considering Grouped or Individual Non-Methane Volatile Organic Compound Emissions in Life Cycle Assessment of Composting Using Three Life Cycle Impact Assessment Methods

Joseph,

Stichnothe

2024

Recycling

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“…Assess the technical and environmental performances of H 3 PO 4 -assisted HTC process chain existing at the laboratory scale, to eventually support its optimization and further upscale from an ecodesign perspective 0.4 g of activated carbon and 0.066 g of levulinic acid per gram of almond shell [27] Dairy Manure…”

Section: Agricultural Waste Digestatementioning

confidence: 99%

“…A few exceptions to this existed. One exception was a study by Chaparro-Garnica et al [27], whose study used the HC as an environmental adsorbent. The impact assessment conducted in these studies generally included four or more impact categories (Figures 1 and 2), with 47% of the papers utilizing some version of the ReCiPe impact assessment method.…”

Section: Organic Fraction Of Msw and Ad Digestatementioning

confidence: 99%

“…Other applications for the HC have been proposed in the literature, such as using the HC as an adsorbent. Chaparro-Garnica et al [27] conducted an LCA study investigating the environmental impacts of converting HC generated from the carbonization of almond shells to an activated carbon via H 3 PO 4 activation (activation occurred within the system). Results indicated that electricity needs and pyridine, needed for functionalization, were the processes responsible for the greatest impacts on the environment.…”

Section: Feedstockmentioning

confidence: 99%

“…Results indicated that electricity needs and pyridine, needed for functionalization, were the processes responsible for the greatest impacts on the environment. It should be noted that Chaparro-Garnica et al [27] used LCA results to redesign their process and reduce environmental impact. Involving LCA in technology development has been shown to result in more environmentally beneficial processes [60,61].…”

Section: Feedstockmentioning

confidence: 99%

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Life Cycle Assessment of Hydrothermal Carbonization: A Review of Product Valorization Pathways

Ogunleye,

Flora,

Berge

2024

Agronomy

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Hydrothermal carbonization (HTC) has the potential to be a sustainable and environmentally beneficial approach for organic waste treatment. It is likely that HTC product use will dictate the viability of large-scale HTC facilities; therefore, understanding the viability and environmental implications associated with HTC product valorization pathways is critical. The overall goal of this review is to gain an understanding of how HTC product valorization is currently being modeled in life cycle assessment studies, and to use such information to assess current research and/or data needs associated with product valorization. To accomplish this, a review of existing HTC literature was conducted and used to assess the current state of knowledge surrounding the environmental implications of HTC product use. From this review of the literature, it is clear that potential exists for HTC product valorization. To realize this potential in a full-scale application, research gaps and data needs were identified that included a system-level integration to evaluate location-specific information as well as more extensive characterization of the impact of HTC product properties on valorization impacts.

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Exploring the Effects Behind the Outstanding Catalytic Performance of PdAg Catalysts Supported on Almond Shell‐Derived Activated Carbon Towards the Dehydrogenation of Formic Acid

Riquelme‐García,

Chaparro‐Garnica,

Navlani‐García

et al. 2024

ChemCatChem

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In this work, highly efficient carbon‐supported Pd‐based catalysts for formic acid dehydrogenation were synthesized by a straightforward wet impregnation‐reduction method. The carbon support was obtained from a biomass residue (almond shell) prepared via H3PO4‐assisted hydrothermal carbonization (HTC) and thermal activation. This carbon support was doped with nitrogen groups to study the effect on the electronic properties and catalytic performance of the catalysts. Investigating the formation of PdAg alloys with varying Pd:Ag molar ratios resulted in catalysts exhibiting enhanced catalytic activity compared to monometallic Pd counterparts. Notably, the Pd1Ag0.5/NAS catalyst displayed outstanding catalytic performance, achieving an initial TOF of 1716 h‐1 (calculated in the first 3 minutes of reaction and expressed per mole of Pd) and maintaining substantial activity over 6 consecutive reaction cycles. This work elucidates the successful synthesis of effective catalysts, emphasizing the influence of nitrogen doping and PdAg alloy composition on catalytic behavior and stability.

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Life Cycle assessment of biorefinery technology producing activated carbon and levulinic acid

Cited by 12 publications

References 25 publications

Considering Grouped or Individual Non-Methane Volatile Organic Compound Emissions in Life Cycle Assessment of Composting Using Three Life Cycle Impact Assessment Methods

Considering Grouped or Individual Non-Methane Volatile Organic Compound Emissions in Life Cycle Assessment of Composting Using Three Life Cycle Impact Assessment Methods

Life Cycle Assessment of Hydrothermal Carbonization: A Review of Product Valorization Pathways

Exploring the Effects Behind the Outstanding Catalytic Performance of PdAg Catalysts Supported on Almond Shell‐Derived Activated Carbon Towards the Dehydrogenation of Formic Acid

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