Use of biomass-derived glycerol as an alternative to fossil fuels for aniline production: Energy saving and environmental aspects

Khademi, Mohammad Hasan; Lotfi-Varnoosfaderani, Mohammad

doi:10.1016/j.fuel.2021.122359

Cited by 14 publications

(7 citation statements)

References 51 publications

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“…It can also be used in the food industry, as an additive, or to produce triacetin, which constitutes cigarettes, or even in the production of nitro-glycerine. From the energy point of view, it can be used both as a carbon source in anaerobic digestion processes and as an energy vector in catalytic processes for hydrogen production (Tabatabaei et al 2019;Andreeva et al 2022;Khademi and Lotfi-Varnoosfaderani 2022).…”

Section: Circular Design For New Products: Biodiesel From Exhausted C...mentioning

confidence: 99%

Circular economy paths in the olive oil industry: a Life Cycle Assessment look into environmental performance and benefits

Ncube

Fiorentino

Panfilo

et al. 2022

Int J Life Cycle Assess

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PurposeThe olive oil sector in Italy has a significant socio-economic, environmental, and cultural relevance. However, the environmental impacts of production and consumption models are considerable, mainly due to the demand for large quantities of resources (fuels, chemicals) and to the environmental impacts of residues' disposal. Due to the scarcity of resources and climate change concerns, circular economy principles based on industrial ecology concepts are emerging. In this paper, the principles of circular economy were specifically applied to the olive oil supply chain, to improve the environmental sustainability of the sector. Methods The production chain of extra virgin olive oil was analyzed using the Life Cycle Assessment method, based on primary data from an oil farm and mill in Southern Italy. The environmental impacts were evaluated through the SimaPro software and the ReCiPe 2016 Mid-point (H) Impact Assessment Method, with reference to the functional unit of 1-L bottle of extra virgin olive oil. Some circular improvement options were investigated, comparing the impacts generated by (i) extra virgin olive oil linear production without valorization of by-products, (ii) extra virgin olive oil linear production with allocation of total impacts to co-products, and (iii) two circular production systems, incorporating improvements such as replacement of diesel with biodiesel and of electricity from the national grid with energy recovered from residues. Results and discussionThe environmental impacts of the business-as-usual production pattern were identified for possible improvements. In all phases of the production chain of organic extra virgin olive oil, the most affected impact categories were human carcinogenic toxicity, marine ecotoxicity, and terrestrial ecotoxicity. As expected, the major contributions to almost all the analyzed impact categories were determined by the agricultural phase (92.65%), followed by the bottling phase (7.13%) and the oil extraction phase (0.22%). The valorization of by-products was considered by widening the system boundaries to ensure the environmental sustainability by developing circular patterns that feedback waste materials to upstream steps of the same process. The environmental impacts resulted lower in almost all the impact categories, with the major benefits gained in the global warming and fossil depletion impact categories. Conclusions The analysis proved that the reuse of pomace, prunings, and exhausted cooking oil initially considered as waste can bring benefits from an environmental point of view to the larger scale of the economy, by replacing fossil fuels, as well as to the olive oil chain itself, by providing the needed energy for production.

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Section: Circular Design For New Products: Biodiesel From Exhausted C...mentioning

confidence: 99%

Circular economy paths in the olive oil industry: a Life Cycle Assessment look into environmental performance and benefits

Ncube

Fiorentino

Panfilo

et al. 2022

Int J Life Cycle Assess

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“…Hence, membrane coupled reactors are used to increase yield and improve the energy efficiency of the endothermic reaction. Similar thermally coupled membrane reactors using NBH, such as glycerol steam reforming [62] and olefin production [63] have also been proposed.…”

Section: Nitrobenzene Hydrogenation (Nbh)mentioning

confidence: 99%

Multi-objective optimization of aniline and hydrogen production in a directly coupled membrane reactor

Díaz

Willis

2022

International Journal of Hydrogen Energy

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“…Fossil energy has always been the traditional raw material for bulk and fine chemicals production. However, due to the price fluctuation and environmental issues, more sustainable and environmental friendly feedstocks should be explored . With the rapid development of synthetic biology, biorefinery offers a promising alternative way to achieve biochemicals production from renewable feedstocks by different microbial cell factories. , Currently, most studies focus on the construction of single microbes in the biorefinery process.…”

Section: Introductionmentioning

confidence: 99%

Construction of Coculture System Containing Escherichia coli with Different Microbial Species for Biochemical Production

Pan

Yang

et al. 2023

ACS Synth. Biol.

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Microbial synthesis of target chemicals usually involves multienzymatic reactions in vivo, especially for compounds with a long metabolic pathway. However, when various genes are introduced into one single strain, it leads to a heavy metabolic burden. In contrast, the microbial coculture system can allocate metabolic pathways into different hosts, which will relieve the metabolic burdens. Escherichia coli is the most used chassis to synthesize biofuels and chemicals owing to its well-known genetics, high transformation efficiency, and easy cultivation. Accordingly, cocultures containing the cooperative E. coli with other microbial species have received great attention. In this review, the individual applications and boundedness of different combinations will be summarized. Additionally, the strategies for the self-regulation of population composition, which can help enhance the stability of a coculture system, will also be discussed. Finally, perspectives for the cocultures will be proposed.

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Use of biomass-derived glycerol as an alternative to fossil fuels for aniline production: Energy saving and environmental aspects

Cited by 14 publications

References 51 publications

Circular economy paths in the olive oil industry: a Life Cycle Assessment look into environmental performance and benefits

Circular economy paths in the olive oil industry: a Life Cycle Assessment look into environmental performance and benefits

Multi-objective optimization of aniline and hydrogen production in a directly coupled membrane reactor

Construction of Coculture System Containing Escherichia coli with Different Microbial Species for Biochemical Production

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