Letteratura scientifica selezionata sul tema "CO₂ valorization"
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Articoli di riviste sul tema "CO₂ valorization":
Ding, Pan, Jie Zhang, Na Han, Yuan Zhou, Lin Jia e Yanguang Li. "Simultaneous power generation and CO2 valorization by aqueous Al–CO2 batteries using nanostructured Bi2S3 as the cathode electrocatalyst". Journal of Materials Chemistry A 8, n. 25 (2020): 12385–90. http://dx.doi.org/10.1039/d0ta03761c.
Mengers, H. G., N. Guntermann, G. Franciò, W. Leitner e L. M. Blank. "In situ CO 2 valorization: Chemocatalysis meets biocatalysis". Chemie Ingenieur Technik 92, n. 9 (28 agosto 2020): 1272. http://dx.doi.org/10.1002/cite.202055062.
Kanari, N., N. Menad, F. Diot, E. Allain e J. Yvon. "Phosphate valorization by dry chlorination route". Journal of Mining and Metallurgy, Section B: Metallurgy 52, n. 1 (2016): 17–24. http://dx.doi.org/10.2298/jmmb150304027k.
Faleschini, Flora, Mariano Angelo Zanini, Katya Brunelli e Carlo Pellegrino. "Valorization of co-combustion fly ash in concrete production". Materials & Design 85 (novembre 2015): 687–94. http://dx.doi.org/10.1016/j.matdes.2015.07.079.
Igual, Marta, Maria Simona Chiş, Adriana Păucean, Dan Cristian Vodnar, Sevastița Muste, Simona Man, Javier Martínez-Monzó e Purificación García-Segovia. "Valorization of Rose Hip (Rosa canina) Puree Co-Product in Enriched Corn Extrudates". Foods 10, n. 11 (12 novembre 2021): 2787. http://dx.doi.org/10.3390/foods10112787.
Xi, Zhixiang, Bingjie Zhou, Yue Yu, Binbo Jiang, Zuwei Liao, Jingdai Wang, Zhengliang Huang, Yao Yang, Jingyuan Sun e Yongrong Yang. "Enhancing low-temperature methane conversion on Zn/ZSM-5 in the presence of methanol by regulating the methanol-to-aromatics reaction pathway". Catalysis Science & Technology 10, n. 18 (2020): 6161–72. http://dx.doi.org/10.1039/d0cy00449a.
Ferretti, Francesco, Muhammad Sharif, Sarim Dastgir, Fabio Ragaini, Ralf Jackstell e Matthias Beller. "Selective palladium-catalysed synthesis of diesters: alkoxycarbonylation of a CO2-butadiene derived δ-lactone". Green Chemistry 19, n. 15 (2017): 3542–48. http://dx.doi.org/10.1039/c7gc01366c.
Shen, Yafei, Dachao Ma e Xinlei Ge. "CO2-looping in biomass pyrolysis or gasification". Sustainable Energy & Fuels 1, n. 8 (2017): 1700–1729. http://dx.doi.org/10.1039/c7se00279c.
Ticali, Pierfrancesco, Davide Salusso, Rafia Ahmad, Christian Ahoba-Sam, Adrian Ramirez, Genrikh Shterk, Kirill A. Lomachenko et al. "CO2 hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO2/zeolite catalysts". Catalysis Science & Technology 11, n. 4 (2021): 1249–68. http://dx.doi.org/10.1039/d0cy01550d.
Trisunaryanti, Wega, Triyono Triyono, Elizabeth Selia Nandini e Endah Suarsih. "Biomass Valorization to Chemicals over Cobalt Nanoparticles on SBA-15". Bulletin of Chemical Reaction Engineering & Catalysis 17, n. 3 (3 agosto 2022): 533–41. http://dx.doi.org/10.9767/bcrec.17.3.15160.533-541.
Tesi sul tema "CO₂ valorization":
Barbosa, Rui Pedro Fernandes. "Study on the valorization routes of ashes from thermoelectric power plants working under mono-and co-combustion regimes". Doctoral thesis, Faculdade de Ciências e Tecnologia, 2013. http://hdl.handle.net/10362/11078.
The main objective of this thesis was to study new valorization routes of ashes produced in combustion and co-combustion processes. Three main valorization pathways were analyzed: (i)production of cement mortars, (ii) production of concretes, and (iii) use as chemical agents to remove contaminants from wastewaters. Firstly, the ashes produced during the mono-combustion of coal, co-combustion of coal and meat and bone meal (MBM), and mono-combustion of MBM were characterized. The aim of this study was to understand the ashes properties in extreme levels of substitution of coal by a residue with a high contamination of specific metals. The substitution of coal by MBM produced ashes with higher content of heavy metals. Secondly, the ashes coming from an industrial power plant working under mono-combustion(coal) and co-combustion conditions (coal+sewage sludge+MBM) were studied. The use of cofuels did not promote significant changes in the chemical and ecotoxicological properties of ashes. Fly ashes were successfully stabilized/solidified in cement mortar, and bottom and circulating ashes were successfully used as raw materials in concrete. The third step involved the characterization and valorization of biomass ashes resulting from the combustion of forestry residues. The highest concentrations of metals/metalloids were found in the lowest particle size fractions of ashes. Biomass ashes successfully substituted cement and natural aggregates in concretes, without compromising their mechanical, chemical, and ecotoxicological properties. Finally, the biomass ashes were tested as chemical agents to remove contaminants from wastewaters. The removal of P, mainly phosphates, and Pb from wastewaters was assayed. Biomass ashes presented a high capacity to remove phosphates. As fly ashes were more efficient in removing phosphates, they were further used to remove Pb from wastewaters. Again, they presented a high efficiency in Pb removal. New potential valorization routes for these ashes are now opened, contributing to improve their valorization rates.
Fundação para a Ciência e a Tecnologia - SFRH/BD/62372/2009 ; European Project “COPOWER
Lebbar, Salim. "Valorisation biologique de co-produits de l'extraction de l'agar issu du Gelidium sesquipedale". Thesis, Limoges, 2018. http://www.theses.fr/2018LIMO0082.
This work aims at promoting the bioactive molecules initially present in Gelidium sesquipedale. The rhodophycea agarophytes, including Gelidium sesquipedale, are used for industrial extraction of agar, a phycocolloid with gelling properties, which they contain in abundance. A multitude of co-products are generated during the extraction of the agar. These co-products have only been studied a little, hence not valued, while they constitute a significant source of molecules of interest. Firstly, the industrial agar extraction process was adapted on a laboratory scale, in order to recover these coproducts, which were subsequently subjected to an analysis, which revealed the presence of carbohydrates as major components. They were submitted to a fractionation process to obtain oligosaccharidic fractions, with a potential of elicitor activity, and a yield estimated at 15.7% of dry Gelidium sesquipedale. Also, a follow-up of co-products from batches of Gelidium sesquipedale harvested in different years from 2014 to 2016, enabled the comparison of the composition of the various co-products, depending on the year of the harvest, and thus to evaluate the variability of the initial resource. In addition, the impact of an extraction factor, being the sodium concentration, and the comparison with an industrial co-product produced by this process, were carried out. The retained fractions were characterized by GPC, ESI-MS, NMR and permethylation that allowed the elucidation of the structures of the oligosaccharides they contain, and revealed in particular the presence of floridoside derivatives including Gal2glycerol, Gal3glycerol and Gal4glycerol, which are original molecules in Gelidium sesquipedale, not described to date in red algae. A final part consisted in measuring the activity of these fractions as elicitor that could be estimated on tomato plants through measurements of biochemical markers relating to the expression of defense reactions in the plant. In conclusion, the co-products from agar extraction represent a source of pSDNs (phyto stimulator of natural defense in the plant) and give a new perspective to the agar industry
Gotico, Philipp. "Stratégies bio-inspirées pour la réduction catalytique et la valorisation du dioxyde de carbone". Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS283/document.
The criticality of global warming urges for the advancement of science to reduce carbon dioxide (CO₂) emissions in the atmosphere. At the heart of this challenge is the development of sustainable catalysts that can help capture, activate, reduce, and eventually valorize CO₂. This PhD work tried to respond to this call by developing molecular mimics inspired by natural systems in the larger scheme of artificial photosynthesis. Firstly, it involved tracking the journey of a photon of visible light and how it is transformed to a reducing power able to reduce CO₂. Secondly, in search for more efficient and stable catalysts, new mimics were synthesized inspired by the exceptional performance of CO dehydrogenase enzymes (CODH) in reducing CO₂. Lastly, further understanding of CODH also led to a proof-of-concept that directly valorizes the photo-produced CO for the synthesis of isotopically-labelled amide bonds, a common motif in pharmaceutically-relevant drugs
Seifi, Sahar. "Conception d'éco-liants et/ou éco-matériaux à partir de cendres volantes papetières et laitier moulu". Thesis, Normandie, 2018. http://www.theses.fr/2018NORMC287/document.
The aim of this thesis is the development of an eco-binder based on industrial co-products : a wastepapery ash and a ground granulated blast-furnace slag, for the manufacture of dry mortars. On the one hand,this eco-binder was developed to replace partially cement as a constituent of traditional materials, andon the other hand to recycle in large quantities one of these two industrial wastes ; wastepaper fly ashwith considering all the notions of circular economy and eco-design. From literature, there are numerousand relevant research works on the different types of ash and slag, highlighting the characteristics, themineralogy, the reactivity of the wastepaper fly ash and ground granulated blast-furnace slags in details.These two co-products with about 20 wt.% SiO2 and 50 wt.% CaO have a chemical composition veryclose to that of a cement and develop pozzolanic properties that can replace those of cement. Theirvalorization as a binder material is then possible. A complete knowledge of the physicochemical, structuraland mineralogical properties of wastepaper fly ash and ground granulated blast-furnace slag led to anexploratory study of formulations for dry mortars. The mixtures containing 72 wt.% of wastepaper fly ashand 28 wt.% of ground granulated blast-furnace slag were investigated with reference to the formulationof a standard mortar to optimize the water content and compaction energy level. A specific equipment forcompacting prismatic specimens with dimensions 4x4x16 cm3 was used. The effect of adding three types ofactivators i.e. calcium chloride CaCl2, sodium metasilicate Na2O3Si and sodium carbonate Na2CO3, anda small amount of cement i.e. 5 wt.% and 10 wt.% was analyzed. The relation between mechanical strengthand the microstructure of the mixtures has been detailed and discussed. Two optimal formulations wereimplemented and, mineralogy, mechanical strength at 2, 7 and 28 days of curing, microstructure withSEM images, pore distributions and durability have been considered and analyzed. Taking into accountthe satisfactory results obtained, a semi-industrial approach to manufacture 15x15x15 cm3 blocks fromthe two selected formulations was conducted and discussed. The first results show a great interest in themanufacture of blocks of pavement and derived products for the construction of pedestrian or reducedtraffic areas
Le, Delliou Benjamin. "Design of poly(3-hydroxybutyrate-co-3-hydroxyvalerate) based films for flexible food packaging in contact with fatty food and under frozen conditions". Electronic Thesis or Diss., université Paris-Saclay, 2021. http://www.theses.fr/2021UPASB033.
The main objective of the present thesis is to design a bio-based and biodegradable packaging material suitable for frozen French fries using the by-products of their fabrication. Two strategies were investigated. The first strategy was the fabrication of polymer blends based on poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), which could be obtained by fermentation of by-products. PHBV-poly(butylene succinate-co-adipate) (PBSA) blends were designed with the aim to increase the processability and ductility of PHBV. Both polymers are immiscible, therefore the interfacial compatibility needed to be optimized. Reactive compatibilization using dicumyle peroxide (DCP) was successful and allowed the fabrication of PHBV/PBSA films by film blowing extrusion at the laboratory scale. The effect of DCP on morphological, thermal, mechanical and rheological properties was evaluated in the aim to optimize the composition at laboratory scale. To improve the mechanical properties of the films, the plasticizer acetyl tri-butyl citrate (ATBC) was used. The improved melt strength and extensional viscosity of the optimized blends allowed to perform a successful film blowing scale-up experiment to the small pilot scale using ATBC and an alternative organic peroxide LUPEROX® 101, both molecules being admitted for food contact materials. The second strategy was the direct use of waste starch and potato peels. For that, the biochemical characterization of potato peels was carried out, and the potential of extraction of high added value molecules coming was assessed. The possibility to produce potato peels and starch-based materials suitable for the fabrication of items with very short service life was investigated
Koçi, Rromir. "Valorisation d'un co-produit d'extraction de l'agar à partir de l'algue rouge Gelidium sesquipedale en tant que stimulateur de défenses de plantes. Caractérisation chimique et évaluation de ses propriétés en vue d'applications en biocontrôle". Electronic Thesis or Diss., Limoges, 2023. http://www.theses.fr/2023LIMO0007.
The industrial by-products of the first step of agar extraction (from red alga Gelidium sesquipedale) constitute large volumes at SETEXAM company that might be valorized. The objective of this work is to prove that they can be used as elicitor, or plant defense stimulator (PDS). Firstly, the elemental composition of the alkaline by-product revealed a mineral content of 44% (Na, K major components) with heavy metal traces, but under authorized limits. The principal organic components detected are carbohydrates (12.5%) and a fraction rich in floridoside was obtained. This molecule was identified with an original method, through GC-MS. The alkaline by-product, recycled through the industrial process, has its carbohydrate content diminished as the number of cycles increases. These by-products, applied on tomato plants grown in greenhouse under biotic stress, are capable of stimulating defense responses (enzymatic activities, gene expression). The optimal dose (50 mg.L-1) was determined together with the application conditions and time span of responses. In field, the by-products were tested on grapevine and on tomato, for their capacity to reduce downy mildew, or leaf mold symptoms. Promising results were obtained compared to already commercialized elicitors, for moderate disease pressure. The by-product obtained from the first step of industrial agar extraction showed a PDS activity and can be a solution for culture defense allowing a reduction of pesticides for a durable and environmentally friendly agriculture. This work is a base for a homologation file of the product that would transform these by-products from cost to resource for the company
Behloul, Chakib Rafik. "Méthodes de conception de réacteurs multifonctionnels (réacteur-échangeur-séparateur) : application à la synthèse directe de DME à partir de CO₂ et d’H₂". Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0249.
The depletion of resources and the accumulation of pollutant gases in the atmosphere are nowadays of growing concern. The current energy transition requires that certain material and energy transformation processes be partially modified or profoundly reconsidered to fit more sustainable operating conditions. Low-carbon electricity and hydrogen can substitute fossil fuels, leading to an energy mix with a low greenhouse gas (GHG) footprint. In addition to hydrogen, the production of alternative fuels and high value-added products is another way to support the energy transition.Looking for optimal, sustainable and economical processes is therefore a major challenge that process engineers are facing. The present work has thus focused on the intensification of mass and energy transformation processes, through multifunctional units, which take advantage of the synergies between elementary functions of transformation (reaction, transfer, separation, etc.) within an intensive equipment. The concept of multifunctional reactors, coupling several elementary functions, has been a real success when historical demonstrators were created (Eastman-Kodak process, etc.), but their implementation has not been generalized, due to a lack of practical design methodology.This work focuses on the implementation of some intensification methodologies to understand and improve the performance of a process involving balanced exothermic reactions. The dimethyl ether (DME) direct synthesis from CO₂ and H₂ is considered as a case study. Different exploratory ways for the DME direct synthesis process development have been investigated based on modeling and simulation. Reactor- Heat exchanger, multifunctional reactor (reactor-heat exchanger-membrane separator), hybrid elementary block processes and a process involving the cooled reactor in a conventional process environment in the presence of additional unit operations and recycle loop are studied from different angles. Different optimization cases and strategies have been addressed which differ by the decision variables and the solving method. The different methodologies applied have demonstrated the relevance of the solutions obtained and the opening towards process innovation.At the equipment level, the profiles optimization represents the heart of the methodology. The results demonstrate the potential of multifunctional reactors: a CO₂ conversion per pass of 98%, a DME yield of 95% and the possibility to remove a distillation column are obtained. In order to assess the maximum achievable performance in a multifunctional reactor, a hybrid process of elementary blocks has been optimized. At the process scale, the reactor behavior has been studied to further understand the impact of the reactor integration in a recycle loop and to estimate the local and global effects on the multiple performance criteria. Based on various criteria (overall DME yield, overall CO₂ conversion, TRL, etc.), the comparison of the different designs revealed that a reduction of the equipment number by a factor of 11 is possible in the case of a multi-functional reactor choice
Libri sul tema "CO₂ valorization":
Simal-Gandara, Jesus, Tripti Agarwal, Mahnaz Esteki, Andrea Gomez-Zavaglia e Jianbo Xiao. Re-valorization of Food Losses and Food Co-products. Frontier Media SA, 2021. http://dx.doi.org/10.3389/978-2-88971-873-3.
Capitoli di libri sul tema "CO₂ valorization":
Aspevik, Tone, Åge Oterhals, Sissel Beate Rønning, Themistoklis Altintzoglou, Sileshi Gizachew Wubshet, Asbjørn Gildberg, Nils Kristian Afseth, Ragnhild Dragøy Whitaker e Diana Lindberg. "Valorization of Proteins from Co- and By-Products from the Fish and Meat Industry". In Topics in Current Chemistry Collections, 123–50. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-90653-9_5.
Németh, Károly. "Volcanic Geoheritage in the Light of Volcano Geology". In Geoheritage, Geoparks and Geotourism, 1–24. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-07289-5_1.
Bejarano Pérez, Jenny Viviana, Jessica Tatiana Mancera Cifuentes, Patricia Joyce Pamela Zorro Mateus e Henry Isaac Castro Vargas. "Recovery of Phenolic Antioxidants from Isabella Grape (Vitis labrusca L.) Pomace Using Supercritical Carbon Dioxide with Added Ethanol as Co-Solvent". In Towards Sustainability in the Wine Industry by Valorization of Waste Products, 45–63. Boca Raton: CRC Press, 2023. http://dx.doi.org/10.1201/9781003391593-4.
Aspevik, Tone, Åge Oterhals, Sissel Beate Rønnin, Themistoklis Altintzoglou, Sileshi Gizachew Wubshe, Asbjørn Gildberg, Nils Kristian Afseth, Ragnhild Dragøy Whitaker e Diana Lindberg. "Erratum to: Valorization of Proteins from Co- and By-Products from the Fish and Meat Industry". In Topics in Current Chemistry Collections, 283. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-90653-9_9.
Scrucca, Flavio, Antonella Rotili, Andrea Presciutti, Francesco Fantozzi, Pietro Bartocci e Mauro Zampilli. "Energy Valorization of Bio-glycerol: Carbon Footprint of Co-pyrolysis Process of Crude Glycerol in a CHP Plant". In Carbon Footprints, 19–46. Singapore: Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-13-7912-3_2.
Subramanian, Dhanya Mecherivalappil, e Sneh Lata. "Microbial Reclamation of Pulp and Paper-Making Industry Wastewater: Electricity Generation, Value Added Co-Product Recovery and Waste Valorization". In Microbial Technologies for Wastewater Recycling and Management, 211–20. Boca Raton: CRC Press, 2022. http://dx.doi.org/10.1201/9781003231738-15.
Flores, Glenda M. "Co-ethnic Cultural Guardianship". In Latina Teachers. NYU Press, 2017. http://dx.doi.org/10.18574/nyu/9781479839070.003.0005.
Sfodera, Fabiola, e Alessio Di Leo. "Co-creation of value - Valorization of local identity through creative tourism". In The Sharing Economy and the Tourism Industry. Goodfellow Publishers, 2022. http://dx.doi.org/10.23912/9781915097064-5117.
Yongsawatdigul, Jirawat, e Ali Hamzeh. "Bioactive Peptides from Agriculture and Food Industry Co-Products: Peptide Structure and Health Benefits". In Innovation in the Food Sector Through the Valorization of Food and Agro-Food By-Products. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.94959.
Velasquez-Orta, S. B. "Algae for wastewater treatment and biofuel production". In Algal Systems for Resource Recovery from Waste and Wastewater, 171–80. IWA Publishing, 2023. http://dx.doi.org/10.2166/9781789063547_0171.
Atti di convegni sul tema "CO₂ valorization":
Rassai, Nadia, e Noureddine Boutammachte. "Valorization of straw waste by co-firing coal and straw in swirling stabilized burner". In SCA '18: 3rd International Conference on Smart City Applications. New York, NY, USA: ACM, 2018. http://dx.doi.org/10.1145/3286606.3286809.
Jiang, Dennis, Xiaomeng Wang, Dareen Hallak, Adam Leece e Travis Hobbs. "Valorization of Duvernay and Montney flowback & produced water: CO2 mineralization and lithium extraction". In Goldschmidt2023. France: European Association of Geochemistry, 2023. http://dx.doi.org/10.7185/gold2023.13898.
Castro, Alexandra, Cândida Vilarinho, Jorge Araújo e Joana Carvalho. "Recovery of Paper Fibers From TetraPak® Packaging: Material and Energetic Valorization of the Remaining Fraction". In ASME 2014 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/imece2014-38880.
Vilarinho, Cândida, André Ribeiro, Joana Carvalho, Jorge Araújo, Manuel Eduardo Ferreira e José Teixeira. "Development of a Methodology for Paint Dust Waste Energetic Valorization Through RDF Production". In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71979.
Ghosh, Saugata, Ramesh Timsina e Britt Moldestad. "Study of gasification behavior for a biorefinery lignin waste in a fluidized bed gasification reactor". In 63rd International Conference of Scandinavian Simulation Society, SIMS 2022, Trondheim, Norway, September 20-21, 2022. Linköping University Electronic Press, 2022. http://dx.doi.org/10.3384/ecp192042.
Ribeiro, A., C. Vilarinho, J. Araújo e J. Carvalho. "Refuse Derived Fuel (RDF) Gasification Using Different Gasifying Agents". In ASME 2017 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/imece2017-71268.