Results 91 to 100 of about 387,390 (249)

Deoxygenation of Fatty Acids in Supercritical Hexane over Bimetallic Catalyst for Biodiesel Production

Chemical Engineering Transactions, 2019
Deoxygenation process is considered to be a promising way to produce the second generation of biodiesel. The main drawbacks of this process are high temperature, high reaction time and the necessity in hydrogen presence aimed at the formation of ...
Antonina A. Stepacheva, Valentina G. Matveeva, Mikhail G. Sulman, Esther M. Sulman   +3 more
doaj   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo, Vincenzo Patamia, Chiara Zagni, Antonio Rescifina, Giuseppe Floresta   +4 more
wiley   +1 more source

Redox Biocatalysis in Lidocaine‐Based Hydrophobic Deep Eutectic Solvents: Non‐Conventional Media Outperform Aqueous Conditions

ChemSusChem, Volume 18, Issue 6, March 15, 2025.
Two hydrophobic DESs, lidocaine/oleic acid and lidocaine/decanoic acid, were utilized as reaction media that were enzyme‐compatible and highly substrate‐solubilizer for carbonyl reduction catalyzed by horse liver alcohol dehydrogenase, focusing on the effect of water contents and on maximizing substrate loadings, which showcases for the first time the ...
Ningning Zhang, Viktoria Lahmann, Jan Philipp Bittner, Pablo Domínguez de María, Sven Jakobtorweihen, Irina Smirnova, Selin Kara   +6 more
wiley   +1 more source

Rock mechanical properties under reconstructed deep in situ thermo–hydro–mechanical conditions: Implications for CO₂‐related injection scenarios

Deep Underground Science and Engineering, EarlyView.
The graphical abstract illustrates a reconstructed in situ thermo‐hydro‐mechanical (THM) framework in which porosity serves as the central variable linking stress, pore pressure, and temperature to evolving mechanical properties of rocks. Under burial conditions, in situ stress, pore pressure, and temperature jointly govern volumetric strain and ...
Mingyuan Lu, Jun Wang, Zixiong Qi, Ruixuan Chen, Hongtao Wang, Hongwei Zhou   +5 more
wiley   +1 more source

Continuous Production of Biodiesel with Supercritical Methanol: a Simple Compressible Flow Model for Tubular Reactors [PDF]

, 2011
From an industrial point of view, the continuous process for biodiesel production with supercritical methanol (SCM) is more appropriate than the batch process.
Sawangkeaw, Ruengwit, Somkiat, Ngamprasertsith, Kunchana, Bunyakiat, Ruengwit Sawangkeaw, Witsanee Satayanon, Camy, Séverine, Witsanee, Satayanon, Séverine Camy, Somkiat Ngamprasertsith, Condoret, Jean-Stéphane, Kunchana Bunyakiat, Jean-Stéphane Condoret   +11 more
core   +1 more source

Combination of CO 2 ${\text{CO}}_{2}$ storage and geothermal energy production in porous and fractured superhot geothermal systems

Deep Underground Science and Engineering, EarlyView.
The graphical abstract depicts the workflow for porous‐ and fractured‐media simulations, where stochastically generated discrete natural fractures are required for the fracture‐media simulation. Abstract CO 2 ${\text{CO}}_{2}$ leakage is one of the main risks and barriers to geologic carbon storage. However, under the high‐temperature and high‐pressure
Christoph Scherounigg, Rotman Criollo, Victor Vilarrasa, Keita Yoshioka   +3 more
wiley   +1 more source

Integrated numerical simulation and source‐sink matching methodology for Basin‐Wide CO2 storage assessment in depleted reservoirs: A Cambay Basin case study

Deep Underground Science and Engineering, EarlyView.
This study presents an integrated workflow to evaluate secure and large‐scale CO2 storage in depleted oil reservoirs of the Cambay Basin, India. Industrial CO2 sources are systematically matched with mature oil fields using a quantitative source–sink framework to minimize transport distance and cost.
Bhaskarjyoti Khanikar
wiley   +1 more source

Supercritical Extraction Of Coumarin From Guaco (mikania Laevigata And Mikania Glomerata) For Pharmaceutical Applications

, 2015
Guaco has several applications in the chemical and pharmaceutical industries. This plant is a source of coumarin, a diterpene compound with expectorants properties.
Pozza L.N.L., Vicente E., Oliveira A.L., Kamimura E.S., Cabral F.A., Santos D.N.   +5 more
core   +1 more source

Dynamic modelling of a fractionation process for a liquid mixture using supercritical carbon dioxide [PDF]

, 2001
This work presents a simple dynamic modelling of a process of separation of a quaternary mixture using supercritical CO2. Thermodynamic description is accomplished using efficient available models (SRK equation of state with MHV2 mixing rules).
Camy, Séverine, Séverine Camy, Condoret, Jean-Stéphane, Jean-Stéphane Condoret   +3 more
core   +1 more source

Geological carbon dioxide storage in the German North Sea: Static‐to‐dynamic capacity refinement for a 10 Mt/y injection scenario

Deep Underground Science and Engineering, EarlyView.
This study assesses whether a saline aquifer in the German North Sea can sustain industrial‐scale CO2 injection at 10 Mt/year over 30 years. A 3D reservoir model is used to compare static capacity with dynamically achievable storage. The work links site‐scale injection strategy design with basin‐scale pressure response, providing a framework for ...
Firdovsi Gasanzade, Sebastian Bauer
wiley   +1 more source