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Influence of CO Treatment Pressure on the Chemical Composition and Rheological Properties of Degassed Waxy Crude Oil.
ACS Omega
December 2024
College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, Shandong 266580, People's Republic of China.
With the gradual application of enhanced oil recovery by CO (CO-EOR), the rheological behavior of produced fluid is altered due to CO dissolution and degassing. This work focuses on the composition, physical properties, gelation and yield characteristics, and viscosity-temperature properties of crude oil containing paraffinic wax after CO treatment. Special attention is given to the effect of the phase state of CO.
View Article and Find Full Text PDFGas-Water Distribution and Gas Reservoirs Accumulation Properties of Upper Paleozoic Sequence in the Western Yishan Slope, Ordos Basin, NW China.
ACS Omega
December 2024
Gas Field Company, Shaanxi Yanchang Petroleum (Group) Co., Ltd., Yan'an 716000, China.
Gas-water distribution is significant in the determination of hydrocarbon accumulation mechanisms in gas reservoirs, especially for the exploitation of tight sandstone reservoirs. One of such examples are the gas reservoirs in the Yishan Slope in China, where the internal relationship between gas-water distribution is poorly understood. The pattern and controlling factors for gas-water distribution in tight sandstones gas reservoirs in the Yishan Slope have been examined from macro (such as sedimentary and anticlinal structures) and micro (such as pore throat size, heterogeneity) perspectives, using data from rock eval pyrolysis, sedimentary structure, sediment diagenesis, gas migration, mercury injection experiments, and well logs.
View Article and Find Full Text PDFHydration and carbonation curing of high ferrite clinker (FePC) synthesized using EAF slag.
Low Carbon Mater Green Constr
December 2024
Faculty of Technology, Fiber and Particle Engineering Research Unit, University of Oulu, PO Box 4300, 90014 Oulu, Finland.
Unlabelled: This study explores the use of Electric Arc Furnace (EAF) slag as a sustainable alternative raw material in cement clinker production. The research demonstrates the synthesis of ferrite-rich clinker using EAF slag, achieving a clinker composition of 47% alite, 32% ferrite, and 20% belite while replacing 20% of clinker raw materials i.e.
View Article and Find Full Text PDFEquilibrium of monomers, dimers, and polymeric aggregates in the α-aryl-propionic acid-type analgesics naproxen, ketoprofen, and ibuprofen: Comparative study with oxicam-type meloxicam and piroxicam.
Int J Pharm
January 2025
Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
Hydrophobicity is associated with drug transport across membranes and is expressed as the partition coefficient log P for neutral drugs and the distribution coefficient log D for acidic and basic drugs. The log P and log D predictions are deductively (or with artificial intelligence) estimated as the sum of the partial contributions of the scaffold and substituents of a single molecule and are used widely and affirmatively. However, their predictions have not always been comprehensively accurate beyond scaffold differences.
View Article and Find Full Text PDFUnveiling the potential of pullulan in enhancing ketoprofen release from PHBV filaments.
Int J Biol Macromol
January 2025
Chemical Engineering Department, Engineering School of Lorena, University of São Paulo, Lorena, São Paulo, Brazil. Electronic address:
In this study, sustainable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) and pullulan (PUL)/PHBV filaments were prepared with ketoprofen for scaffold preparation. The research aimed evaluate the influence of pullulan in the filament properties, such as thermal, morphological, and biological behavior. Hansen parameters demonstrated the difference in the miscibility of the polymers and drug in the blend.
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