Physiological effects of mixed-gas deep sea dives using a closed-circuit rebreather: a field pilot study.
Sign Up to like & getrecommendations! Published in 2021 at "European journal of applied physiology"
DOI: 10.1007/s00421-021-04798-y
Abstract: PURPOSE Deep diving using mixed gas with closed-circuit rebreathers (CCRs) is increasingly common. However, data regarding the effects of these dives are still scarce. This preliminary field study aimed at evaluating the acute effects of… read more here.
Keywords: closed circuit; sea; field; gas ... See more keywords
Reduction of Sn-Bearing Iron Concentrate with Mixed H2/CO Gas for Preparation of Sn-Enriched Direct Reduced Iron
Sign Up to like & getrecommendations! Published in 2017 at "Metallurgical and Materials Transactions B"
DOI: 10.1007/s11663-017-0939-3
Abstract: The development of manufacturing technology of Sn-bearing stainless steel inspires a novel concept for using Sn-bearing complex iron ore via reduction with mixed H2/CO gas to prepare Sn-enriched direct reduced iron (DRI). The thermodynamic analysis… read more here.
Keywords: reduction; pct; mixed gas; iron ... See more keywords
The effect of pressure and mixed gas composition on humid CO2 and hydrocarbons permeation in Aquivion® PFSA
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2018.08.048
Abstract: Abstract In this work an E87-12S Aquivion® short side chain perfluorosulfonic acid membrane, produced by Solvay Specialty Polymers, has been studied for natural gas sweetening applications. The experimental activity has been focused on the effect… read more here.
Keywords: permeation; gas; effect; mixed gas ... See more keywords
Quantification of sorption, diffusion, and plasticization properties of cellulose triacetate films under mixed-gas CO2/CH4 environment
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2020.118269
Abstract: Abstract Membrane technology is employed in large-scale removal of acid gases from natural gas, and cellulose acetate is by far the most adopted material for this application. Because of its utmost industrial relevance, we analyzed… read more here.
Keywords: diffusion; gas; mixed gas; solubility ... See more keywords
Competitive sorption in CO2/CH4 separations: the case of HAB-6FDA polyimide and its TR derivative and a general analysis of its impact on the selectivity of glassy polymers at multicomponent conditions
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Membrane Science"
DOI: 10.1016/j.memsci.2020.118374
Abstract: Abstract CO2 and CH4 mixed-gas solubility was measured in 3,3′-dihydroxy-4,4′-diamino-biphenyl (HAB) 2,2′-bis-(3,4-dicarboxyphenyl) hexafluoropropane dianhydride (6FDA) polyimide and in its thermally rearranged (TR) derivative, TR450. Due to competitive sorption effects, the solubility of both species in… read more here.
Keywords: mixed gas; sorption; gas; co2 ch4 ... See more keywords
Block copolyimide membranes for pure- and mixed-gas separation
Sign Up to like & getrecommendations! Published in 2017 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2016.09.024
Abstract: Abstract A series of aromatic random and multiblock co-polyimides with varying block length was prepared from 2,2′-bis-(3,4-dicarboxyphenyl) hexafluoropropane dianhydride with m -phenylenediamine (6FDA-mPDA) and 2,3,5,6-tetramethyl-1,4-phenylenediamine (6FDA-durene). The permeability coefficients of pure gases (CO 2 ,… read more here.
Keywords: block; gas; permeability; mixed gas ... See more keywords
Effect of pendent bulky groups on pure- and sour mixed-gas permeation properties of triphenylamine-based polyimides
Sign Up to like & getrecommendations! Published in 2019 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2019.115713
Abstract: Abstract Three diamine triphenylamine-based monomers, 4,4′-diaminotriphenylamine (TPA), 4,4′-diamino-4″-(dimethylamino)triphenylamine (TPA(NMe2)), and 4,4′-diamino-4″-(tert-butyl)triphenylamine (TPA(t-Bu)) were reproduced in preparation for their 6FDA-based homopolyimides: 6FDA-TPA, 6FDA-TPA(NMe2) and 6FDA-TPA(t-Bu). The bulkiness effect of two pendent groups (dimethylamino and tert-butyl) on… read more here.
Keywords: gas; 6fda tpa; mixed gas; bulky ... See more keywords
Sour mixed-gas upper bounds of glassy polymeric membranes
Sign Up to like & getrecommendations! Published in 2021 at "Separation and Purification Technology"
DOI: 10.1016/j.seppur.2021.119535
Abstract: Abstract Polymeric membranes prepared from glassy polymers suffer from a permeability-selectivity trade-off relationship. When their permeability is increased, their selectivity decreases, and vice versa. The performance of membranes during pure-gas permeation is assessed by plotting… read more here.
Keywords: gas upper; sour mixed; polymeric membranes; upper bounds ... See more keywords
Monte Carlo Simulations of Pure and Mixed Gas Solubilities of CO2 and CH4 in Nonideal Ionic Liquid–Ionic Liquid Mixtures
Sign Up to like & getrecommendations! Published in 2019 at "Industrial & Engineering Chemistry Research"
DOI: 10.1021/acs.iecr.9b03384
Abstract: The knowledge of mixed gas solubility in ionic liquids at high pressures, which becomes relevant in applications such as tertiary oil recovery and landfill gas utilization, is critical for the design of gas separation technologies.… read more here.
Keywords: gas; ionic liquid; mixed gas; liquid mixtures ... See more keywords
Simultaneous Detection of Mixed-Gas Components by Ionic-Gel Sensors with Multiple Electrodes.
Sign Up to like & getrecommendations! Published in 2022 at "ACS sensors"
DOI: 10.1021/acssensors.1c02721
Abstract: The sensing of gas components in a mixed gas is required for breath-based health monitoring and diagnosis. In this work, we report the simultaneous detection of mixed-gas components using a sensor consisting of [EMIM][BF4]-based ionic… read more here.
Keywords: gas; mixed gas; ionic gel; detection mixed ... See more keywords
Highly Sensitive Oxygen Sensing Characteristics Observed in IGZO Based Gasistor in a Mixed Gas Ambient at Room Temperature.
Sign Up to like & getrecommendations! Published in 2022 at "ACS sensors"
DOI: 10.1021/acssensors.2c00484
Abstract: Oxygen (O2) sensing in trace amounts and mixed gas is essential in many types of industries. Semiconductor sensors have proven to be invaluable tools for the O2 measurements in a wide concentration range, but the… read more here.
Keywords: gas; proposed device; oxygen sensing; mixed gas ... See more keywords