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Journal articles on the topic 'Alcohol dehydration'

Author: Grafiati

Published: 4 June 2021

Last updated: 6 February 2022

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1

Kostetskyy, Pavlo, Nicholas Athanasis Zervoudis, and Giannis Mpourmpakis. "Carboranes: the strongest Brønsted acids in alcohol dehydration." Catalysis Science & Technology 7, no. 10 (2017): 2001–11. http://dx.doi.org/10.1039/c7cy00458c.

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2

Budimarwanti, C., and Karim Theresih. "SYNTHESIS OF AMYL VANILLIL ETHER AS WARMING AGENT FROM VANILLIN." Jurnal Sains Dasar 4, no. 2 (May 20, 2016): 100. http://dx.doi.org/10.21831/jsd.v4i2.9084.

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Synthesis of amyl vanillyl ether from vanillin was carried out by two different methods, two-steps reaction method and one-step reaction method. In two-steps reaction method beginning with the first stage reduction of vanillin with NaBH4 to obtain vanillyl alcohol. Then, dehydration vanillyl alcohol and amyl alcohol with concentrated sulfuric acid. Synthesized compound were identification by TLC, IR spectroscopy and GCMS. In one step reaction method the vanillyl alcohol as a result of reduction of vanillin with NaBH4 are not isolated in advance, immediately reacted with amyl alcohol to form amyl vanillyl ether compound with concentrated HCl dehydrator. The results of two-steps reaction method showed that the reduction reaction of vanillin with NaBH4 produced vanillyl alcohol. Vanillyl alcohol compound that produced is white powder and yield 41.28%. Vanillyl amyl ether compound could not synthesis by dehydration from vanillyll alcohol from reduction of vanillin and amyl alcohol. Ether compound from dehydration of vanillyl alcohol from reduction of vanillin and amyl alcohol is diamyl ethers. Method one reaction step successfully synthesized amyl vanilil ether compound. Amyl vanilil ether compound that produced is liquid, colorless and yield 86.42%. Keywords: amyl vanillil ether, vanillin, vanillil alcohol, amyl alcohol

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3

Volynskii, N. P., S. E. Shevchenko, and A. I. Nekhaev. "Dehydration of ethyl alcohol." Russian Journal of General Chemistry 79, no. 2 (February 2009): 326–27. http://dx.doi.org/10.1134/s1070363209020273.

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4

Luy, J. C., and J. M. Parera. "Acidity control in alcohol dehydration." Applied Catalysis 26 (January 1986): 295–304. http://dx.doi.org/10.1016/s0166-9834(00)82559-2.

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5

Klemm, W. R. "Dehydration: A new alcohol theory." Alcohol 7, no. 1 (January 1990): 49–59. http://dx.doi.org/10.1016/0741-8329(90)90060-p.

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6

Kittur, Arjumandbanu Abdulwahab, Gattumane Motappa Madhu, Sudhina Hulagurmath Rashmi, Sowmya Surapanhalli Rajanna, and Naveenkumar Ashok Yaranal. "Polymeric Nanocomposites for Dehydration of Isopropyl Alcohol–Water Mixtures by Pervaporation." Chemistry & Chemical Technology 12, no. 3 (September 15, 2018): 310–17. http://dx.doi.org/10.23939/chcht12.03.310.

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7

Gnus, Małgorzata, Gabriela Dudek, Roman Turczyn, Artur Tórz, Dorota Łącka, Mieczysław Łapkowski, and Krystyna Konieczny. "PERVAPORATIVE INVESTIGATION OF ETHYL ALCOHOL DEHYDRATION." Progress on Chemistry and application of Chitin and its Derivatives XX (September 30, 2015): 54–63. http://dx.doi.org/10.15259/pcacd.20.05.

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8

Kraetz, L. "Dehydration of alcohol fuels by pervaporation." Desalination 70, no. 1 (1988): 487. http://dx.doi.org/10.1016/0011-9164(88)85036-7.

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9

Kraetz, L. "Dehydration of alcohol fuels by pervaporation." Desalination 70, no. 1-3 (November 1988): 481–85. http://dx.doi.org/10.1016/0011-9164(88)85075-6.

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10

Larsen, Gustavo, Edgar Lotero, Lucı́a M. Petkovic, and David S. Shobe. "Alcohol Dehydration Reactions over Tungstated Zirconia Catalysts." Journal of Catalysis 169, no. 1 (July 1997): 67–75. http://dx.doi.org/10.1006/jcat.1997.1698.

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11

SWECKER, J. "Alcohol dehydration over model nonporous alumina powder." Journal of Catalysis 121, no. 1 (January 1990): 196–201. http://dx.doi.org/10.1016/0021-9517(90)90229-d.

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12

Coba Raquel, Flores Linda, Arellano Alberto Riofrío Luis, and Brito Hanníbal. "Design of a Dehydration Tower for the Obtaining of Alcohol Anhídro." International Journal of Current Research and Academic Review 7, no. 4 (April 20, 2019): 1–6. http://dx.doi.org/10.20546/ijcrar.2019.704.001.

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The design of a dehydration tower was carried out in order to obtain anhydrous ethyl alcohol of high degree of purity by adsorption with molecular sieves, for which, we proceeded to identify the process variables by laboratory tests varying the temperature and pressure in the feeding to the molecular sieve, with these data and the flow of feeding proceeded with the design of the dehydrator, determining the variables of the equipment (diameter, volume, internal bed, flow of feeding), as well as additional devices such as a preheater that works with a temperature of 120 ºC, which is essential to increase the enthalpy of the steam, and a condenser fed with water at a temperature of 25 ºC, which makes it possible to transform the anhydrous alcohol from vapor to liquid, having a yield of 86.6% and an efficiency of 92,9%, values that help to have an alcohol of 99,5% by weight in a time of 20 minutes.

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13

Kunz, Larissa Y., Lintao Bu, Brandon C. Knott, Cong Liu, Mark R. Nimlos, Rajeev S. Assary, Larry A. Curtiss, David J. Robichaud, and Seonah Kim. "Theoretical Determination of Size Effects in Zeolite-Catalyzed Alcohol Dehydration." Catalysts 9, no. 9 (August 21, 2019): 700. http://dx.doi.org/10.3390/catal9090700.

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In the upgrading of biomass pyrolysis vapors to hydrocarbons, dehydration accomplishes a primary objective of removing oxygen, and acidic zeolites represent promising catalysts for the dehydration reaction. Here, we utilized density functional theory calculations to estimate adsorption energetics and intrinsic kinetics of alcohol dehydration over H-ZSM-5, H-BEA, and H-AEL zeolites. The ONIOM (our Own N-layered Integrated molecular Orbital and molecular Mechanics) calculations of adsorption energies were observed to be inconsistent when benchmarked against QM (Quantum Mechanical)/Hartree–Fock and periodic boundary condition calculations. However, reaction coordinate calculations of adsorbed species and transition states were consistent across all levels considered. Comparison of ethanol, isopropanol (IPA), and tert-amyl alcohol (TAA) over these three zeolites allowed for a detailed examination of how confinement impacts on reaction mechanisms and kinetics. The TAA, seen to proceed via a carbocationic mechanism, was found to have the lowest activation barrier, followed by IPA and then ethanol, both of which dehydrate via a concerted mechanism. Barriers in H-BEA were consistently found to be lower than in H-ZSM-5 and H-AEL, attributed to late transition states and either elevated strain or inaccurately estimating long-range electrostatic interactions in H-AEL, respectively. Molecular dynamics simulations revealed that the diffusivity of these three alcohols in H-ZSM-5 were significantly overestimated by Knudsen diffusion, which will complicate experimental efforts to develop a kinetic model for catalytic fast pyrolysis.

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14

Zhuang, Quan, and Jack M. Miller. "Sol-gel synthesis of ternary phosphate-ZrO2-SiO2 catalysts for alcohol dehydration." Canadian Journal of Chemistry 79, no. 8 (August 1, 2001): 1224–28. http://dx.doi.org/10.1139/v01-108.

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PhosphateZrO2Si2O catalysts were synthesized by sol-gel method using tributyl phosphite, zirconium propoxide, and tetraethyl orthosilicate as precursors. They were characterized by N2 adsorption, 31P CP MAS NMR, and DRIFTS. At lower P content, monomeric phosphates were formed on the surface of the catalysts, which were mainly responsible for the isopropanol dehydration activity. At higher P content, polyphosphates were formed, and thus, the dehydration activity decreased. An optimum P content for dehydration activity was found to be at 10 mol%.Key words: sol-gel synthesis, ternary oxides, phosphate, acid catalyst, alcohol dehydration, 31P CP MAS NMR, N2 adsorption, DRIFTS.

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15

Lamarine, Roland J. "Dehydration, Rehydration, and Hyponatremia." Californian Journal of Health Promotion 1, no. 1 (March 1, 2003): 46–48. http://dx.doi.org/10.32398/cjhp.v1i1.1660.

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Current health culture suggests that sedentary individuals should be consuming at least eight, eight ounce glasses of water each day. This injunction further stipulates that the water requirement cannot be adequately met by consumption of sweetened, caffeinated, or alcohol containing fluids. An additional concern is that thirst may not serve as an adequate early indicator of hydration needs. These propositions are reviewed in light of current research findings and suggestions are submitted for appropriate emendation of these rules.

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16

Lamarine, Roland J. "Dehydration, Rehydration, and Hyponatremia." Californian Journal of Health Promotion 1, no. 1 (March 1, 2003): 46–48. http://dx.doi.org/10.32398/cjhp.v1i1.379.

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Current health culture suggests that sedentary individuals should be consuming at least eight, eight ounce glasses of water each day. This injunction further stipulates that the water requirement cannot be adequately met by consumption of sweetened, caffeinated, or alcohol containing fluids. An additional concern is that thirst may not serve as an adequate early indicator of hydration needs. These propositions are reviewed in light of current research findings and suggestions are submitted for appropriate emendation of these rules.

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17

Lisunova, Milana O. "Dehydration Sensing of a Polyvinyl Alcohol Film via Plasmonic Nanoparticles." MRS Advances 4, no. 5-6 (2019): 299–304. http://dx.doi.org/10.1557/adv.2019.58.

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ABSTRACTIn situ, real-time monitoring of a dehydration of poly(vinyl alcohol) (PVA) film is researched. The technique based on the incorporation plasmonic nanocages (NCs) between the two identical layers of PVA, (PVA)/NCs/(PVA) film, and its sensitivity to the variation of the refractive index of the surrounding PVA film via desorption water. The dehydration time increases from 180 (s) to 1800 (s) as the content of the PVA in the films increases twice, from (PVA)/NCs/(PVA) to (PVA)2/NCs/(PVA)2. Such effect could be explained by different rate of the molecules desorption from the PVA based films. Specifically, the dehydration rate is of 0.22 (vol% per s) and 0.026 (vol% per s) for (PVA)/NCs/(PVA) and (PVA)2/NCs/(PVA)2 films, respectively. The dehydration rate constant reduces from -50×10-4 (s-1) to -4.3 ×10-4 (s-1) as the content of PVA increases from (PVA)/NCs/(PVA) to (PVA)2/NCs/(PVA)2 films, respectively.

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18

Ahmad, Jamil, and K. Brian Astin. "Influencing reactivity by monolayer compression: an alcohol dehydration." Journal of the American Chemical Society 110, no. 24 (November 1988): 8175–78. http://dx.doi.org/10.1021/ja00232a033.

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19

Abella, Leonila C., Pag-asa D. Gaspillo, Hajime Itoh, and Shigeo Goto. "Dehydration of tert-Butyl Alcohol in Reactive Distillation." JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 32, no. 6 (1999): 742–46. http://dx.doi.org/10.1252/jcej.32.742.

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20

Roy, Sounak, Giannis Mpourmpakis, Do-Young Hong, Dionisios G. Vlachos, A. Bhan, and R. J. Gorte. "Mechanistic Study of Alcohol Dehydration on γ-Al2O3." ACS Catalysis 2, no. 9 (July 30, 2012): 1846–53. http://dx.doi.org/10.1021/cs300176d.

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21

Fahim, R. B. "Dehydration of ethyl alcohol on alumina-coated silica." Journal of Applied Chemistry 19, no. 12 (May 4, 2007): 356–58. http://dx.doi.org/10.1002/jctb.5010191205.

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22

Kostestkyy, Pavlo, Jingye Yu, Raymond J. Gorte, and Giannis Mpourmpakis. "Structure–activity relationships on metal-oxides: alcohol dehydration." Catal. Sci. Technol. 4, no. 11 (June 11, 2014): 3861–69. http://dx.doi.org/10.1039/c4cy00632a.

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23

Luyben, William L. "Plantwide control of an isopropyl alcohol dehydration process." AIChE Journal 52, no. 6 (June 2006): 2290–96. http://dx.doi.org/10.1002/aic.10807.

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24

Shaikh, Melad, Mahendra Sahu, Santimoy Khilari, Atyam Kiran Kumar, Pathik Maji, and Kalluri V. S. Ranganath. "Surface modification of polyhedral nanocrystalline MgO with imidazolium carboxylates for dehydration reactions: a new approach." RSC Advances 6, no. 86 (2016): 82591–95. http://dx.doi.org/10.1039/c6ra16358k.

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The surface of nanocrystalline MgO was modified with achiral and chiral imidazolium carboxylates which generate MgO–[NHC] complexes. Thus as synthesized complexes were utilized in the dehydration of glucose and also in selective dehydration of (±) nitro alcohol.

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25

Marosz, Monika, Bogdan Samojeden, Andrzej Kowalczyk, Małgorzata Rutkowska, Monika Motak, Urbano Díaz, Antonio E. Palomares, and Lucjan Chmielarz. "MCM-22, MCM-36, and ITQ-2 Zeolites with Different Si/Al Molar Ratios as Effective Catalysts of Methanol and Ethanol Dehydration." Materials 13, no. 10 (May 22, 2020): 2399. http://dx.doi.org/10.3390/ma13102399.

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MCM-22, MCM-36, and ITQ-2 zeolites with the intended Si/Al molar ratios of 15, 25, and 50 were synthetized and tested as catalysts for dehydration of methanol to dimethyl ether and dehydration of ethanol to diethyl ether and ethylene. The surface concentration of acid sites was regulated by the synthesis of zeolite precursors with different aluminum content in the zeolite framework, while the influence of porous structure on the overall efficiency of alcohol conversion was analyzed by application of zeolitic materials with different types of porosity—microporous MCM-22 as well as microporous-mesoporous MCM-36 and ITQ-2. The zeolitic samples were characterized with respect to their: chemical composition (ICP-OES), structure (XRD, FT-IR), texture (N2 sorption), and surface acidity (NH3-TPD). Comparison of the catalytic activity of the studied zeolitic catalysts with other reported catalytic systems, including zeolites with the similar Si/Al ratio as well as γ-Al2O3 (one of the commercial catalysts for methanol dehydration), shows a great potential of MCM-22, MCM-36, and ITQ-2 in the reactions of alcohols dehydration.

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26

Shirreffs, Susan M., and Ronald J. Maughan. "Restoration of fluid balance after exercise-induced dehydration: effects of alcohol consumption." Journal of Applied Physiology 83, no. 4 (October 1, 1997): 1152–58. http://dx.doi.org/10.1152/jappl.1997.83.4.1152.

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Shirreffs, Susan M., and Ronald J Maughan. Restoration of fluid balance after exercise-induced dehydration: effects of alcohol consumption. J. Appl. Physiol. 83(4): 1152–1158, 1997.—The effect of alcohol consumption on the restoration of fluid and electrolyte balance after exercise-induced dehydration [2.01 ± 0.10% (SD) of body mass] was investigated. Drinks containing 0, 1, 2, and 4% alcohol were consumed over 60 min beginning 30 min after the end of exercise; a different beverage was consumed in each of four trials. The volume consumed (2,212 ± 153 ml) was equivalent to 150% of body mass loss. Peak urine flow rate occurred later ( P = 0.024) with the 4% beverage. The total volume of urine produced over the 6 h after rehydration, although not different between trials ( P = 0.307), tended to increase as the quantity of alcohol ingested increased. The increase in blood ( P = 0.013) and plasma ( P = 0.050) volume with rehydration was slower when the 4% beverage was consumed and did not increase to values significantly greater than the dehydrated level ( P = 0.013 and P = 0.050 for blood volume and plasma volume, respectively); generally, the increase was an inverse function of the quantity of alcohol consumed. These results suggest that alcohol has a negligible diuretic effect when consumed in dilute solution after a moderate level of hypohydration induced by exercise in the heat. There appears to be no difference in recovery from dehydration whether the rehydration beverage is alcohol free or contains up to 2% alcohol, but drinks containing 4% alcohol tend to delay the recovery process.

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27

DABBAGH, H. "Catalytic conversion of alcohols: The impact of inductive effect for secondary alcohol dehydration." Journal of Catalysis 110, no. 2 (April 1988): 416–18. http://dx.doi.org/10.1016/0021-9517(88)90334-x.

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28

Grishchenko, Liudmyla, Tetiana Bezugla, Alexander Zaderko, Anna Vakaliuk, Oleksandr Mischanchuk, Natalia Novychenko, Anastasiia Cheremenko, and Vitaliy Diyuk. "CATALYSTS OF ACID-BASE PROCESS ON THE BASIS OF THE MODIFIED CARBON FIBER." Ukrainian Chemistry Journal 85, no. 7 (August 15, 2019): 38–48. http://dx.doi.org/10.33609/0041-6045.85.7.2019.38-48.

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The functionalization of the carbon fiber based on polyacrylonitrile with sulfur-containing groups of high acidity was carried out in order to obtain the acid-base processes catalysts. Fibers were treated with sulfur vapors in the temperature range of 400-800°C, followed by surface oxidation with 30% hydrogen peroxide solution. Modified samples were investigated by chemical analysis, thermo-programmed desorption with mass spectrometric registration of products, IR spectroscopy and thermogravimetry. It is shown that the obtained materials contain SO3H-functional groups and oxygen-containing groups (carboxyl, lactone, phenolic, etc.) formed in the surface layer during the oxidation of the fiber surface. The chemical analysis showed that the concentration of sulfur in the samples of the modified fiber is 1.6-6.5 mmol/g. The synthesized samples have a satisfactory thermal stability. The synthesized catalysts were investigated in the model reaction - gas phase dehydration of isopropyl alcohol. It was found that obtained SO3H-containing carbon fibers were catalytically active and had high propylene selectivity. For all the samples obtained there is a complete conversion of alcohol into propylene. The activity of modified carbon fiber samples in the reaction indicated is a fairly high, temperatures of the total conversion of alcohol into propylene are in the range of 160-190°C. During the study of synthesized catalysts in several cycles of catalysis it have been shown that within repeated use (3 cycles) of all modified fiber samples, the yield of propylene does not decrease, the activity remains stable - the temperature of the dehydration reaction remains unchanged or increases insignificantly (by 5-10ºС). The temperatures of complete conversion of isopropyl alcohol in propylene for synthesized catalysts are lower than the temperatures of destruction maxima of surface sulfogroups. Thus, modified carbon fibers can be used as low-temperature catalysts of acid-base processes, in particular dehydration of alcohols.

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29

Yoshioka, Shota, Sota Nimura, Masayuki Naruto, and Susumu Saito. "Reaction of H2 with mitochondria-relevant metabolites using a multifunctional molecular catalyst." Science Advances 6, no. 43 (October 2020): eabc0274. http://dx.doi.org/10.1126/sciadv.abc0274.

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The Krebs cycle is the fuel/energy source for cellular activity and therefore of paramount importance for oxygen-based life. The cycle occurs in the mitochondrial matrix, where it produces and transfers electrons to generate energy-rich NADH and FADH2, as well as C4-, C5-, and C6-polycarboxylic acids as energy-poor metabolites. These metabolites are biorenewable resources that represent potential sustainable carbon feedstocks, provided that carbon-hydrogen bonds are restored to these molecules. In the present study, these polycarboxylic acids and other mitochondria-relevant metabolites underwent dehydration (alcohol-to-olefin and/or dehydrative cyclization) and reduction (hydrogenation and hydrogenolysis) to diols or triols upon reaction with H2, catalyzed by sterically confined iridium–bipyridyl complexes. The investigation of these single–metal site catalysts provides valuable molecular insights into the development of molecular technologies for the reduction and dehydration of highly functionalized carbon resources.

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30

Vázquez, P., L. Pizzio, C. Cáceres, M. Blanco, H. Thomas, E. Alesso, L. Finkielsztein, B. Lantaño, G. Moltrasio, and J. Aguirre. "Silica-supported heteropolyacids as catalysts in alcohol dehydration reactions." Journal of Molecular Catalysis A: Chemical 161, no. 1-2 (November 2000): 223–32. http://dx.doi.org/10.1016/s1381-1169(00)00346-0.

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31

Nel, Reinier J. J., and Arno de Klerk. "Fischer−Tropsch Aqueous Phase Refining by Catalytic Alcohol Dehydration." Industrial & Engineering Chemistry Research 46, no. 11 (May 2007): 3558–65. http://dx.doi.org/10.1021/ie061555r.

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32

Kostetskyy, Pavlo, Carly M. Nolan, Mudit Dixit, and Giannis Mpourmpakis. "Understanding Alkane Dehydrogenation through Alcohol Dehydration on γ-Al2O3." Industrial & Engineering Chemistry Research 57, no. 49 (November 12, 2018): 16657–63. http://dx.doi.org/10.1021/acs.iecr.8b04392.

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33

Todd, Alexander D., and Christopher W. Bielawski. "Graphite oxide activated zeolite NaY: applications in alcohol dehydration." Catal. Sci. Technol. 3, no. 1 (2013): 135–39. http://dx.doi.org/10.1039/c2cy20474f.

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34

Honkela, Maija L., Tuomas Ouni, and A. Outi I. Krause. "Thermodynamics and Kinetics of the Dehydration oftert-Butyl Alcohol." Industrial & Engineering Chemistry Research 43, no. 15 (July 2004): 4060–65. http://dx.doi.org/10.1021/ie049846s.

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35

Zhuang, Quan, and Jack M. Miller. "ZrO2/SiO2 mixed oxides as catalysts for alcohol dehydration." Applied Catalysis A: General 209, no. 1-2 (February 2001): L1—L6. http://dx.doi.org/10.1016/s0926-860x(00)00780-8.

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36

Niemistö, Johanna, Antti Pasanen, Kristian Hirvelä, Liisa Myllykoski, Esa Muurinen, and Riitta L. Keiski. "Pilot study of bioethanol dehydration with polyvinyl alcohol membranes." Journal of Membrane Science 447 (November 2013): 119–27. http://dx.doi.org/10.1016/j.memsci.2013.06.048.

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37

Nash, Connor P., Anand Ramanathan, Daniel A. Ruddy, Mayank Behl, Erica Gjersing, Michael Griffin, Hongda Zhu, Bala Subramaniam, Joshua A. Schaidle, and Jesse E. Hensley. "Mixed alcohol dehydration over Brønsted and Lewis acidic catalysts." Applied Catalysis A: General 510 (January 2016): 110–24. http://dx.doi.org/10.1016/j.apcata.2015.11.019.

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38

Pramod, C. V., R. Fauziah, K. Seshan, and J. P. Lange. "Bio-based acrylic acid from sugar via propylene glycol and allyl alcohol." Catalysis Science & Technology 8, no. 1 (2018): 289–96. http://dx.doi.org/10.1039/c7cy01416c.

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39

Emerson, Dawn M., Toni M. Torres-McGehee, Susan W. Yeargin, Kyle Dolan, and Kelcey K. deWeber. "Collegiate and Professional Ice Hockey Athletic Trainers’ Hydration Practices and Knowledge: Part 2." International Journal of Athletic Therapy and Training 25, no. 2 (March 1, 2020): 94–97. http://dx.doi.org/10.1123/ijatt.2018-0134.

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An athletic trainer’s (ATs) role requires current knowledge about factors that can influence hydration status. The purpose of this study was to determine awareness of alcohol and caffeine effects on hydration. Participants were 94 ATs with NCAA Division I or III men’s and/or women’s ice hockey teams and 82 head ATs with professional ice hockey teams. The majority of ATs were correct regarding alcohol’s effects on hydration, specifically knowing alcohol increases urine output (92.1%), delays fluid recovery (81.7%), and dehydrates a euhydrated individual (83.5%). In contrast, fewer ATs were correct that moderate, regular consumption of caffeine does not cause dehydration (20.7%), delay fluid recovery (15.2%), or impair fluid regulatory hormones (9.8%). While ATs were knowledgeable about alcohol effects, there remains misconceptions about caffeine on hydration.

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40

Kang, Minje, and Aditya Bhan. "Kinetics and mechanisms of alcohol dehydration pathways on alumina materials." Catalysis Science & Technology 6, no. 17 (2016): 6667–78. http://dx.doi.org/10.1039/c6cy00990e.

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41

Paulino, Priscilla N., Rafael F. Perez, Natália G. Figueiredo, and Marco A. Fraga. "Tandem dehydration–transfer hydrogenation reactions of xylose to furfuryl alcohol over zeolite catalysts." Green Chemistry 19, no. 16 (2017): 3759–63. http://dx.doi.org/10.1039/c7gc01288h.

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42

Said, Abd El-Aziz Ahmed. "Catalytic conversion of isopropyl alcohol on pure and alkali doped samarium oxide." Collection of Czechoslovak Chemical Communications 56, no. 12 (1991): 2807–14. http://dx.doi.org/10.1135/cccc19912807.

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The catalytic conversion of isopropyl alcohol (IPA) on pure and alkali doped Sm2O3 (10 mole %) was studied in flow system. The reaction is mainly dehydration-dehydrogenation of IPA. The results revealed that, the reaction products are strongly affected by the nature of employed carrier gase. The reaction in oxygen showed the highest activity and selectivity compared to other carriers. The doping process caused a significant decrease in the activity and selectivity of Sm2O3 solids. Probable mechanistic routes for the dehydration and dehydrogenation processes are proposed.

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43

Sreeram, Arvind, Sitaraman Krishnan, Stephan J. DeLuca, Azar Abidnejad, Michael C. Turk, Dipankar Roy, Elham Honarvarfard, and Paul J. G. Goulet. "Simultaneous electronic and ionic conduction in ionic liquid imbibed polyacetylene-like conjugated polymer films." RSC Advances 5, no. 107 (2015): 88425–35. http://dx.doi.org/10.1039/c5ra14360h.

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44

Klinov, Alexander V., Alexander V. Malygin, Alina R. Khairullina, Sergey E. Dulmaev, and Ilsiya M. Davletbaeva. "Alcohol Dehydration by Extractive Distillation with Use of Aminoethers of Boric Acid." Processes 8, no. 11 (November 16, 2020): 1466. http://dx.doi.org/10.3390/pr8111466.

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Aminoethers of boric acid (AEBA) were studied as potential extractants for the separation of aqueous–alcoholic azeotropic mixtures by extractive distillation. The conditions of vapor–liquid equilibrium in aqueous solutions of ethanol and isopropanol in the presence of AEBA were studied. The division of AEBA molecules into group components was proposed, and previously unknown geometric parameters of the boron group and the energetic pair parameters of the boron group with the alkane group, ether group, amine-3d group, and alcohol group were determined within the framework of the Universal Functional Group Activity Coefficient (UNIFAC) model. The modeling of the extractive rectification process of an ethanol–water mixture with AEBA as extractant has been carried out. The dependences of the cost function on the extractant flow rate, the residual water content in it and the number of theoretical trays were obtained. A technological scheme for ethanol dehydration has been proposed, and its technological characteristics have been calculated.

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Ali, Arif, and Chen Zhao. "Selective synthesis of α-olefins by dehydration of fatty alcohols over alumina–thoria mixed catalysts." Catalysis Science & Technology 10, no. 11 (2020): 3701–8. http://dx.doi.org/10.1039/d0cy00551g.

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Lamarine, Roland. "Dehydration, Rehydration, and Hyponatremia: Cause for Alarm?" Californian Journal of Health Promotion 1, no. 1 (March 18, 2003): 46–48. http://dx.doi.org/10.32398/cjhp.v1i1.217.

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Current health culture suggests that sedentary individuals should be consuming at least eight, eight ounce glasses of water each day. This injunction further stipulates that the water requirement cannot be adequately met by consumption of sweetened, caffeinated, or alcohol containing fluids. An additional concern is that thirst may not serve as an adequate early indicator of hydration needs. These propositions are reviewed in light of current research findings and suggestions are submitted for appropriate emendation of these rules.

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Bai, Lu, Ping Qu, Shuai Li, Yuan Gao, and Li Ping Zhang. "Poly(vinyl Alcohol)/Cellulose Nanocomposite Pervaporation Membranes for Ethanol Dehydration." Materials Science Forum 675-677 (February 2011): 383–86. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.383.

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In this study, pervaporation membranes were prepared from poly( vinyl alcohol) (PVA) with different amounts of cellulose nanocrystals as filler, and characterized by scanning electron microscopy (SEM). The characterization results demonstrated that cellulose nanocrystal particles dispersed homogeneously within the PVA matrix. Moreover, the pervaporation performance of these membranes was investigated using the separation of ethanol-water mixture as model system. Among all the prepared membranes, PVA/cellulose nanocomposite membrane containing 1 wt% cellulose nanocrystals exhibited the best pervaporation performance, whose averaged permeation flux reduced slightly but separation factor was increased from 83 to 163 for 80% aqueous solution of ethanol at 80 °C respectively.

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Irwin, Christopher, Alison Goodwin, Michael Leveritt, Andrew K. Davey, and Ben Desbrow. "Alcohol pharmacokinetics and risk-taking behaviour following exercise-induced dehydration." Pharmacology Biochemistry and Behavior 101, no. 4 (June 2012): 609–16. http://dx.doi.org/10.1016/j.pbb.2012.02.016.

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Lee, Kueir-Rarn, Yueh-Hua Wang, Min-Yu Teng, Der-Jang Liaw, and Juin-Yih Lai. "Preparation of aromatic polyamide membrane for alcohol dehydration by pervaporation." European Polymer Journal 35, no. 5 (May 1999): 861–66. http://dx.doi.org/10.1016/s0014-3057(98)00056-1.

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Arifin, Saiful, and I.-Lung Chien. "Combined Preconcentrator/Recovery Column Design for Isopropyl Alcohol Dehydration Process." Industrial & Engineering Chemistry Research 46, no. 8 (April 2007): 2535–43. http://dx.doi.org/10.1021/ie061446c.

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