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1.175 Aktuelle Fachpublikationen zum Thema temperature

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Separation of Itaconic Acid from Aqueous Solution onto Ion-Exchange Resins

20.11.2015 | Antonio Irineudo Magalhães, Jr.; Júlio Cesar de Carvalho; Elia Natália Meza Ramírez; Jesus David Coral Medina; Carlo ..., Journal of Chemical & Engineering Data, 2015

Itaconic acid (IA) is an unsaturated diacid, a promising compound that might replace part of the petrochemical-based monomers, such as acrylic acid, as a building block for polymers. Recent developments in biotechnology allow the efficient production of IA through fermentation processes. However, ...


Adsorptive Separation of Acetic Acid from Dilute Aqueous Solutions: Adsorption Kinetic, Isotherms, and Thermodynamic Studies

20.11.2015 | Huanhuan Zhang; Yuming Wang; Peng Bai; Xianghai Guo; Xiuxiu Ni, Journal of Chemical & Engineering Data, 2015

ZSM-5 (Zeolite Scony Moblie-5) (SiO2/Al2O3 = 360, 470), NaY, 13X (pellet, powder) and coconut shell activated carbon (YK-AC) are employed for acetic acid separation from dilute aqueous solutions via adsorption. Zeolite 13X exhibits a much higher adsorption capacity than other zeolites and ...


Hydrogen Solubility in Hydrocarbon and Oxygenated Organic Compounds

19.11.2015 | Thi-Kim-Hoang Trinh; Jean-Charles de Hemptinne; Rafael Lugo; Nicolas Ferrando; Jean-Philippe Passarello, Journal of Chemical & Engineering Data, 2015

The hydrogen solubility in 42 organic compounds including alcohols, aldehydes, carboxylic acid, esters and ethers, glycols, n-alkanes, and water is investigated. For this purpose, the Henry's constant is collected or computed from different sources. After removing incoherent data, two temperature ...


The Solubility of Hydrogen Sulfide and Carbon Dioxide in Propylene Carbonate

19.11.2015 | Fang-Yuan Jou; Alan E. Mather; Kurt A. G. Schmidt, Journal of Chemical & Engineering Data, 2015

The solubility of hydrogen sulfide in propylene carbonate was measured at the temperatures (248.15, 273.15, 298.15, 333.15 and 373.15) K at pressures between 0.1 MPa and 4.8 MPa. The data were correlated with the Peng–Robinson equation of state. A linear temperature dependent binary interaction ...


Mutual Solubility of Water and Hydrocarbons

18.11.2015 | Carl Landra; Marco A. Satyro, Journal of Chemical & Engineering Data, 2015

The accurate modeling of systems containing water and hydrocarbons is important to support key decisions related to the design, simulation, and optimization of a variety of industrial processes, ranging from refineries, to gas plants and liquified natural gas processing facilities. Processes of ...


Binary Diffusion Coefficients of the Liquid Organic Hydrogen Carrier System Dibenzyltoluene/Perhydrodibenzyltoluene

18.11.2015 | Andreas Heller; Michael H. Rausch; Peter S. Schulz; Peter Wasserscheid; Andreas P. Fröba, Journal of Chemical & Engineering Data, 2015

Liquid organic hydrogen carrier (LOHC) systems constitute a very promising concept for future hydrogen storage and logistics. The concept builds on the conversion of excess renewable energy to hydrogen via electrolysis followed by reversible catalytic hydrogenation/dehydrogenation of a ...


Apparatus To Measure the Vapor Pressure of Slowly Decomposing Compounds from 1 Pa to 105 Pa

17.11.2015 | Robert F. Berg, Journal of Chemical & Engineering Data, 2015

This article describes an apparatus and method for measuring vapor pressures in the range from 1 Pa to 105 Pa. Its three distinctive elements are (1) the static pressure measurements were made with only a small temperature difference between the vapor and the condensed phase, (2) the sample was ...


Correcting “Static” Measurements of Vapor Pressure for Time Dependence Due to Diffusion and Decomposition

17.11.2015 | Robert F. Berg, Journal of Chemical & Engineering Data, 2015

The static method for measuring vapor pressure assumes that the sample is pure and that its temperature is steady and uniform. In practice, the measured pressure may be time dependent because of evaporative cooling after pumping on the sample, transpiration of the sample in a temperature ...


Density, Speed of Sound, Viscosity, and Surface Tension of Dimethylethylenediamine + Water and (Ethanolamine + Dimethylethanolamine) + Water from T = (293.15 to 323.15) K

13.11.2015 | Antonio Blanco; Alicia García-Abuín; Diego Gómez-Díaz; José M. Navaza, Journal of Chemical & Engineering Data, 2015

This work analyzes different physical properties with importance upon mass transfer processes (density, speed of sound, viscosity, and surface tension) for new chemical solvents for carbon dioxide capture (dimethylethylenediamine + water and ethanolamine + dimethylethanolamine + water). These ...


Solubility, Density, and Metastable Zone Width of Pyridoxine Hydrochloride in Water and Ethanol Solvent Mixtures

13.11.2015 | Kun Zhou; Yueyong Yan; Lianying An; Dongni Xiang; Hongbin Wang, Journal of Chemical & Engineering Data, 2015

The solubility of pyridoxine hydrochloride in water and ethanol solvent mixtures was measured using a laser monitoring observation technique at the temperature range from (278.15 to 323.15) K. The mole fraction of ethanol in the solvent mixtures (x3) ranges from 0.0 to 0.6012. For the seven group ...


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