Thermal and Mutual Diffusivity of Binary Mixtures of n-Dodecane and n-Tetracontane with Carbon Monoxide, Hydrogen, and Water from Dynamic Light Scattering (DLS)

Heller A, Fleys MSH, Chen J, van der Laan GP, Rausch MH, Fröba AP (2016)

Publication Language: English

Publication Status: Published

Publication Type: Journal article, Original article

Publication year: 2016

Journal

Journal of Chemical and Engineering Data American Chemical Society

Publisher: American Chemical Society

Book Volume: 61

Pages Range: 1333-1340

Journal Issue: 3

DOI: 10.1021/acs.jced.5b00986

Abstract

The present work represents a continuation of a former study where the simultaneous determination of thermal and mutual diffusivity for binary mixtures of n-octacosane (n-C28H58) with dissolved carbon monoxide (CO), hydrogen (H-2), or water (H2O) by using dynamic light scattering (DLS) was demonstrated. Here, the same properties are studied for binary mixtures of the n-alkanes n-dodecane (n-C12H26) or n-tetracontane (n-C40H82) with dissolved CO, H-2, or H2O. In most cases, expanded relative uncertainties (k = 2) ranging from 2 to 12 % and 3 to 25 % for the thermal and mutual diffusivities could be obtained. The experimental mutual diffusivities for mixtures of n-C12H26 with CO, H-2, or H2O measured at temperatures from 398 to 524 K and pressures from 0.2 to 4.2 MPa at saturation conditions agree well with molecular dynamics (MD) simulations using atomistic models and with experimental data from literature. Binary mixtures of n-C40H82 with dissolved CO, H-2, or H2O were investigated in a temperature range from 447 to 498 K and pressures from 0.3 to 3.9 MPa. For mixtures with n-C40H82, the accessible temperature range was limited due to a change in the optical characteristics of the sample at elevated temperatures where DLS measurements suffered from absorption effects and particle scattering.

Authors with CRIS profile

Andreas Heller Michael Rausch Andreas Paul Fröba Institute of Advanced Optical Technologies - Thermophysical Properties (AOT-TP)

Additional Organisation(s)

Erlangen Graduate School in Advanced Optical Technologies (SAOT)

Related research project(s)

Investigation of the diffusion coefficient of hydrogen, carbon monoxide, and water in n-alkanes by dynamic light scattering / Experimental investigation of surface tension and viscosity of representative wax samples at reaction conditions Nov. 9, 2015 - Dec. 31, 2017

How to cite

APA:

Heller, A., Fleys, M.S.H., Chen, J., van der Laan, G.P., Rausch, M.H., & Fröba, A.P. (2016). Thermal and Mutual Diffusivity of Binary Mixtures of n-Dodecane and n-Tetracontane with Carbon Monoxide, Hydrogen, and Water from Dynamic Light Scattering (DLS). Journal of Chemical and Engineering Data, 61(3), 1333-1340. https://doi.org/10.1021/acs.jced.5b00986

MLA:

Heller, Andreas, et al. "Thermal and Mutual Diffusivity of Binary Mixtures of n-Dodecane and n-Tetracontane with Carbon Monoxide, Hydrogen, and Water from Dynamic Light Scattering (DLS)." Journal of Chemical and Engineering Data 61.3 (2016): 1333-1340.

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