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Issue 44, 2011
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Interfacial mechanisms governing cyclopentane clathrate hydrate adhesion/cohesion

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Abstract

The present work uses a micromechanical force apparatus to directly measure cyclopentane clathrate hydrate cohesive force and hydrate-steel adhesive force, as a function of contact time, contact force and temperature. We present a hydrate interparticle force model, which includes capillary and sintering contributions and is based on fundamental interparticle force theories. In this process, we estimate the cyclopentane hydrate tensile strength to be approximately 0.91 MPa. This hydrate interparticle force model also predicts the effect of temperature on hydrate particle cohesion force. Finally, we present the first direct measurements of hydrate cohesive force in the gas phase to be 9.1 ± 2.1 mN/m at approximately 3 °C (as opposed to 4.3 ± 0.4 mN/m in liquid cyclopentane).

Graphical abstract: Interfacial mechanisms governing cyclopentane clathrate hydrate adhesion/cohesion

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Publication details

The article was received on 10 Jun 2011, accepted on 23 Sep 2011 and first published on 10 Oct 2011


Article type: Paper
DOI: 10.1039/C1CP21907C
Citation: Phys. Chem. Chem. Phys., 2011,13, 19796-19806
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    Interfacial mechanisms governing cyclopentane clathrate hydrate adhesion/cohesion

    Z. M. Aman, E. P. Brown, E. D. Sloan, A. K. Sum and C. A. Koh, Phys. Chem. Chem. Phys., 2011, 13, 19796
    DOI: 10.1039/C1CP21907C

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