Issue 50, 2014

Inclusion of thiophene as a co-guest in a structure II hydrate with methane gas

Abstract

Thiophene and its derivatives are found in crude oils and their molecular sizes indicate they could be clathrate hydrate formers. In this study, the formation of clathrate hydrates in the presence of thiophene and methane gas is identified through spectroscopic and thermodynamic investigations. Powder X-ray diffraction (PXRD) is used in order to identify the crystal structure of the binary (thiophene + CH4) clathrate hydrate, and PXRD patterns of the binary (thiophene + CH4) clathrate hydrate indicate the formation of structure II hydrate with methane gas. The unique inclusion and distribution of guest molecules such as thiophene and methane are verified through Raman spectroscopy. The thermodynamic stability of the binary (thiophene + CH4) clathrate hydrate is also investigated by using high pressure differential scanning calorimetry. The experimental results are valuable for a better understanding of the crystal structure, host–guest interaction and stability conditions in the binary (thiophene + CH4) clathrate hydrate.

Graphical abstract: Inclusion of thiophene as a co-guest in a structure II hydrate with methane gas

Article information

Article type
Paper
Submitted
23 Apr 2014
Accepted
05 Jun 2014
First published
06 Jun 2014

RSC Adv., 2014,4, 26176-26180

Inclusion of thiophene as a co-guest in a structure II hydrate with methane gas

M. Cha, S. Baek, H. Lee and J. W. Lee, RSC Adv., 2014, 4, 26176 DOI: 10.1039/C4RA03680H

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements