Go to  Advanced Search

CRITICAL GUEST CONCENTRATION AND COMPLETE TUNING PATTERN APPEARING IN THE BINARY CLATHRATE HYDRATES

Show full item record

Files in this item

Files Size Format Description   View
5553.pdf 690.0Kb Adobe Portable Document Format   View/Open
 
Title: CRITICAL GUEST CONCENTRATION AND COMPLETE TUNING PATTERN APPEARING IN THE BINARY CLATHRATE HYDRATES
Author: Lee, Jong-won; Park, Jeasung; Ripmeester, John A.; Kim, Do-Youn; Lee, Huen; Cha, Jong-Ho
Subject Keywords International Conference on Gas Hydrates;ICGH;sII;Tuning phenomenon;THF;Critical guest concentration;Clathrate hydrate
Issue Date: 2008-07
Publicly Available in cIRcle 2008-07-23
Citation: Cha, Jong-Ho; Lee, Huen; Kim, Do-Youn; Park, Jeasung; Lee, Jong-won; Ripmeester, John A. 2008. CRITICAL GUEST CONCENTRATION AND COMPLETE TUNING PATTERN APPEARING IN THE BINARY CLATHRATE HYDRATES. Proceedings of the 6th International Conference on Gas Hydrates (ICGH 2008), Vancouver, British Columbia, CANADA, July 6-10, 2008.
Abstract: Previously we have suggested the concept of tuning hydrate compositions which makes it possible to increase the gas storage capacity of binary hydrates. Herein, we report for the first time the existence of a critical guest concentration (CGC) and establish the complete tuning pattern that appears to exist in binary hydrates, including the water-soluble hydrate formers (promoters) and water insoluble guests,. The first attempt to verify the new features of clathrate hydrate compositions is executed on the binary hydrate of CH4 + THF and involves a detailed examination of the guest distribution by spectroscopic methods. THF molecules by themselves form sII hydrate from a completely miscible aqueous solution, and in this structure, because of their size, THF molecules occupy only the large 51264 cages. The CGC value appears to depend largely on the chemical nature of the liquid guest component participating in the binary hydrate formation. The present experimental findings on the existence of critical guest concentration and the complete tuning phenomenon can be expected to make a meaningful contribution to both inclusion chemistry and a variety of hydrate-based fields.
Affiliation: OtherOther
URI: http://hdl.handle.net/2429/1093
Peer Review Status:

This item appears in the following Collection(s)

Show full item record

All items in cIRcle are protected by copyright, with all rights reserved.

UBC Library
1961 East Mall
Vancouver, B.C.
Canada V6T 1Z1
Tel: 604-822-6375
Fax: 604-822-3893