Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10262647 | Chemical Engineering Science | 2005 | 4 Pages |
Abstract
Four mixtures of 1,1-, cis-1,2-, trans-1,2-, and cis-1,4-dimethylcyclohexanes (hereafter abbreviated DMCH) including H2O and Xe have been investigated in a temperature range over 274.5Â K and a pressure range up to 2.7Â MPa. The 1,1-DMCH and cis-1,2-DMCH generate the structure-H hydrate in the temperature range up to 295.2 and 280.2Â K, respectively. Especially, very large depression of equilibrium pressure has been observed in the structure-H 1,1-DMCH hydrate system. On the other hand, neither trans-1,2-DMCH nor cis-1,4-DMCH generates the structure-H hydrate in the present temperature range. It is an important finding that the cis-1,4-DMCH does not generate the structure-H hydrate in the presence of Xe, while the mixture of cis-1,4-DMCH and methane generates the structure-H hydrate.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Takeshi Sugahara, Tsutomu Hara, Shunsuke Hashimoto, Kazunari Ohgaki,