Hydrate formation in i-butane-n-butane or a butene isomer water system at a given temperature
✍ Scribed by Tuchida; Ihayano
- Book ID
- 104112809
- Publisher
- Elsevier Science
- Year
- 1967
- Tongue
- English
- Weight
- 363 KB
- Volume
- 3
- Category
- Article
- ISSN
- 0011-9164
No coin nor oath required. For personal study only.
✦ Synopsis
In !his rf t&y_ if wxs first cunfirmcd cqwimcnfaIly fhat of the four-carbon hyctroca&ons, only i-butane. xems to be abk to form solid hydrate by itxlf itt coexisccncc with an aqueous phase. Then similar ~~pak~nts with i-butancf-based binary mixtures with each of thcx bydrourbons ucn carried out at a tixai tcmpaaturc of -0.7 'C. Tbc results show that the refationships hefueen the composition of the mixture used and the cquif&r%im toraf preB8ire can be found appraximarczy by a prczposcd rhcer#&af ccWsidaation* Thus, rk mixrurcs with kss rhan 73.8 "6 Cbutanc can not form a hydrate at -4.7"C with f AD/:, 'Nat2 aqueous ycttution, and this limiting ratio incurs \ith increasing temperature. For cxatnpfe, the following valuesarcobtained: 84.1% at O_O'C smd 69.5%; at -1.0 C. The mixtures containmg more than the above ratios could farm a solid hydrafe. whew quantify HU proportional to the excess of the i-butane used. Ahhcwgh to justify the above thcvry, it wiit bc necessary to conduct further studies with propane instead of i-butanc at this and/or al other tcmpcraturcs, it sumts a suitable composirion for the sccondary rcfrigcrant applied in the direct contact freezing process for tiw desalination of sea uater, from !be point of xicw ofthc operating prcssure and the prcwxttion of hydrate formation. It is well-known that the Struthers-Umano process is based upon Iorlg-range e%xts in our insutute. Sir&x f36t, I have been resprtsible fur the research and