MULTISTAGE PROCESS OF DEUTERIUM AND HEAVY OXYGEN ENRICHMENT BY MEMBRANE DISTILLATION

Authors
CHMIELEWSKI AG ZAKRZEWSKATRZNADEL G MILJEVIC NR VANHOOK WA
Citation
Ag. Chmielewski et al., MULTISTAGE PROCESS OF DEUTERIUM AND HEAVY OXYGEN ENRICHMENT BY MEMBRANE DISTILLATION, Separation science and technology, 32(1-4), 1997, pp. 527-539
Citations number
6
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Separation science and technology → ACNP
ISSN journal
01496395
Volume
32
Issue
1-4
Year of publication
1997
Pages
527 - 539
Database
ISI
SICI code
0149-6395(1997)32:1-4<527:MPODAH>2.0.ZU;2-1
Abstract
Deuterium and oxygen-18 isotope enrichment in water by membrane distil lation were studied in a 4-stage cascade. Two configurations of membra ne distillation (MD) employing PTFE fat-sheet membranes were investiga ted, including direct contact MD and air gap MD. The first, direct con tact MD is more efficient. It is characterized by high distillate flow rate. The temperature polarization coefficients were higher for direc t contact MD. H/D and O-16/O-18 separation factors were determined in the 4-stage cascade.