Fully Polymeric Distillation Unit Based on Polypropylene Hollow Fibers
| Autor: | Jiří Hvožďa, Alan Strunga, Tereza Kůdelová, Erik Bartuli, Miroslav Dohnal |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Polymers and Plastics Evaporation 02 engineering and technology hollow fiber membranes Desalination Article law.invention lcsh:QD241-441 020401 chemical engineering lcsh:Organic chemistry law Mass transfer heat transfer Fiber 0204 chemical engineering Composite material Distillation Condenser (heat transfer) Condensation General Chemistry 021001 nanoscience & nanotechnology sweep gas membrane distillation Polypropylene 0210 nano-technology Water vapor polypropylene |
| Zdroj: | Polymers Polymers, Vol 13, Iss 1031, p 1031 (2021) Volume 13 Issue 7 Polymers. 2021, vol. 13, issue 7, p. 1031-1031. |
| ISSN: | 2073-4360 |
| Popis: | Access to pure water is a very topical issue today. Desalination represents a promising way of obtaining drinking water in areas of shortage. Currently, efforts are being made to replace the metal components of existing desalination units due to the high corrosivity of sea water. Another requirement is easy transportation and assembly. The presented solution combines two types of polymeric hollow fibers that are used to create the distillation unit. Porous polypropylene hollow fiber membranes have been used as an active surface for mass transfer in the distillation unit, while non-porous thermal polypropylene hollow fibers have been employed in the condenser. The large active area to volume ratio of the hollow fiber module improves the efficiency of both units. Hot water is pumped inside the membranes in the distillation unit. Evaporation is first observed at a temperature gradient of 10 °C. The water vapor flows through the tunnel to the condenser where cold water runs inside the fibers. The temperature gradient causes condensation of the vapor, and the condensate is collected. The article presents data for hot water at temperatures of 55, 60, and 65 °C. Optimization of the membrane module is evaluated and presented. |
| Databáze: | OpenAIRE |
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