Ionic liquid piston compressor
An ionic liquid piston compressor, ionic compressor or ionic liquid piston pump is a hydrogen compressor based on an ionic liquid piston instead of a metal piston as in a piston-metal diaphragm compressor.[1]
Contents
Principle
The ionic compressor exploits some gases' insolubility in ionic liquids - the virtually non-measurable vapor pressures in combination with a large temperature window for the liquid phase. The solubility of hydrogen in ionic liquids is very low. This insolubility is exploited by using a body of ionic liquid to compress hydrogen up to 450 bar[2] in hydrogen filling stations; and in so doing they reduced the number of moving parts from about 500 in a conventional reciprocating compressor down to 8.[3]
Not to be confused with the ion pump or the ionic liquid ring pump.
History
After the renewed interest in ionic liquids, research was done by proionic, an enterprise in the spin-off center "ZAT Center for applied Technology" of the University of Leoben.[4][5] The system was demonstrated at Zemships.[6]
See also
- Electrochemical hydrogen compressor
- Guided rotor compressor
- Hydride compressor
- Linear compressor
- Timeline of hydrogen technologies
References
- ↑ New developments in pumps and compressors using Ionic Liquids
- ↑ Zemships - Ionic liquid compression
- ↑ Ionic liquid compressor
- ↑ University of Leoben: Spin-off creates innovation for compression of gas
- ↑ Mobility under high pressure Pag-38
- ↑ Construction and design of hydrogen filling stations
