- All Journals
- Al-Qadisiyah University
- Basrah University
- Kirkuk University
- Mosul University
- The Iraqi Borad for Medical Specialization
- University of Anbar
- University of Technology
- Al Mustafa University
- Al-Zahraa University for Women
- Alnoor University
- Kunooz University
- Misan University
- Ninevah University
- Tikrit University
- University of Al-Hamdaniya
- University of Kerbala
Influence of Draft Tube Diameter on Operation Behaviorof Air Lift Loop Reactors | ||
| Al-Khwarizmi Engineering Journal | ||
| Article 1, Volume 6, Issue 2, 2010, Pages 21-32 | ||
| Authors | ||
| Laith S. S. Al-Kuffe; Ali Abdul-Rahman Al-Azzi | ||
| Abstract | ||
| The ratio of draft tube to reactor diameters is of decisive importance for the operation behavior of air lift loop reactors. The influence of draft tube geometry was investigated with respect to oxygen mass transfer and mixing time. The diameter ratio was varied between 0.33 and 0.80. The measurements were performed in two loop reactors with liquid capacities of 11.775 and 26.49 liters using aqueous with solutions of different coalescence behavior. The results show that there is no single diameter ratio which would produce most favorable conditions for the two process parameters. With respect to the more important requirements of aerobic cultures, i.e high oxygen mass transfer and efficient mixing, a diameter ratio between 0.5 and 0.6 is recommended. If high liquid velocities in the draft tube are required a ratio of 0.6 should be used. | ||
| Keywords | ||
| Draft tube; loop reactors; Mass Transfer; mixing time | ||
|
Statistics Article View: 40 PDF Download: 7 |
||