TY - GEN
T1 - Flow pattern and mass transfer characteristics of valve tray in absorption process
AU - Nurkhamidah, Siti
AU - Altway, Ali
AU - Wulansari, Ayu Savitri
AU - Khanifah, Evi Fitriyah
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015/12/29
Y1 - 2015/12/29
N2 - The flow pattern characteristics of valve tray in absorption process which is expressed in pressure drop and the number of equivalent tank in series (N) has an important role to know the efficiency and performance of a process. This study has been done in the absorption column by using water and air as liquid and gas phase, respectively. To observe pressure drop and flow pattern in the column, flow rate of liquid and air has been variated. Flow pattern has been determined by using pulse method and using NaCl as tracer. The experiment results show that the column pressure drop is mainly influenced by the liquid height on the tray. When the water flow rate is high, liquid height on the tray is higher so that the column pressure drops increases. Flow pattern characteristic of fluid on valve tray is affected by water and air flowrates. For high water flow rate, the residence time distribution (RTD) curve is sharper and the number of N is greater and the flow pattern tends to a plug flow. However, the number of N decreases when the air flowrate increases. The liquid-side mass transfer coefficient (kLa') is shown by the following empirical relationship kLa' = 2,607QL0,202Qv0,456.
AB - The flow pattern characteristics of valve tray in absorption process which is expressed in pressure drop and the number of equivalent tank in series (N) has an important role to know the efficiency and performance of a process. This study has been done in the absorption column by using water and air as liquid and gas phase, respectively. To observe pressure drop and flow pattern in the column, flow rate of liquid and air has been variated. Flow pattern has been determined by using pulse method and using NaCl as tracer. The experiment results show that the column pressure drop is mainly influenced by the liquid height on the tray. When the water flow rate is high, liquid height on the tray is higher so that the column pressure drops increases. Flow pattern characteristic of fluid on valve tray is affected by water and air flowrates. For high water flow rate, the residence time distribution (RTD) curve is sharper and the number of N is greater and the flow pattern tends to a plug flow. However, the number of N decreases when the air flowrate increases. The liquid-side mass transfer coefficient (kLa') is shown by the following empirical relationship kLa' = 2,607QL0,202Qv0,456.
UR - http://www.scopus.com/inward/record.url?scp=84975096793&partnerID=8YFLogxK
U2 - 10.1063/1.4938374
DO - 10.1063/1.4938374
M3 - Conference contribution
AN - SCOPUS:84975096793
T3 - AIP Conference Proceedings
BT - International Conference of Chemical and Material Engineering, ICCME 2015
A2 - Iskandar, Ferry
A2 - Hadiyanto, null
A2 - Budiman, Arief
A2 - Nur, Hadi
A2 - Ismadji, Suryadi
PB - American Institute of Physics Inc.
T2 - 2nd International Conference of Chemical and Material Engineering: Green Technology for Sustainable Chemical Products and Processes, ICCME 2015
Y2 - 29 September 2015 through 30 September 2015
ER -