Hydrodynamics of Pilot Plant Scale Airlift Reactor in Presence of Alcohols

Polish Journal of Chemical Technology

Jaju Someshwar J.¹  Nandi Somnath¹ 

[1] Maharashtra Institute of Technology, Department of Petroleum and Petrochemical Engineering, Paud Road, Kothrud, Pune – 411 038, India;

关键词: airlift reactor;    hydrodynamics;    gas hold-up;    bubble;    multiphase flow;    surfactant;   

DOI  :  10.1515/pjct-2015-0059

来源: DOAJ

【 摘 要 】

The overall gas hold-up of a pilot plant scale internal loop airlift reactor was studied in presence of different alcohols in varied concentration. It has been observed that these simple alcohols can enhance overall gas hold-up of the airlift assembly possibly due to formation of protective thin layer over smaller gas bubbles thereby reducing chance of their coalescence. As the alcohols can be used as food source for the micro organisms present in the system, this green and environment friendly process have potential to replace usage of hazardous surfactants often used for enhancing overall hold-up in order to obtain desired mass transfer characteristics. An empirical relationship encompassing overall gas hold-up of the reactor as a function of superficial gas velocity and alcohol concentration is also developed.

【 授权许可】

Unknown