HYDRODYNAMIC AND MASS TRANSFER IN A SPLIT-CYLINDER AIRLIFT BIOREACTOR WITH PACKED BED

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SAJJADI BAHARAK; KESHAVARZ MORAVEJI MOSTAFA

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Seminar Paper

Paper Information

Seminar: CHEMICAL ENGINEERING CONGRESS AND EXHIBITION
Year:2010 | Issue:13

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Title

HYDRODYNAMIC AND MASS TRANSFER IN A SPLIT-CYLINDER AIRLIFT BIOREACTOR WITH PACKED BED

Author(s)

SAJJADI BAHARAK | KESHAVARZ MORAVEJI MOSTAFA | Issue Writer Certificate

Keywords

AIRLIFT BIOREACTOR

GAS HOLDUP

LIQUID CIRCULATION

MIXING TIME

GAS–LIQUID MASS TRANSFER

Abstract

EFFECTS OF PACKED BED IN THE RISER SECTION OF A SPLIT-CYLINDER AIRLIFT BIOREACTOR ON GAS HOLDUP, LIQUID CIRCULATION RATE, MIXING TIME AND THE GAS-LIQUID MASS TRANSFER WITH DIFFERENT GAS FLOW RATES ARE REPORTED FOR AIR–WATER. PACKING ARE ONE/TWO ROWS OF CYLINDRICAL TYPE THAT WERE SETTING HORIZONTALLY WITH A REGULAR DISTANCES. SUPERFICIAL GAS VELOCITIES WAS USED AS OPERATIONAL PARAMETER.IT WAS OBSERVED FROM EXPERIMENTAL RESULTS THAT GAS HOLD UP, OXYGEN TRANSFER AND MIXING TIME INCREASED WITH INCREASING THE NUMBER OF PACKING ROWS BUT PRESENCE OF PACKING IN THE REACTOR DECREASE THE LIQUID CIRCULATION. IN FACT PACKINGS ACT LIKE A BARRIER SO DECREASE LIQUID CIRCULATION, IN ADDTION, ACCUMULATION OF BUBBLES BEHIND THEM LEAD TO INCREASING BUBBLE COALESCENCE RATE AND INCREASING OF BOUYNCY FORCE THUS BUBBLES EXPORT FROM RECTOR WITH NOT IMPORTING TO DOWN COMER RESULT IN DECREASING OF GAS HOLD-UP IN THE DOWN COMER.

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APA: Copy

SAJJADI, BAHARAK, & KESHAVARZ MORAVEJI, MOSTAFA. (2010). HYDRODYNAMIC AND MASS TRANSFER IN A SPLIT-CYLINDER AIRLIFT BIOREACTOR WITH PACKED BED. IRANIAN NATIONAL CHEMICAL ENGINEERING CONGRESS & 1ST INTERNATIONAL REGIONAL CHEMICAL AND PETROLEUM E. SID. https://sid.ir/paper/908839/en

Vancouver: Copy

SAJJADI BAHARAK, KESHAVARZ MORAVEJI MOSTAFA. HYDRODYNAMIC AND MASS TRANSFER IN A SPLIT-CYLINDER AIRLIFT BIOREACTOR WITH PACKED BED. 2010. Available from: https://sid.ir/paper/908839/en

IEEE: Copy

BAHARAK SAJJADI, and MOSTAFA KESHAVARZ MORAVEJI, “HYDRODYNAMIC AND MASS TRANSFER IN A SPLIT-CYLINDER AIRLIFT BIOREACTOR WITH PACKED BED,” presented at the IRANIAN NATIONAL CHEMICAL ENGINEERING CONGRESS & 1ST INTERNATIONAL REGIONAL CHEMICAL AND PETROLEUM E. 2010, [Online]. Available: https://sid.ir/paper/908839/en

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