Backmixing characteristics of a bubble column with a side gas stream

Journal Article · Sun Dec 31 23:00:00 EST 1978 · Ind. Eng. Chem. Process Des. Dev.; (United States)

DOI:https://doi.org/10.1021/i260069a027· OSTI ID:6988911

Shah, Y T; Krishnamurthy, S

Tracer experiments conducted with water/nitrogen in a 5.08 cm dia x 139.7 cm high bubble column with quench port combined with theoretical considerations of backmixing in a bubble column showed that partial addition of the gas as a side stream is always less effective for axial mixing than introducing the total gas amount from the bottom. Increasing the amount of gas introduced as a side stream also decreased the gas holdup. Temperature control by gas quenching is therefore not effective in adiabatic backmixed reactors, such as are used in coal liquefaction or upflow hydrodesulfurization, unlike gas quenching in plug flow reactors.

• Research Organization: Univ. of Pittsburgh
• OSTI ID: 6988911
• Journal Information: Ind. Eng. Chem. Process Des. Dev.; (United States), Journal Name: Ind. Eng. Chem. Process Des. Dev.; (United States) Vol. 18:1; ISSN IEPDA
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010405* -- Coal
Lignite
& Peat-- Hydrogenation & Liquefaction
BUBBLES
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL LIQUEFACTION
CONTROL
DESIGN
DESULFURIZATION
FLUID FLOW
FLUID MECHANICS
FLUIDS
GASES
ISOTOPE APPLICATIONS
LIQUEFACTION
MECHANICS
MIXING
MULTIPHASE FLOW
TEMPERATURE CONTROL
THERMOCHEMICAL PROCESSES
TRACER TECHNIQUES