Heat transfer investigations in a slurry bubble column

Technical Report · Fri Feb 01 04:00:00 EST 1991

DOI:https://doi.org/10.2172/5445744· OSTI ID:5445744

Saxena, S C; Rao, N S; Vadivel, R; Shrivastav, S; Saxena, A C; Patel, B B; Thimmapuram, P R; Kagzi, M Y; Khan, I A; Verma, A K

Slurry bubble columns, for use in Fischer-Tropsch synthesis, have been investigated. Two bubble columns (0.108 and 0.305 m internal diameter) were set up and experiments were conducted to determine gas holdup and heat transfer coefficients. These columns were equipped with either single heat transfer probes of different diameters, or bundles of five-, seven-, or thirty-seven tubes. the experiments were conducted for two- and three phase systems; employing for gas phase: air and nitrogen, liquid phase: water and Therminol-66, and solid phase: red iron oxide (1.02, 1.70 and 2.38 {mu}m), glass beads (50.0, 90.0, 119.0 and 143.3 {mu}m), silica sand (65 {mu}m), and magnetite (28.0, 35.7, 46.0, 58.0, 69.0, 90.5, 115.5 and 137.5 {mu}m). The column temperature was varied between 298--523 K, gas velocity between 0--40 cm/s, and solids concentration between 0--50 weight percent. The holdup and heat transfer data as a function of operating and system parameters were employed to assess the available correlations and semitheoretical models, and to develop new correlations. Information concerning the design and scale-up of larger units is presented. Specific research work that need to be undertaken to understand the phenomena of heat transfer and gas holdup is outlined so that efficient gas conversion and catalyst usage may be accomplished in slurry bubble columns. 28 refs., 102 figs., 42 tabs.

• Research Organization: Illinois Univ., Chicago, IL (United States). Dept. of Chemical Engineering
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC22-86PC90008
• OSTI ID: 5445744
• Report Number(s): DOE/PC/90008-T8-Vol.1; ON: DE91016810
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010408* -- Coal
Lignite
& Peat-- C1 Processes-- (1987-)
BUBBLES
CHEMICAL REACTIONS
CHEMICAL REACTORS
CORRELATIONS
DISPERSIONS
DOCUMENT TYPES
ENERGY TRANSFER
FISCHER-TROPSCH SYNTHESIS
HEAT TRANSFER
MIXTURES
PARTICLE SIZE
PHASE STUDIES
PROGRESS REPORT
SIZE
SLURRIES
SUSPENSIONS