|
|
|
Application of gamma-ray attenuation technology in density measurement of a slurry reactor |
Jian XU1,2( ), Weisheng WEI1, Kai ZHANG2 |
| 1. The Key Laboratory of Catalysis, China National Petroleum Co., China University of Petroleum, Beijing 102249, China; 2. The State Key Laboratory of Heavy Oil, China University of Petroleum, Beijing 102249, China |
|
|
|
|
Abstract Axial density profile of the gas-liquid-solid mixture in a slurry bubble column was measured by gamma-ray attenuation technology. Several measures for improving measurement precision were presented based on the discussion on attenuation law. It was found that the response frequency and the ray intensity should be as high as possible to improve the measurement precision. The mass absorption coefficient depended on not the object’s thickness but the location where the object was placed between the ray source and the detector. The results showed that the density in the column decreases with the increase of column height, which indicates that the measurement by gamma-ray attenuation is reasonable.
|
| Keywords
slurry reactor
axial density distribution
gamma-ray attenuation technology
|
|
Corresponding Author(s):
XU Jian,Email:xujian@cup.edu.cn
|
|
Issue Date: 05 December 2010
|
|
| 1 |
Guettel R, Turek T. Comparison of different reactor types for low temperature Fischer-Tropsch synthesis: a simulation study. Chemical Engineering Science , 2009, 64(5): 955-964
doi: 10.1016/j.ces.2008.10.059
|
| 2 |
Guettel R, Kunz U, Turek T. Reactors for Fischer-Tropsch synthesis. Chemical Engineering & Technology , 2008, 31(5): 746-754
doi: 10.1002/ceat.200800023
|
| 3 |
Sie S T, Krishna R. Fundamentals and selection of advanced Fischer-Tropsch reactors. Appl Catal A , 1999, 186(1-2): 55-70
|
| 4 |
Woo K J, Kang S H, Kim S M, Bae J W, Jun K W. Performance of a slurry bubble column reactor for Fischer-Tropsch synthesis: determination of optimum condition. Fuel Processing Technology , 2010, 91(4): 434-439
doi: 10.1016/j.fuproc.2009.04.021
|
| 5 |
Fan L S. Gas-liquid-solid fluidization engineering: stoneham. Massachusetts: Butterworth Publishers, 1989
|
| 6 |
Wang T, Wang J, Jin Y. Slurry reactors for gas-to-liquid processes: a review. Industrial & Engineering Chemistry Research , 2007, 46(18): 5824-5847
doi: 10.1021/ie070330t
|
| 7 |
Zhang K, Zhao Y. A scale-up strategy for low-temperature methanol synthesis in a circulating slurry bubble reactor. Chemical Engineering Science , 2006, 61(5): 1459-1469
doi: 10.1016/j.ces.2005.08.040
|
| 8 |
Urseanu M I, Guit R P M, Stankiewicz A, van Kranenburg G, Lommen J H G M. Influence of operating pressure on the gas hold-up in bubble columns for high viscous media. Chemical Engineering Science , 2003, 58(3-6): 697-704
doi: 10.1016/S0009-2509(02)00597-3
|
| 9 |
Boyer C, Duquenne A M, Wild G. Measuring techniques in gas-liquid and gas-liquid-solid reactors. Chemical Engineering Science , 2002, 57(16): 3185-3215
doi: 10.1016/S0009-2509(02)00193-8
|
| 10 |
Shollenberger K A, Torczynski J R, Adkins D R, O'Hern T J, Jackson N B. Gamma-densitometry tomography of gas holdup spatial distribution in industrial-scale bubble columns. Chemical Engineering Science , 1997, 52(13): 2037-2048
doi: 10.1016/S0009-2509(97)00032-8
|
| 11 |
Jin H, Yang S, Guo Z, He G, Tong Z. The axial distribution of holdups in an industrial-scale bubble column with evaluated pressure using gamma-ray attenuation approach. Chemical Engineering Journal , 2005, 115(1-2): 45-50
doi: 10.1016/j.cej.2005.09.003
|
| 12 |
Kalaga D V, Kulkarni A V, Acharya R, Kumar U, Singh G, Joshi J B. Some industrial applications of gamma-ray tomography. J Taiwan Inst Chem Eng , 2009, 40(6): 602-612
doi: 10.1016/j.jtice.2009.05.012
|
| 13 |
Bao X J, Wei W S, Liu Y S. Troubleshooting distillation column by gamma ray scanning technique. Chinese Journal of Chemical Engineering , 2002, 10(1): 52-55
|
| 14 |
Pike R W, Wilkins B, Ward H C. Measurement of the void fraction in two-phase flow by x-ray attenuation. AIChE Journal. American Institute of Chemical Engineers , 1965, 11(5): 794-800
doi: 10.1002/aic.690110510
|
| 15 |
Chen J, Rados N, Al-Dahhan M H, Dudukovi M P. Nguyen D, Parimi K. Particle motion in packed/ebullated beds by CT and CARPT. AIChE Journal. American Institute of Chemical Engineers , 2001, 47(5): 994-1004
doi: 10.1002/aic.690470506
|
| 16 |
Kumar S, Dudukovic M. Measurement techniques for local and global fluid dynamic quantities in two and three phase systems, in noninvasive monitoring of multiphase flows. Chaouki J, Larachi F, Dudukovic M P, eds. Amsterdam: Elsevier , 1997
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
| |
Shared |
|
|
|
|
| |
Discussed |
|
|
|
|
