Realization and control of multiple temperature zones in liquid-containing gas-solid fluidized bed reactor

AIChE Journal ◽  
2016 ◽  
Vol 62 (5) ◽  
pp. 1454-1466 ◽  
Author(s):  
Yefeng Zhou ◽  
Qiang Shi ◽  
Zhengliang Huang ◽  
Zuwei Liao ◽  
Jingdai Wang ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
And Control

Modelling, Identification and Control of a Fluidized Bed Reactor

1979 ◽  
Vol 12 (8) ◽  
pp. 907-916 ◽  
Author(s):  
S. Saelid ◽  
N.A. Jenssen ◽  
T. Lindstad ◽  
L. Kolbeinsen
Keyword(s):  
Fluidized Bed ◽  
Fluidized Bed Reactor ◽  
And Control

Particle agglomeration and control of gas-solid fluidized bed reactor with liquid bridge and solid bridge coupling actions

2017 ◽  
Vol 330 ◽  
pp. 840-851 ◽  
Author(s):  
Yefeng Zhou ◽  
Qiang Shi ◽  
Zhengliang Huang ◽  
Jingdai Wang ◽  
Yongrong Yang
Keyword(s):  
Fluidized Bed ◽  
Liquid Bridge ◽  
Fluidized Bed Reactor ◽  
Particle Agglomeration ◽  
And Control ◽  
Solid Bridge

Modeling and Control of Sludge Pyrolysis in a Fluidized Bed Reactor

2013 ◽  
Vol 846-847 ◽  
pp. 69-72
Author(s):  
Shi Li ◽  
Xi Ju Zong ◽  
Yan Hu
Keyword(s):  
Transfer Function ◽  
State Space ◽  
Fluidized Bed ◽  
State Space Model ◽  
Fluidized Bed Reactor ◽  
Transfer Function Model ◽  
Function Model ◽  
Modeling And Control ◽  
Space Model ◽  
And Control

This paper is concerns with the study of modeling and control of sludge pyrolysis in a fluidized bed reactor. Firstly, a mathematical model is established for sludge pyrolysis in a fluidized bed furnace, mass balance and energy equations are established. Then, the model is linearized at the steady-state point, two linear models are derived: state space model and transfer function model. The transfer function model is used in internal model control (IMC), where the filter parameter is selected and discussed. The state space model is applied in model predictive control (MPC), where controller parameters of prediction horizon length and control horizon length are discussed.

On-line automatic control system for monitoring an anaerobic fluidized-bed reactor: response to organic overload

1994 ◽  
Vol 30 (12) ◽  
pp. 11-20 ◽  
Author(s):  
René Moletta ◽  
Yves Escoffier ◽  
Frédéric Ehlinger ◽  
Jean-Pierre Coudert ◽  
Jean-Pierre Leyris
Keyword(s):  
Control System ◽  
Automatic Control ◽  
Fluidized Bed ◽  
Automatic Control System ◽  
Biological Process ◽  
Biogas Production ◽  
Fluidized Bed Reactor ◽  
On Line ◽  
Anaerobic Fluidized Bed Reactor ◽  
And Control

The aim of this study was to develop an automatic system based on selected parameters collected from the biological process to control a fluidized-bed reactor. In the first part of this study, identification of parameters sensitive to overloads was carried out with vinasses as wastewater. From these results, three parameters, considered as the most realistic for the monitoring of the reactor, were selected: pH in the liquid phase, the biogas production and its concentration of dihydrogen. These were used to develop an algorithm based on expert system principle. This automatic control system calculated the flow rate of the feeding pump in order to adjust continuously the load applied to the reactor. The system was used to monitor and control several kinds of overload in an anaerobic fluidized bed reactor, of laboratory and pilot scales. The strategy used was able to operate automatically the digesters.

Removal of microcystin-LR from drinking water with TiO2-coated activated carbon

2004 ◽  
Vol 4 (5-6) ◽  
pp. 21-28
Author(s):  
S.-C. Kim ◽  
D.-K. Lee
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Synergistic Effect ◽  
Fluidized Bed ◽  
Continuous Flow ◽  
High Surface ◽  
High Surface Area ◽  
Fluidized Bed Reactor ◽  
Exterior Surface ◽  
Tio2 Particles

TiO2-coated granular activated carbon was employed for the removal of toxic microcystin-LR from water. High surface area of the activated carbon provided sites for the adsorption of microcystin-LR, and the adsorbed microcystin-LR migrated continuously onto the surface of TiO2 particles which located mainly at the exterior surface in the vicinity of the entrances of the macropores of the activated carbon. The migrated microcystin-LR was finally degraded into nontoxic products and CO2 very quickly. These combined roles of the activated carbon and TiO2 showed a synergistic effect on the efficient degradation of toxic microcystin-LR. A continuous flow fluidized bed reactor with the TiO2-coated activated carbon could successfully be employed for the efficient photocatalytic of microcystin-LR.

Sign in / Sign up

Export Citation Format

Share Document