Modeling of Gas-Solid Flow in a CFB Riser Based on Computational Particle Fluid Dynamics
Researchers from China University of Petroleum use CPFD modeling to create a three-dimensional model for gas-solid flow in a circulating fluidized bed (CFB).
Researchers from China University of Petroleum use CPFD modeling to create a three-dimensional model for gas-solid flow in a circulating fluidized bed (CFB).
Authors: Jong, J.F. de, T.Y.N. Dang, M. van Sint Annaland, and J.A.M. Kuipers. Source: This paper was published in Powder Technology. Abstract: Fluidized bed membrane reactors gain worldwide increasing interest…
In a FLUID COKING unit, reactor cyclone fouling by coke deposits can set the run length of the unit. It was found that the CFD model could quantitatively predict coke distributions in the freeboard region of a FLUID COKING reactor experimental rig, while providing insight into the flow dynamics.
Standpipes provide the pressure balance in a circulating fluidized bed and thereby dictate the solid flux into the riser. This research explains the role of aeration ins standpipe flow.
Researchers in Canada use an early version of Barracuda Virtual Reactor to predict local solid densification and asymmetric “wavy flows” in downer reactors.
This study by researchers at the Hamburg University of Technology and Tsinghua University investigated the applicability of CPFD for simulating flows in CFB risers for Geldart group A and B particles for low and high solids fluxes.
Experimental operation of three fluidized bed processors is compared with CFD simulation results by Parker, Williams, and Thibault, CPFD Software, and LaMarche, Chen, and Stamato, Bristol-Myers Squibb Company.
In this paper, a comprehensive three-dimensional numerical model has been developed to simulate the coal gasification in a fluidized bed gasifier using a multiphase particle-in-cell (MP-PIC) method, and the formation of flow patterns, profiles of particle species and gas compositions, distributions of reaction rates and consumption of carbon mass were investigated under different operating conditions.
This paper demonstrates the advantages of the energy-minimization multiscale (EMMS) model compared to a conventional model for a full-loop industrial-scaled CFB boiler, including successfully predicting the pressure profile of the furnace.
This paper, by authors at CPFD Software and Biomasse Italia, describes the optimization of a CFB boiler in order to minimize erosion considering overall performance.