Topic
Downer
About: Downer is a research topic. Over the lifetime, 384 publications have been published within this topic receiving 4615 citations.
Papers published on a yearly basis
Papers
TL;DR: A comprehensive review on the development of fundamental researches on downer reactors as well as the particular industrial demonstrations for the fluid catalytic cracking (FCC) of heavy oils and coal pyrolysis in thermal plasma can be found in this article.
126 citations
TL;DR: In this article, the CFD-DEM coupled approach was used to simulate the complex gas-solid reacting flows in fluid catalytic cracking (FCC) processes accommodated in riser or downer reactors.
116 citations
TL;DR: In this article, a numerical study of particle cluster behavior in a riser/downer reactor by means of combined computational fluid dynamics (CFD) and discrete element method (DEM), in which the motion of discrete particles is obtained by solving Newton's equations of motion and the flow of continuum gas by the Navier-Stokes equations.
109 citations
TL;DR: In this article, a k p equation expressing the turbulent kinetic energy of particles is introduced to represent the turbulent transport of particulate phase in the downer downer, and a function of restitution coefficient with radial positions is applied to consider the wall effect on the hydrodynamics in downer based on physical understanding.
94 citations
TL;DR: In this article, the radial distributions of the local solids holdups and the pressure gradients along the downer column were measured to characterize the local and overall gas-solid flow structure, using a fiber optical solids concentration probe and a series of pressure transducers.
90 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2022 | 1 |
| 2021 | 17 |
| 2020 | 25 |
| 2019 | 22 |
| 2018 | 8 |
| 2017 | 15 |