Separation Performance in a Novel Coupled Cyclone with Built-in Circulating Granular Bed Filter (C-CGBF)

Abstract

A compact dedust scheme coupling a cyclone with a built-in circulating granular bed filter (C-CGBF) for continuous hot gas cleanup is introduced. The effects of the operation parameters including the inlet dust concentrations, the inlet gas flow rates and the granules circulation fluxes on the separation performance of the C-CGBF are experimentally investigated using the FCC catalyst particles in a cold model setup. Experimental results reveal that stable/ high collection efficiency, generally higher than 98%, is achieved. A real-time monitoring method is developed for timely reflecting the instantaneous variation of the granules circulation flux, in which way a notable critical flux is observed as the transition from the fixed bed into the moving bed regime. The individual separation contributions of the cyclone and the built-in granular bed are both estimated. The particles collected by them are also analyzed respectively for comparing their size distributions.

Numerical Study on a Novel Type of High Gravity Rotary Gas-Liquid Separator

“…For the best performance, the inlet angle should be kept with 10-15°. In view of the inefficiency on 5-10 μm particles, the literature (Huang et al 2018;Gao et al 2018;Safikhani et al 2016) had made some innovations and developed several new separators. These separators have reasonable pressure drop, and the separation efficiency is greatly improved.…”

Effects of the Swirl Space Ratio on the Performance of a Coupling Cyclone with a Built-In Granular Bed Filter: An Experimental Examination

“…The difference was that the cross-flow GBF was used in their studies. Gao et al − conducted detailed experiments to figure out the composition of the pressure drop. You et al reported that the maximum tangential velocity was located at the inlet section, which was around 1.2 times larger than the inlet gas velocity based on the simulation results.…”