Otěr minerálních katalyzátorů ve fluidním zplyňovacím reaktoru

0380855 - ÚCHP 2013 RIV CZ cze J - Journal Article
Hartman, Miloslav - Svoboda, Karel - Pohořelý, Michael - Šyc, Michal
Otěr minerálních katalyzátorů ve fluidním zplyňovacím reaktoru.
[Attrition of a Mineral Catalyst in a Fluidized Bed Gasification Reactor.]
Chemické listy. Roč. 106, č. 9 (2012), s. 844-846. ISSN 0009-2770. E-ISSN 1213-7103
R&D Projects: GA AV ČR IAA400720701
Grant - others:RFCR(XE) CT2010-00009
Institutional support: RVO:67985858
Keywords : gasification of biomass * catalyst attrition * dolomites and limestones
Subject RIV: CI - Industrial Chemistry, Chemical Engineering
Impact factor: 0.453, year: 2012

S použitím vysokoteplotního fluidního reaktoru jsou vyšetřeny vlivy doby, rychlosti plynu a velikosti částic na rychlost otěru kalcinátu dolomitického vápence. Navržen jednoduchý model pro predikce průběhu otěru.

Experimental data are provided for the rate of attrition of lime particles in a fluidized bed reactor operated batchwise at 850oC. The influences of operating time (the elapsed time of fluidization / attrition), superficial gas velocity, and particle size were investigated with lime originated from a high-grade dolomitic limestone. A simple empirical model is presented which makes it possible to describe the rate of attrition (caused by abrasion) decaying exponentially with time. The attrition of particles is viewed as a complex interplay between the hydrodynamic forces in the bed and the mechanical strength of the bed material.
Permanent Link: http://hdl.handle.net/11104/0211463