Modelling of Fluidized Bed Hydrodynamics for a Ca-looping System

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Modelling of Fluidized Bed Hydrodynamics for a Ca-looping System

Popis výsledku v původním jazyce

This paper presents mathematical model of a Ca-looping (CaL) system based on detailed calculation of a circulating fluidized bed (CFB) hydrodynamics and chemical kinetics. The system is designed to capture CO2 from flue gas from 250 kWth pilot-scale combustor and consists of two CFB reactors, called carbonator and calciner. Both reactors are operated in a fast-fluidization regime where the fluidized bed creates a dense bottom zone and a lean upper zone. In a radial cross-section, the solids fraction decreases from a dense wall zone to the lean core zone according the core-annulus model. The CO2 capture efficiency depends on various parameters, but it is mostly affected by the residence time of active solids in the carbonator, which can be determined from the CFB hydrodynamics model. Detailed parametrization of the CO2 capture efficiency is presented within this paper.

Název v anglickém jazyce

Modelling of Fluidized Bed Hydrodynamics for a Ca-looping System

Popis výsledku anglicky

This paper presents mathematical model of a Ca-looping (CaL) system based on detailed calculation of a circulating fluidized bed (CFB) hydrodynamics and chemical kinetics. The system is designed to capture CO2 from flue gas from 250 kWth pilot-scale combustor and consists of two CFB reactors, called carbonator and calciner. Both reactors are operated in a fast-fluidization regime where the fluidized bed creates a dense bottom zone and a lean upper zone. In a radial cross-section, the solids fraction decreases from a dense wall zone to the lean core zone according the core-annulus model. The CO2 capture efficiency depends on various parameters, but it is mostly affected by the residence time of active solids in the carbonator, which can be determined from the CFB hydrodynamics model. Detailed parametrization of the CO2 capture efficiency is presented within this paper.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20704 - Energy and fuels

Projekt

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Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

PROCEEDINGS of the 5th International Conference on Chemical Technology

ISBN

978-80-86238-62-3

ISSN

2336-8128

e-ISSN

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Počet stran výsledku

6

Strana od-do

361-366

Název nakladatele

Czech Society of Industrial Chemistry

Místo vydání

Prague

Místo konání akce

Mikulov

Datum konání akce

10. 4. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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