LrgpV1, PascalFrancis, Corpus, bibRecord, 000800

Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model

Identifieur interne : 000800 ( PascalFrancis/Corpus ); précédent : 000799; suivant : 000801

Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model

Auteurs : B. Dussoubs ; J. Jourde ; F. Patisson ; J.-L. Houzelot ; D. Ablitzer

Source :

Chemical engineering science [ 0009-2509 ] ; 2003.

RBID : Pascal:03-0414333

Abstract

The French nuclear fuel making route uses, prior to enrichment, uranium tetrafluoride UF₄ obtained from the reduction, followed by hydrofluorination of uranium trioxide UO₃. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF₄ quality and underlines the strong coupling between the different zones of the furnace. Finally, the model is applied to define an optimal temperature progression in the furnace and suggests geometrical modifications. Besides, the validity of using the law of additive reaction times for calculating the reaction rates in such a reactor model has been checked for the first time against a numerical grain model.

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Pour connaître la documentation sur le format Inist Standard.

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A02	`01`			`@0 CESCAC`
A03		`1`		`@0 Chem. eng. sci.`
A05				`@2 58`
A06				`@2 12`
A08	`01`	`1`	`ENG`	`@1 Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model`
A11	`01`	`1`		`@1 DUSSOUBS (B.)`
A11	`02`	`1`		`@1 JOURDE (J.)`
A11	`03`	`1`		`@1 PATISSON (F.)`
A11	`04`	`1`		`@1 HOUZELOT (J.-L.)`
A11	`05`	`1`		`@1 ABLITZER (D.)`
A14	`01`			`@1 Laboratoire de Science et Génie des Matériaux et de Métallurgie, Ecole des Mines, Parc de Saurupt, UMR CNRS 7584 @2 54042 Nancy @3 FRA @Z 1 aut. @Z 3 aut. @Z 5 aut.`
A14	`02`			`@1 Comurhex, Usine de Malvési, B.P. 222 @2 11102 Narbonne @3 FRA @Z 2 aut.`
A14	`03`			`@1 Laboratoire des Sciences du Génie Chimique, ENSIC, 47, rue Henri Déglin @2 54001 Nancy @3 FRA @Z 4 aut.`
A20				`@1 2629-2642`
A21				`@1 2003`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 7538 @5 354000111261830130`
A44				`@0 0000 @1 © 2003 INIST-CNRS. All rights reserved.`
A45				`@0 6 ref.`
A47	`01`	`1`		`@0 03-0414333`
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A61				`@0 A`
A64	`01`	`1`		`@0 Chemical engineering science`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 The French nuclear fuel making route uses, prior to enrichment, uranium tetrafluoride UF₄ obtained from the reduction, followed by hydrofluorination of uranium trioxide UO₃. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF₄ quality and underlines the strong coupling between the different zones of the furnace. Finally, the model is applied to define an optimal temperature progression in the furnace and suggests geometrical modifications. Besides, the validity of using the law of additive reaction times for calculating the reaction rates in such a reactor model has been checked for the first time against a numerical grain model.
C02	`01`	`X`		`@0 001D06B04C`
C02	`02`	`X`		`@0 230`
N21				`@1 286`
N82				`@1 PSI`

Format Inist (serveur)

NO :	PASCAL 03-0414333 INIST
ET :	Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model
AU :	DUSSOUBS (B.); JOURDE (J.); PATISSON (F.); HOUZELOT (J.-L.); ABLITZER (D.)
AF :	Laboratoire de Science et Génie des Matériaux et de Métallurgie, Ecole des Mines, Parc de Saurupt, UMR CNRS 7584/54042 Nancy/France (1 aut., 3 aut., 5 aut.); Comurhex, Usine de Malvési, B.P. 222/11102 Narbonne/France (2 aut.); Laboratoire des Sciences du Génie Chimique, ENSIC, 47, rue Henri Déglin/54001 Nancy/France (4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Chemical engineering science; ISSN 0009-2509; Coden CESCAC; Royaume-Uni; Da. 2003; Vol. 58; No. 12; Pp. 2629-2642; Bibl. 6 ref.
LA :	Anglais
EA :	The French nuclear fuel making route uses, prior to enrichment, uranium tetrafluoride UF₄ obtained from the reduction, followed by hydrofluorination of uranium trioxide UO₃. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF₄ quality and underlines the strong coupling between the different zones of the furnace. Finally, the model is applied to define an optimal temperature progression in the furnace and suggests geometrical modifications. Besides, the validity of using the law of additive reaction times for calculating the reaction rates in such a reactor model has been checked for the first time against a numerical grain model.
CC :	001D06B04C; 230
LO :	INIST-7538.354000111261830130
ID :	03-0414333

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Le document en format XML

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<front><div type="abstract" xml:lang="en">The French nuclear fuel making route uses, prior to enrichment, uranium tetrafluoride UF<sub>4</sub>
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. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF<sub>4</sub>
 quality and underlines the strong coupling between the different zones of the furnace. Finally, the model is applied to define an optimal temperature progression in the furnace and suggests geometrical modifications. Besides, the validity of using the law of additive reaction times for calculating the reaction rates in such a reactor model has been checked for the first time against a numerical grain model.</div>
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 obtained from the reduction, followed by hydrofluorination of uranium trioxide UO<sub>3</sub>
. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF<sub>4</sub>
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<ET>Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model</ET>
<AU>DUSSOUBS (B.); JOURDE (J.); PATISSON (F.); HOUZELOT (J.-L.); ABLITZER (D.)</AU>
<AF>Laboratoire de Science et Génie des Matériaux et de Métallurgie, Ecole des Mines, Parc de Saurupt, UMR CNRS 7584/54042 Nancy/France (1 aut., 3 aut., 5 aut.); Comurhex, Usine de Malvési, B.P. 222/11102 Narbonne/France (2 aut.); Laboratoire des Sciences du Génie Chimique, ENSIC, 47, rue Henri Déglin/54001 Nancy/France (4 aut.)</AF>
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<EA>The French nuclear fuel making route uses, prior to enrichment, uranium tetrafluoride UF<sub>4</sub>
 obtained from the reduction, followed by hydrofluorination of uranium trioxide UO<sub>3</sub>
. These two steps are carried out in a specific reactor known as a moving bed furnace. We developed a steady-state numerical model of the moving bed furnace, described in Part 1. In the Part 2, calculation results for a reference set of operating parameters of the furnace are presented in term of temperature, reaction rates, solid and gas compositions. Results analysis enlightens the detail of the furnace behaviour in its different zones. Unknown features have been revealed, such as thermodynamic limitation of the hydrofluorination reaction in the hot core of the moving bed. A sensibility study of various operating parameters shows how some can influence the UF<sub>4</sub>
 quality and underlines the strong coupling between the different zones of the furnace. Finally, the model is applied to define an optimal temperature progression in the furnace and suggests geometrical modifications. Besides, the validity of using the law of additive reaction times for calculating the reaction rates in such a reactor model has been checked for the first time against a numerical grain model.</EA>
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Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model

Modelling of a moving bed furnace for the production of uranium tetrafluoride. Part 2: Application of the model

Source :

Abstract

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Format Inist (serveur)

Links to Exploration step

Le document en format XML

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