Mostrar el registro sencillo del ítem

dc.contributor.author
Costanza, Vicente
dc.contributor.author
Costanza, Pedro
dc.date.available
2017-12-10T15:44:14Z
dc.date.issued
2002-12
dc.identifier.citation
Costanza, Vicente; Costanza, Pedro; Estimating Pure Diffusion Contributions in Alkaline Pulping Processes; Plapiqui; Latin American Applied Research; 32; 12-2002; 151-159
dc.identifier.issn
0327-0793
dc.identifier.uri
http://hdl.handle.net/11336/30064
dc.description.abstract
A model that predicts isothermal alkali diffusion and reaction with acetyl groups in moist wood chips was derived and approximated. System parameters were estimated from unsteady-state experimental data. Simulation results reinforce the idea that the diffusion effect is not fully exploited in pulping processes. Traditionally, digestion is conducted at high temperature, where delignification reaction kinetics is enhanced and the reaction effect is predominant. This approach is being reviewed by modern industry since energy and environmental savings associated with low temperature operation might compensate for high-yield productivity. The concentration of alkali at the center of the chip is a measure of the completeness of wood deacetylation, which translates into the aptitude of the final product for pulping purposes. This concentration is predicted here from the solution to a pair of coupled ODE’s. Since alternatives combining both low and high-temperature processes are being studied, the results in this paper provide basic data for optimization analysis.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Plapiqui
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Reaction–Diffusion
dc.subject
Wood Pulping
dc.subject
Alkaline Pulping
dc.subject
Impregnation
dc.subject
Transport Phenomena
dc.subject.classification
Otras Ingeniería Química
dc.subject.classification
Ingeniería Química
dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
dc.title
Estimating Pure Diffusion Contributions in Alkaline Pulping Processes
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2017-11-24T13:44:07Z
dc.identifier.eissn
1851-8796
dc.journal.volume
32
dc.journal.pagination
151-159
dc.journal.pais
Argentina
dc.description.fil
Fil: Costanza, Vicente. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.description.fil
Fil: Costanza, Pedro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Desarrollo Tecnológico para la Industria Química. Universidad Nacional del Litoral. Instituto de Desarrollo Tecnológico para la Industria Química; Argentina
dc.journal.title
Latin American Applied Research
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.laar.uns.edu.ar/indexes/artic_v3202/32_(2002)_151_159.pdf


Archivos asociados

 

Comunidades y colecciones

  • Articulos(INTEC) [1412]
    Articulos de INST.DE DES.TECNOL.PARA LA IND.QUIMICA (I)

Mostrar el registro sencillo del ítem