A model for transient diffusion in bidisperse pore structures

Abstract A bidisperse model for transient diffusion and adsorption processes in porous materials is presented in this paper. The mathematical model is solved by numerical methods based on finite elements combined with the linear driving force approximation. A criterion based on the model to identify...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Wei Sun, Sheng-Li Chen, Ming-Ri Xu, Ya-Qian Wei, Ting-Ting Fan, Bao-Li Ma, Jin-Tao Guo
Formato:	article
Lenguaje:	EN
Publicado:	KeAi Communications Co., Ltd. 2019
Materias:	Transient diffusion Adsorption Bidisperse pores Macropore Micropore Linear driving force Science Q Petrology QE420-499
Acceso en línea:	https://doaj.org/article/e896cd931c99410e90774435aa714392
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:e896cd931c99410e90774435aa714392
record_format	dspace
spelling	oai:doaj.org-article:e896cd931c99410e90774435aa7143922021-12-02T10:17:02ZA model for transient diffusion in bidisperse pore structures10.1007/s12182-019-0338-21672-51071995-8226https://doaj.org/article/e896cd931c99410e90774435aa7143922019-06-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-0338-2https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract A bidisperse model for transient diffusion and adsorption processes in porous materials is presented in this paper. The mathematical model is solved by numerical methods based on finite elements combined with the linear driving force approximation. A criterion based on the model to identify the diffusion controlling mechanism (macropore diffusion, micropore diffusion, or both) is proposed. The effects of different adsorption isotherms (linear, Freundlich, or Langmuir) on the concentration profiles and on curves of fractional uptake versus time are investigated. In addition, the influences of model parameters concerning the pore networks on the fractional uptake are studied as well.Wei SunSheng-Li ChenMing-Ri XuYa-Qian WeiTing-Ting FanBao-Li MaJin-Tao GuoKeAi Communications Co., Ltd.articleTransient diffusionAdsorptionBidisperse poresMacroporeMicroporeLinear driving forceScienceQPetrologyQE420-499ENPetroleum Science, Vol 16, Iss 6, Pp 1455-1470 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	Transient diffusion Adsorption Bidisperse pores Macropore Micropore Linear driving force Science Q Petrology QE420-499
spellingShingle	Transient diffusion Adsorption Bidisperse pores Macropore Micropore Linear driving force Science Q Petrology QE420-499 Wei Sun Sheng-Li Chen Ming-Ri Xu Ya-Qian Wei Ting-Ting Fan Bao-Li Ma Jin-Tao Guo A model for transient diffusion in bidisperse pore structures
description	Abstract A bidisperse model for transient diffusion and adsorption processes in porous materials is presented in this paper. The mathematical model is solved by numerical methods based on finite elements combined with the linear driving force approximation. A criterion based on the model to identify the diffusion controlling mechanism (macropore diffusion, micropore diffusion, or both) is proposed. The effects of different adsorption isotherms (linear, Freundlich, or Langmuir) on the concentration profiles and on curves of fractional uptake versus time are investigated. In addition, the influences of model parameters concerning the pore networks on the fractional uptake are studied as well.
format	article
author	Wei Sun Sheng-Li Chen Ming-Ri Xu Ya-Qian Wei Ting-Ting Fan Bao-Li Ma Jin-Tao Guo
author_facet	Wei Sun Sheng-Li Chen Ming-Ri Xu Ya-Qian Wei Ting-Ting Fan Bao-Li Ma Jin-Tao Guo
author_sort	Wei Sun
title	A model for transient diffusion in bidisperse pore structures
title_short	A model for transient diffusion in bidisperse pore structures
title_full	A model for transient diffusion in bidisperse pore structures
title_fullStr	A model for transient diffusion in bidisperse pore structures
title_full_unstemmed	A model for transient diffusion in bidisperse pore structures
title_sort	model for transient diffusion in bidisperse pore structures
publisher	KeAi Communications Co., Ltd.
publishDate	2019
url	https://doaj.org/article/e896cd931c99410e90774435aa714392
work_keys_str_mv	AT weisun amodelfortransientdiffusioninbidisperseporestructures AT shenglichen amodelfortransientdiffusioninbidisperseporestructures AT mingrixu amodelfortransientdiffusioninbidisperseporestructures AT yaqianwei amodelfortransientdiffusioninbidisperseporestructures AT tingtingfan amodelfortransientdiffusioninbidisperseporestructures AT baolima amodelfortransientdiffusioninbidisperseporestructures AT jintaoguo amodelfortransientdiffusioninbidisperseporestructures AT weisun modelfortransientdiffusioninbidisperseporestructures AT shenglichen modelfortransientdiffusioninbidisperseporestructures AT mingrixu modelfortransientdiffusioninbidisperseporestructures AT yaqianwei modelfortransientdiffusioninbidisperseporestructures AT tingtingfan modelfortransientdiffusioninbidisperseporestructures AT baolima modelfortransientdiffusioninbidisperseporestructures AT jintaoguo modelfortransientdiffusioninbidisperseporestructures
_version_	1718397446537609216

A model for transient diffusion in bidisperse pore structures

Ejemplares similares