Studies of transport of asphaltenes through porous membranes: statistical structural models and continuum hydrodynamic theories

Autor:	Ian A. Webster, V. S. Ravi-Kumar, Theodore T. Tsotsis, Muhammad Sahimi
Rok vydání:	1994
Předmět:	Membrane Continuum (measurement) Chemistry Applied Mathematics General Chemical Engineering Porous membrane Monte Carlo method Thermodynamics General Chemistry Industrial and Manufacturing Engineering Asphaltene
Zdroj:	Chemical Engineering Science. 49:5789-5801
ISSN:	0009-2509
DOI:	10.1016/0009-2509(94)00330-0
Popis:	The results of our ongoing studies of the transport os asphaltene molecules through model membranes are presented. The experimental results are briefly reviewed, and a model is presented which aims to capture the effect on the transport of the polydisperse nature of the asphaltene molecules. The asphaltene molecular structure is first generated stochastically using a Monte Carlo technique. The individual asphaltene molecules are then approximated as spheroids for the purpose of calculating their hindered diffusivities. Continuum hydrodynamic theories of hindered diffusion are then used to calculate the individual transport coefficients.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::28d2e613d54ea592370a91c8f7c4c938 https://doi.org/10.1016/0009-2509(94)00330-0 Zobrazit plný text záznamu