Open AccessAdsorption of CO2, N2, CH4, and their mixtures on silicalite: A critical evaluation of force fields
Author(s) -
Sarah Arvelos,
Thalles Senna Diógenes,
Carla Eponina Hori,
Lucienne Lobato Romanielo
Publication year - 2020
Publication title -
chemical industry and chemical engineering quarterly
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.189
H-Index - 26
eISSN - 2217-7434
pISSN - 1451-9372
DOI - 10.2298/ciceq190428011a
Subject(s) - force field (fiction) , adsorption , trustworthiness , transferability , molecular dynamics , reliability (semiconductor) , simple (philosophy) , computer science , materials science , field (mathematics) , work (physics) , process engineering , biological system , power (physics) , chemistry , thermodynamics , computational chemistry , engineering , physics , mathematics , artificial intelligence , machine learning , computer security , philosophy , biology , pure mathematics , logit , epistemology
The use of molecular simulation has been growing in the field of engineering, fueled not just by the advances in computational power but also on the availability of reliable software. One potential use of molecular simulation is related to the screening of materials for a specific application. The reliability of molecular simulation results depends on the trustworthiness of the force field used, which for engineering purposes should be as simple as possible. This work provides an evaluation of the potential accuracy cost of using simple generic force fields to predict the adsorption of CO2, CH4, N2 and their mixtures on MFI. We employed the GCMC technique for this investigation. Different models and force fields to describe adsorbates and adsorbent were tested. The force fields performances were estimated through comparison with available adsorption experimental data. Transferability was evaluated on the prediction of pure and mixtures adsorption on CHA, LTA and FER. The results showed that a simple force field presented similar performance when compared to a more sophisticated one.