Removal of hydrogen sulfde from a binary mixture with methane gas, using IRMOF‑1 : a theoretical investigation

Rodrigues, Nailton Martins; Santos, Lucas J. dos; Rodrigues, Edna S. M.; Martins, João Batista Lopes

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Campo DC	Valor	Idioma
dc.contributor.author	Rodrigues, Nailton Martins	-
dc.contributor.author	Santos, Lucas J. dos	-
dc.contributor.author	Rodrigues, Edna S. M.	-
dc.contributor.author	Martins, João Batista Lopes	-
dc.date.accessioned	2024-07-04T14:45:04Z	-
dc.date.available	2024-07-04T14:45:04Z	-
dc.date.issued	2021-08-07	-
dc.identifier.citation	RODRIGUES, Nailton Martins et al. Removal of hydrogen sulfide from a binary mixture with methane gas, using IRMOF-1: a theoretical investigation. Journal of Molecular Modeling, [S. l.], v. 27, art. n. 240, 2021. DOI: https://doi.org/10.1007/s00894-021-04863-5.	pt_BR
dc.identifier.uri	http://repositorio2.unb.br/jspui/handle/10482/48531	-
dc.description	This paper belongs to the Topical Collection VIII Symposium on Electronic Structure and Molecular Dynamics – VIII SeedMol	pt_BR
dc.language.iso	eng	pt_BR
dc.publisher	Springer	pt_BR
dc.rights	Acesso Restrito	pt_BR
dc.title	Removal of hydrogen sulfde from a binary mixture with methane gas, using IRMOF‑1 : a theoretical investigation	pt_BR
dc.type	Artigo	pt_BR
dc.subject.keyword	Adsorção	pt_BR
dc.subject.keyword	Estruturas metal-orgânicas	pt_BR
dc.subject.keyword	Sulfureto de hidrogênio	pt_BR
dc.identifier.doi	https://doi.org/10.1007/s00894-021-04863-5	pt_BR
dc.relation.publisherversion	https://link.springer.com/article/10.1007/s00894-021-04863-5	pt_BR
dc.description.abstract1	The natural gas is mainly composed by methane, ethane, propane, and contaminants. Among these contaminants, the H2S gas has some specific characteristics such as its toxicity and corrosion, besides reducing the combustion power efficiency of natural gas. In this context, metal–organic frameworks appear as promising materials for purification of natural gas by adsorption, due to their large surface area and pore volume. In this work, Grand Canonical Monte Carlo method was used to study the adsorption and separation of CH4:H2S mixture by IRMOF-1. The adsorption isotherms were computed for the pure components, and at different compositions of binary mixture (90:10, 75:25, 50:50, 25:75, and 10:90). Interaction energy obtained with the semiempirical method confirmed that the inorganic unit is the preferred site for CH4 and H2S adsorption. Moreover, in a gas mixture with 50:50 proportion of CH4:H2S mixture, methane adsorbs preferentially in the inorganic unit only at pressures close to 20 bar. Non-covalent interaction (NCI) analyses indicated that the interactions involving H2S are more effective than that for CH4, due to an electrostatic character in the H2S interaction. The simulations also showed that the separation of gases occurs in all compositions and pressures studied, suggesting that IRMOF-1 has a promising potential for this application.	pt_BR
dc.identifier.orcid	https://orcid.org/0000-0003-0597-0375	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Instituto de Química	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Instituto de Química	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Instituto de Química	pt_BR
dc.contributor.affiliation	Universidade de Brasília, Instituto de Química	pt_BR
dc.description.unidade	Instituto de Química (IQ)	pt_BR
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