Insights into Adsorption of Linear, Monobranched, and Dibranched Alkanes on Pure Silica STW Zeolite as a Promising Material for Their Separation
The adsorption of linear, monobranched and dibranched saturated hydrocarbons in the gasoline range has been studied on pure silica STW zeolite (Si-STW) by using pentane, hexane, and heptane isomers as model adsorbates. Experimental single-component adsorption isotherms and kinetic measurements toget...
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Published in | Journal of physical chemistry. C Vol. 124; no. 49; pp. 26821 - 26829 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
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American Chemical Society
10.12.2020
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Abstract | The adsorption of linear, monobranched and dibranched saturated hydrocarbons in the gasoline range has been studied on pure silica STW zeolite (Si-STW) by using pentane, hexane, and heptane isomers as model adsorbates. Experimental single-component adsorption isotherms and kinetic measurements together with configurational bias Monte Carlo (CBMC) and molecular dynamics (MD) simulations were carried out. Significant differences in both the equilibrium adsorption and especially the adsorption kinetics were found, which suggests that the separation of the quaternary-carbon dibranched isomer is feasible. The adsorption capacities and selectivities surpass those of pure silica MFI (Si-MFI), considered as reference. Altogether, Si-STW is presented as a promising adsorbent for increasing the octane number (ON) of the hydroisomerization product by selectively excluding quaternary-carbon dibranched hydrocarbons. |
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AbstractList | The adsorption of linear, monobranched and dibranched saturated hydrocarbons in the gasoline range has been studied on pure silica STW zeolite (Si-STW) by using pentane, hexane, and heptane isomers as model adsorbates. Experimental single-component adsorption isotherms and kinetic measurements together with configurational bias Monte Carlo (CBMC) and molecular dynamics (MD) simulations were carried out. Significant differences in both the equilibrium adsorption and especially the adsorption kinetics were found, which suggests that the separation of the quaternary-carbon dibranched isomer is feasible. The adsorption capacities and selectivities surpass those of pure silica MFI (Si-MFI), considered as reference. Altogether, Si-STW is presented as a promising adsorbent for increasing the octane number (ON) of the hydroisomerization product by selectively excluding quaternary-carbon dibranched hydrocarbons. |
Author | Sastre, German Valencia, Susana Sala, Andrés Corma, Avelino Palomino, Miguel Pérez-Botella, Eduardo Misturini, Alechania Rey, Fernando |
AuthorAffiliation | Universitat Politècnica de València − Consejo Superior de Investigaciones Científicas |
AuthorAffiliation_xml | – name: Universitat Politècnica de València − Consejo Superior de Investigaciones Científicas |
Author_xml | – sequence: 1 givenname: Eduardo orcidid: 0000-0001-5622-4693 surname: Pérez-Botella fullname: Pérez-Botella, Eduardo – sequence: 2 givenname: Alechania orcidid: 0000-0002-5873-8679 surname: Misturini fullname: Misturini, Alechania – sequence: 3 givenname: Andrés surname: Sala fullname: Sala, Andrés – sequence: 4 givenname: Miguel surname: Palomino fullname: Palomino, Miguel – sequence: 5 givenname: Avelino orcidid: 0000-0002-2232-3527 surname: Corma fullname: Corma, Avelino – sequence: 6 givenname: German orcidid: 0000-0003-0496-6331 surname: Sastre fullname: Sastre, German – sequence: 7 givenname: Susana surname: Valencia fullname: Valencia, Susana – sequence: 8 givenname: Fernando orcidid: 0000-0003-3227-5669 surname: Rey fullname: Rey, Fernando email: frey@itq.upv.es, direccion.itq@csic.es |
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Title | Insights into Adsorption of Linear, Monobranched, and Dibranched Alkanes on Pure Silica STW Zeolite as a Promising Material for Their Separation |
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