TITLE

Conformation of confined alkanes: n-butane in zeolite Y

AUTHOR(S)
Bandyopadhyay, Sanjoy; Yashonath, Subramanian
PUB. DATE
October 1996
SOURCE
Journal of Chemical Physics;10/22/1996, Vol. 105 Issue 16, p7223
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Configurational-bias Monte Carlo simulation of n-butane in NaY zeolite has been reported at different temperatures and loadings. In contrast to n-butane in silicalite, the gauche conformer population is always found to be higher in zeolite NaY than in pure fluid at the same density. Normally, an increase in adsorbate concentration in gases such as methane, rare gases, etc. leads to an increase in population near the cage centre. In contrast, we find that an increase in n-butane concentration gives rise to an increase in population near the periphery of the cage. Enhancement in gauche conformer population observed for NaY zeolite is attributed to the surface curvature of the α-cavity. © 1996 American Institute of Physics.
ACCESSION #
7640013

 

Related Articles

  • Liquid-phase adsorption of binary mixtures of alkanes. Yusubov, F.; Zeinalov, R.; Ibragimov, Ch.; Babaev, R. // Chemistry & Technology of Fuels & Oils;Jul2006, Vol. 42 Issue 4, p293 

    The isotherms of excess adsorption of mixtures of n-octane and n-hexadecane and isooctane and n-hexadecane on different adsorbents-activated carbons TA 120 and TA 95, silica gel, and zeolite 5A-were determined. The expediency of using zeolite 5A for separation of n-alkanes was established. The...

  • n-alkanes on MgO(100). I. Coverage-dependent desorption kinetics of n-butane. Tait, Steven L.; Dohnálek, Zdenek; Campbell, Charles T.; Kay, Bruce D. // Journal of Chemical Physics;4/22/2005, Vol. 122 Issue 16, p164707 

    High-quality temperature-programmed desorption (TPD) measurements of n-butane from MgO(100) have been made for a large number of initial butane coverages (0–3.70 ML, ML–monolayers) and a wide range of heating ramp rates (0.3–10 K/s). We present a TPD analysis technique which...

  • Alkane activation: Adsorption and reaction of n-butane on clean and carbided W(100). Liu, A. C.; Friend, C. M. // Journal of Chemical Physics;10/15/1987, Vol. 87 Issue 8, p4975 

    The adsorption and reaction of n-butane have been investigated on clean and carbided W(100) surfaces using temperature programmed reaction spectroscopy, Auger electron spectroscopy, low energy electron diffraction, and isotopic exchange methods. For the clean surface, the initial adsorption...

  • al·kane.  // American Heritage Student Science Dictionary;2009, p9 

    A definition of the term "alkane" is presented. It refers to any of a group of hydrocarbons whose carbon atoms form chains linked by single bonds. Alkanes include propane and butane.

  • Butane as a fuel. Verma, S. S. // Chemical Business;May2011, Vol. 25 Issue 5, p42 

    The article provides information on the uses and health effects of butane fuel. The boiling point of gasoline is reduced by butane which makes it safe during extreme heat waves. One of the advantages of butane fuel is its ability to turn into liquid quickly. Some of the health issues caused by...

  • Diffusion mechanisms of normal alkanes in faujasite zeolites. Clark, Louis A.; Ye, George T. // Journal of Chemical Physics;7/15/1999, Vol. 111 Issue 3, p1209 

    Studies diffusion mechanisms of normal alkanes in faujasite zeolites. Comparison of liquid and adsorbed phases; Chain conformations and motional frequencies; Influence of local environment on molecular relaxation; Shifts in preferred absorption sites.

  • Study of the products of benzene transformation in the presence of argon, hydrogen, and propane-butane mixture in barrier discharge. Kudryashov, S.; Perevezentsev, S.; Ryabov, A.; Shchegoleva, G.; Sirotkin, E. // Petroleum Chemistry;Jan2012, Vol. 52 Issue 1, p60 

    The conversion of benzene in a medium of Ar, H, and propane-butane mixture in a dielectric-barrier discharge reactor, accompanied by polymerization yielding liquid and solid compounds, has been investigated. The amount of polymerization products reaches 79.7 wt %. Addition of H to benzene...

  • Transformations in gas mixtures based on butane under irradiation in the circulation mode. Bludenko, A.; Chulkov, V.; Ponomarev, A. // High Energy Chemistry;Nov2007, Vol. 41 Issue 6, p403 

    Radiolysis of gaseous mixtures based on n-butane was studied in the circulation mode of irradiation, and the component composition of liquid products was measured. The apparent yield of n-butane decomposition is 13.7 molecules/100 eV. Radiolysis is accompanied by a monotonous decrease in the...

  • bu·tane.  // American Heritage Student Science Dictionary;2009, p51 

    A definition of the term "butane" is presented. It refers to an organic compound of carbon and hydrogen, found in natural gas and produced from petroleum. Butane is used as a fuel, refrigerant and propellant in aerosol cans.

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics