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Title: Enhanced selectivity of zeolites by controlled carbon deposition

Abstract

A method for carbonizing a zeolite comprises depositing a carbon coating on the zeolite pores by flowing an inert carrier gas stream containing isoprene through a regenerated zeolite at elevated temperature. The carbonized zeolite is useful for the separation of light hydrocarbon mixtures due to size exclusion and the differential adsorption properties of the carbonized zeolite.

Inventors:
; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-CA), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175734
Patent Number(s):
7,041,616
Application Number:
10/414,184
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Nenoff, Tina M., Thoma, Steven G., and Kartin, Mutlu. Enhanced selectivity of zeolites by controlled carbon deposition. United States: N. p., 2006. Web.
Nenoff, Tina M., Thoma, Steven G., & Kartin, Mutlu. Enhanced selectivity of zeolites by controlled carbon deposition. United States.
Nenoff, Tina M., Thoma, Steven G., and Kartin, Mutlu. 2006. "Enhanced selectivity of zeolites by controlled carbon deposition". United States. https://www.osti.gov/servlets/purl/1175734.
@article{osti_1175734,
title = {Enhanced selectivity of zeolites by controlled carbon deposition},
author = {Nenoff, Tina M. and Thoma, Steven G. and Kartin, Mutlu},
abstractNote = {A method for carbonizing a zeolite comprises depositing a carbon coating on the zeolite pores by flowing an inert carrier gas stream containing isoprene through a regenerated zeolite at elevated temperature. The carbonized zeolite is useful for the separation of light hydrocarbon mixtures due to size exclusion and the differential adsorption properties of the carbonized zeolite.},
doi = {},
url = {https://www.osti.gov/biblio/1175734}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue May 09 00:00:00 EDT 2006},
month = {Tue May 09 00:00:00 EDT 2006}
}

Works referenced in this record:

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On the topography and morphology of carbon deposits prepared by pyrolysis of alcohols on the surface of silica gel
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Deactivation of medium pore zeolite catalysts by butadiene during n-butene isomerization
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Characterization of the Coke Formed Duringo-Xylene Isomerization over Mordenites at Various Temperatures
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Chemistry and kinetics of chemical vapour deposition of pyrocarbon
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In-situ FTIR measurements of diffusion in coking zeolite catalysts
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Molecular Modeling of Carbonaceous Compounds Formed Inside the Pores of FER Zeolite during Skeletal Isomerization of n -Butene
journal, May 2000


Preparation of highly selective zeolite ZSM-5 membranes by a post-synthetic coking treatment
journal, January 1997


m-Xylene Transformation over a USHY Zeolite at 523 and 723 K: Influence of Coke Deposits on Activity, Acidity, and Porosity
journal, November 2000


Influence of coke on the acid properties of a USHY zeolite
journal, August 2000


Use of NMR techniques for studying deactivation of zeolites by coking
journal, February 1995