Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

A quantitative study of the structure–activity relationship in hierarchical zeolites using liquid‐phase reactions

Journal Article · · AIChE Journal
DOI:https://doi.org/10.1002/aic.16503· OSTI ID:1489321
 [1];  [1];  [2];  [1];  [1];  [1];  [3];  [4];  [4];  [5];  [2];  [1];  [6]
  1. Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414
  2. Division of Environmental Science and Engineering Pohang University of Science and Technology Pohang Korea 37673
  3. Division of Chemistry and Chemical Engineering California Institute of Technology Pasadena California 91125
  4. Dept. of Chemical Engineering, The Petroleum Institute Khalifa University of Science and Technology Abu Dhabi UAE
  5. Dept. of Chemical and Biomolecular Engineering University of Maryland College Park Maryland 20740
  6. Dept. of Chemical Engineering and Materials Science University of Minnesota Minneapolis Minnesota 55414, Dept. of Chemical and Biomolecular Engineering Johns Hopkins University Baltimore Maryland 21218, Institute for NanoBioTechnology Johns Hopkins University Baltimore Maryland 21218

Micro/meso/macroporous (hierarchical) zeolites show remarkable catalytic performance for reactions involving bulky reactants. However, quantitative assessment of the microstructural characteristics contributing to the observed performance remains elusive. Here, structure–activity relationships are established for a set of micro/mesoporous self‐pillared pentasil (SPP) zeolites using two parallel liquid‐phase reactions (benzyl alcohol alkylation and self‐etherification) based on analysis of mass transport and reaction kinetics. A reaction–diffusion mathematical model is developed that quantitatively assigns the catalytic contributions of the external surface and micropores of SPP zeolites for these reactions. In addition, the effect of the zeolite external surface structure on the corresponding catalytic activity is quantitatively assessed by comparing SPP zeolites (with MFI structure) with MCM‐22 (with MWW structure). This work demonstrates that reaction–diffusion modeling allows quantitative description of the catalytic performance of hierarchical zeolites and provides a model reaction to assess nm‐sized characteristic diffusion lengths in MFI. © 2018 American Institute of Chemical Engineers AIChE J , 65: 1067–1075, 2019

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0001004
OSTI ID:
1489321
Alternate ID(s):
OSTI ID: 1566399
Journal Information:
AIChE Journal, Journal Name: AIChE Journal Journal Issue: 3 Vol. 65; ISSN 0001-1541
Publisher:
Wiley Blackwell (John Wiley & Sons)Copyright Statement
Country of Publication:
United States
Language:
English

References (41)

On the Synthesis and Adsorption Properties of Single-Unit-Cell Hierarchical Zeolites Made by Rotational Intergrowths journal September 2013
Zeolitic Materials with Hierarchical Porous Structures journal April 2011
2-dimensional zeolites journal May 2014
A Hierarchical MFI Zeolite with a Two-Dimensional Square Mesostructure journal December 2017
Expanding the Horizons of Hierarchical Zeolites: Beyond Laboratory Curiosity towards Industrial Realization journal September 2011
Realizing the Commercial Potential of Hierarchical Zeolites: New Opportunities in Catalytic Cracking journal September 2013
Determination of Integrated Molar Extinction Coefficients for Infrared Absorption Bands of Pyridine Adsorbed on Solid Acid Catalysts journal June 1993
2,6-Di-Tert-Butyl-Pyridine as a Probe Molecule to Measure External Acidity of Zeolites journal October 1998
Alkylation of Benzene with Short-Chain Olefins over MCM-22 Zeolite: Catalytic Behaviour and Kinetic Mechanism journal May 2000
Nucleation, Growth, and Robust Synthesis of SPP Zeolite: Effect of Ethanol, Sodium, and Potassium journal April 2015
On the critical use of molar absorption coefficients for adsorbed species: the methanol/silica system journal October 2001
Recent advances in the industrial alkylation of aromatics: new catalysts and new processes journal April 2002
Comparison between the surface acidity of solid catalysts determined by TPD and FTIR analysis of pre-adsorbed pyridine journal October 1999
Liquid phase benzylation of benzene and toluene with benzyl alcohol over modified zeolites journal August 2006
Catalysis with hierarchical zeolites journal June 2011
Zeolite-based materials for novel catalytic applications: Opportunities, perspectives and open problems journal January 2012
Friedel–Crafts alkylation properties of aluminosilica SBA-15 meso/macroporous monoliths and mesoporous powders☆ journal January 2004
Titration and quantification of open and closed Lewis acid sites in Sn-Beta zeolites that catalyze glucose isomerization journal March 2016
Activity and selectivity differences of external Brønsted acid sites of single-unit-cell thick and conventional MFI and MWW zeolites journal December 2014
Quantification of external surface and pore mouth acid sites in unit-cell thick pillared MFI and pillared MWW zeolites journal March 2017
Nickel impregnated mesoporous USY zeolites for hydrodeoxygenation of anisole journal May 2018
Catalytic Behavior of Brønsted Acid Sites in MWW and MFI Zeolites with Dual Meso- and Microporosity journal December 2010
Catalytic Benzene Alkylation over Mesoporous Zeolite Single Crystals:  Improving Activity and Selectivity with a New Family of Porous Materials journal November 2003
Layer Structure Preservation during Swelling, Pillaring, and Exfoliation of a Zeolite Precursor journal January 2008
2,6-Di- tert- butylpyridine Sorption Approach to Quantify the External Acidity in Hierarchical Zeolites journal May 2014
Delaminated zeolite precursors as selective acidic catalysts journal November 1998
Kinetics of the catalytic cracking of naphtha over ZSM-5 zeolite: effect of reduced crystal size on the reaction of naphthenes journal January 2014
Hierarchy concepts: classification and preparation strategies for zeolite containing materials with hierarchical porosity journal January 2016
Catalytic test reactions for the evaluation of hierarchical zeolites journal January 2016
Disruptive catalysis by zeolites journal January 2016
Quantification of acidic sites of nanoscopic hydroxylated magnesium fluorides by FTIR and 15 N MAS NMR spectroscopy journal January 2015
Simple quantification of zeolite acid site density by reactive gas chromatography journal January 2017
Hierarchical zeolites: enhanced utilisation of microporous crystals in catalysis by advances in materials design journal January 2008
Tailored crystalline microporous materials by post-synthesis modification journal January 2013
Porous materials in catalysis: challenges for mesoporous materials journal January 2013
Hierarchical porous materials: catalytic applications journal January 2013
Hierarchically structured zeolites: synthesis, mass transport properties and applications journal January 2012
Mesoporosity – a new dimension for zeolites journal January 2013
Synthesis of Self-Pillared Zeolite Nanosheets by Repetitive Branching journal June 2012
MCM-22: A Molecular Sieve with Two Independent Multidimensional Channel Systems journal June 1994
Synthesis and catalytic applications of combined zeolitic/mesoporous materials journal January 2011

Similar Records

A quantitative study of the structure-activity relationship in hierarchical zeolites using liquid-phase reactions
Journal Article · Tue Jan 01 23:00:00 EST 2019 · AIChE Journal · OSTI ID:1566399

Direct, single-step synthesis of hierarchical zeolites without secondary templating
Journal Article · Mon Nov 24 19:00:00 EST 2014 · Journal of Materials Chemistry. A · OSTI ID:1210431

Steam-Induced Coarsening of Single-Unit-Cell MFI Zeolite Nanosheets and Its Effect on External Surface Brønsted Acid Catalysis
Journal Article · Sat Feb 29 19:00:00 EST 2020 · Angewandte Chemie (International Edition) · OSTI ID:1767524

Related Subjects