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Title: Controlled synthesis of hierarchical ZSM-5 for catalytic fast pyrolysis of cellulose to aromatics

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/C8TA08930B· OSTI ID:1488520
 [1];  [2];  [3];  [4]; ORCiD logo [1];  [5]; ORCiD logo [5];  [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [6]
  1. Zhejiang University, Hangzhou (China)
  2. Zhejiang University, Hangzhou (China); Nanjing Tech University (China)
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  4. Univ. of Tennessee, Knoxville, TN (United States)
  5. Brookhaven National Lab. (BNL), Upton, NY (United States)
  6. Univ. of Tennessee, Knoxville, TN (United States) ; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Zeolite materials play a significant role throughout the oil refining and petrochemical industry. Microporous ZSM-5 has a high degree of crystallinity but low mass transfer, while hierarchical ZSM-5 shows a low degree of crystallinity as well as acidity. Here, we first report the synthesis of ZSM-5 with a new morphological structure, which has nanocrystalline ZSM-5 particles on the surface of an intact ZSM-5 zeolite. This not only improved the mass transfer in microporosity but also overcame disadvantages of hierarchical ZSM-5 including low degrees of crystallinity and acidity. This new and very efficient structure with both intracrystal microporosity and intercrystal macroporosity, formed by secondary crystallization after the intact ZSM-5 zeolite was synthesized, was verified by transmission electronic microscopy, N2 adsorption and desorption, and X-ray diffraction. Lastly, the obtained ZSM-5 zeolite showed a uniform size (~200 nm), high crystallinity acidity, and a suitable hierarchical structure that exhibited excellent properties in the catalytic fast pyrolysis of cellulose to produce aromatics.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
SC0012704; AC02-05CH11231
OSTI ID:
1488520
Alternate ID(s):
OSTI ID: 1478432
Report Number(s):
BNL-209804-2018-JAAM; JMCAET
Journal Information:
Journal of Materials Chemistry. A, Vol. 6, Issue 42; ISSN 2050-7488
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 32 works
Citation information provided by
Web of Science

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Technoeconomic and life-cycle analysis of single-step catalytic conversion of wet ethanol into fungible fuel blendstocks journal November 2019

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