Controlled synthesis of hierarchical ZSM-5 for catalytic fast pyrolysis of cellulose to aromatics
Journal Article
·
· Journal of Materials Chemistry. A
- Zhejiang University, Hangzhou (China)
- Zhejiang University, Hangzhou (China); Nanjing Tech University (China)
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
- Univ. of Tennessee, Knoxville, TN (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- 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; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Chemical Sciences, Geosciences & Biosciences Division
- Grant/Contract Number:
- AC02-05CH11231; SC0012704
- OSTI ID:
- 1488520
- Alternate ID(s):
- OSTI ID: 1478432
- Report Number(s):
- BNL--209804-2018-JAAM
- Journal Information:
- Journal of Materials Chemistry. A, Journal Name: Journal of Materials Chemistry. A Journal Issue: 42 Vol. 6; ISSN JMCAET; ISSN 2050-7488
- Publisher:
- Royal Society of ChemistryCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Technoeconomic and life-cycle analysis of single-step catalytic conversion of wet ethanol into fungible fuel blendstocks
|
journal | November 2019 |
Similar Records
Diffusion of aromatic hydrocarbons in hierarchical mesoporous H-ZSM-5 zeolite
Towards the preparation of binderless ZSM-5 zeolite catalysts: the crucial role of silanol nests
Journal Article
·
Wed Feb 07 19:00:00 EST 2018
· Catalysis Today
·
OSTI ID:1424576
Towards the preparation of binderless ZSM-5 zeolite catalysts: the crucial role of silanol nests
Journal Article
·
Sun Dec 06 19:00:00 EST 2020
· Catalysis Science and Technology
·
OSTI ID:1702403