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   Articles with "bea" as a keyword



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In‐situ IR Spectroscopy Study of Reactions of C3 Oxygenates on Heteroatom (Sn, Mo, and W) doped BEA Zeolites and the Effect of Co‐adsorbed Water

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recommendations! Published in 2020 at "ChemCatChem"

DOI: 10.1002/cctc.202001424

Abstract: The reactions of acetone and hydroxyacetone over heteroatom doped BEA zeolites (Sn, Mo, and W) in the presence and absence of H2O vapor are investigated using infrared spectroscopy. Acetone is converted to mesityl oxide over… read more here.

Keywords: bea; heteroatom doped; bea zeolites; adsorbed water ... See more keywords
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Utilizing break‐even analysis in a competitive laser market

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recommendations! Published in 2018 at "Lasers in Surgery and Medicine"

DOI: 10.1002/lsm.22753

Abstract: A break-even analysis (BEA) is often used in the business world to determine exactly when the business will be able to cover all of its expenses and generate profit. A BEA can be particularly useful… read more here.

Keywords: bea; laser; variable costs; analysis ... See more keywords
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Magnetic Anastomosis for Biliojejunostomy: First Prospective Clinical Trial

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recommendations! Published in 2018 at "World Journal of Surgery"

DOI: 10.1007/s00268-018-4710-y

Abstract: AbstractBackgroundMagnetic compression anastomosis (magnamosis, MCA) has been verified safe and effective by us and others in animal bilioenteric anastomosis (BEA). The objective of the present study was to introduce clinical application of magnetic compression bilioenteric… read more here.

Keywords: bea; magnetic anastomosis; anastomosis biliojejunostomy; bilioenteric anastomosis ... See more keywords
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Using Brief Experimental Analysis to Identify the Right Math Intervention at the Right Time

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recommendations! Published in 2019 at "Journal of Behavioral Education"

DOI: 10.1007/s10864-019-09324-x

Abstract: Brief experimental analysis (BEA) is a methodology of rapidly implementing interventions and observing the effect each has on student performance. Extensive research exists demonstrating the utility of BEA in identifying effective reading interventions for students,… read more here.

Keywords: bea; brief experimental; intervention; experimental analysis ... See more keywords
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Palladium/Beta zeolite passive NOx adsorbers (PNA): Clarification of PNA chemistry and the effects of CO and zeolite crystallite size on PNA performance

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recommendations! Published in 2019 at "Applied Catalysis A: General"

DOI: 10.1016/j.apcata.2018.10.021

Abstract: Abstract Model 0.3 wt% and 1 wt% Pd/Beta was synthesized with nano-sized Beta crystals (average size O2 in dry streams promotes NO storage via additional formation of nitrosyl (NO+) ions; it also leads to stabilization of significant… read more here.

Keywords: bea; beta; storage; chemistry ... See more keywords
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Synthesis and performance of high efficient diesel oxidation catalyst based on active metal species-modified porous zeolite BEA

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recommendations! Published in 2019 at "Journal of Catalysis"

DOI: 10.1016/j.jcat.2019.09.029

Abstract: Abstract With the appearance of the low temperature combustion (LTC) diesel engines, diesel oxidation catalyst (DOC) becomes more and more important in removing the CO and hydrocarbons (HC) emitted from LTC diesel engines, especially in… read more here.

Keywords: bea; oxidation; diesel; metal ... See more keywords
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Hydrothermal deactivation over CuFe/BEA for NH3-SCR

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recommendations! Published in 2018 at "Journal of Industrial and Engineering Chemistry"

DOI: 10.1016/j.jiec.2018.04.009

Abstract: Abstract Hydrothermal deactivation over CuFe/BEA and CuFe/BEA-HT for the selective catalytic reduction of NO with NH 3 (NH 3 -SCR) were investigated with different characterizations. The hydrothermal treatment destroys BEA skeleton, losing acid sites reacting… read more here.

Keywords: bea; deactivation cufe; hydrothermal deactivation; cufe bea ... See more keywords
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Choreographing boron-aluminum acidity and hierarchical porosity in *BEA zeolite by in-situ hydrothermal synthesis for a highly selective methanol to propylene catalyst

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recommendations! Published in 2019 at "Microporous and Mesoporous Materials"

DOI: 10.1016/j.micromeso.2018.06.036

Abstract: A successful incorporation of boron into (star)BEA zeolite framework has been achieved using a in situ hydrothermal synthesis in the presence of aluminum-(star)BEA seeds. Interestingly, the boron-(star)BEA crystals exhibited a cubic morphology with a remarkable… read more here.

Keywords: bea zeolite; bea; boron; star bea ... See more keywords
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Power-to-methane over Ni/zeolites: Influence of the framework type

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recommendations! Published in 2019 at "Microporous and Mesoporous Materials"

DOI: 10.1016/j.micromeso.2018.07.037

Abstract: Abstract In the present work, the effect of the zeolite framework type on the performances of Ni-based catalysts for CO2 methanation was studied. For this purpose, four zeolite frameworks presenting similar Si/Al ratios (∼40) and… read more here.

Keywords: framework type; bea; zsm mor; zeolite ... See more keywords
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Steam catalytic cracking of n-dodecane over Ni and Ni/Co bimetallic catalyst supported on hierarchical BEA zeolite

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recommendations! Published in 2017 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.7b00468

Abstract: Steam catalytic cracking was performed over metal modified BEA zeolite. Nickel and cobalt were introduced to the desilicated BEA zeolite by substitution treatment. The method of metal incorporation used here allowed incorporation of the metal(s)… read more here.

Keywords: bea; catalytic cracking; steam catalytic; bea zeolite ... See more keywords
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Hydrothermal Stabilization of Rich Al–BEA Zeolite by Post-Synthesis Addition of Zr for Steam Catalytic Cracking of n-Dodecane

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recommendations! Published in 2018 at "Energy & Fuels"

DOI: 10.1021/acs.energyfuels.8b00087

Abstract: The steam cracking of n-dodecane was performed over Zr-modified BEA zeolite. The parent H–BEA zeolite was modified via Zr introduction following earlier treatment (desilication and dealumination). The procedure allowed for achievement of a Si/Zr molar… read more here.

Keywords: bea; bea zeolite; dodecane; spectroscopy ... See more keywords