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ZSM-5

Development of Alkylation Toluene with Methanol for Fuel on Modified ZSM 5 Zeolites by Amphoteric Surfactant

Development of Alkylation Toluene with Methanol for Fuel on Modified ZSM 5 Zeolites by Amphoteric Surfactant

... the ZSM-5 catalyst substituted with (Sr) of the percent weight of ...2.5%, 5%, and 10% Sr. We have observed that 2.5 wt% Sr/ZSM-5 catalyst gives the highest activity and 5% ...

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Ultrasound assisted electro-Fenton process including Fe-ZSM-5 nanocatalyst for degradation of Phenazopyridine

Ultrasound assisted electro-Fenton process including Fe-ZSM-5 nanocatalyst for degradation of Phenazopyridine

... PHP removal efficiency is increased at pH of 7. This phenomenon can be explained by electrostatic interactions due to surface charges of the nanocatalyst and ionization state of PHP. At pH levels higher than pH pzc of ...

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Application of Inelastic Neutron Scattering to the Methanol-to-Gasoline Reaction Over a ZSM-5 Catalyst

Application of Inelastic Neutron Scattering to the Methanol-to-Gasoline Reaction Over a ZSM-5 Catalyst

... with ZSM-5 at room ...grade ZSM-5 catalyst exposed to a methanol feedstream at 623 ...to ZSM-5 at room temperature, this communi- cation describes an investigation performed at ...

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Synthesis and Characterization of Hierarchical ZSM 5 Zeolites with Outstanding Mesoporosity and Excellent Catalytic Properties

Synthesis and Characterization of Hierarchical ZSM 5 Zeolites with Outstanding Mesoporosity and Excellent Catalytic Properties

... hierarchical ZSM- 5 zeolites with outstanding mesoporosity and high hierarchy ...hierarchical ZSM-5 zeolites are in size of about 1 μ m, which are made up of nanocrystals of 60 – 150 ...

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The Role of Ethanol, Methyltriphenylphosphonium Bromide and Cetyltrimethylammonium Bromide as Directing Agents in Hydrothermal Synthesis of Aluminosilicate Molecular Sieve (ZSM-5) and Its Morphologies

The Role of Ethanol, Methyltriphenylphosphonium Bromide and Cetyltrimethylammonium Bromide as Directing Agents in Hydrothermal Synthesis of Aluminosilicate Molecular Sieve (ZSM-5) and Its Morphologies

... According to the results of Table 3, the hydrothermal transformation of gels with CTABr as template (runs 12, 13) was amorphous. By increasing crystallization time (run 14) from 1 to 2 days, or decreasing aging time (run ...

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Mechanistic insights into the desorption of methanol and dimethyl ether over ZSM 5 catalysts

Mechanistic insights into the desorption of methanol and dimethyl ether over ZSM 5 catalysts

... over ZSM-5 catalysts with different Si/Al ...over ZSM-5 catalysts, while two of them cannot be distinguished in the sample with a Si/Al ratio of 135 and were observed as a single ...

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Esterification of Benzyl Alcohol with Acetic Acid over Mesoporous H-ZSM-5

Esterification of Benzyl Alcohol with Acetic Acid over Mesoporous H-ZSM-5

... forming an intermediate of protonated AA, which increases the electrophilicity of carbonyl carbon [18,19]. The H-ZSM-5 mesoporous cata- lyst facilitates the protonation of the carbonyl oxygen atom, due to ...

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Dehydration of Methanol to Dimethyl Ether Employing Modified H-ZSM-5 Catalysts

Dehydration of Methanol to Dimethyl Ether Employing Modified H-ZSM-5 Catalysts

... The BET surface areas, total pore volumes and average pore diameters of the parent and modified H-ZSM-5 zeolites are provided in Table 2. The BET surface areas and total pore volumes have decreased in the ...

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Reactivity of mesoporous ZSM-5 zeolite towards Friedel-Crafts acylation of anisole and propionic anhydride

Reactivity of mesoporous ZSM-5 zeolite towards Friedel-Crafts acylation of anisole and propionic anhydride

... reactions. ZSM-5 zeolite is a microporous aluminosilicate catalyst which is not suitable for reactionsinvolving large ...Therefore, ZSM-5 with mesopores size needs to be ...mesoporous ...

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Effects of ZSM-5 Preparation Conditions on Textural Properties and Catalytic Cracking of n-Hexane

Effects of ZSM-5 Preparation Conditions on Textural Properties and Catalytic Cracking of n-Hexane

... The molar ratio of the reactants was 40SiO 2 : Al 2 O 3 : 3.5TPABr: xNaOH: yH 2 O, and alkalinity was controlled by varying x and y. Moreover, sodium metaaluminate (0.297 g) was dissolved in 16.5 mL of deionized water, ...

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Effect of Nano-TiO2 Immobilized on Activated Carbon, Zeolite Y and ZSM-5 on the Removal of Styrene Vapors from Polluted Air

Effect of Nano-TiO2 Immobilized on Activated Carbon, Zeolite Y and ZSM-5 on the Removal of Styrene Vapors from Polluted Air

... and ZSM-5-zeolite adsorbents are used separately in the reactor, styrene is just transported from gaseous phase to the solid phase and after a while, the adsorbent is ...and ZSM- 5/TiO 2 ...

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Ammonia storage studies on H-ZSM-5 zeolites by microwave cavity perturbation: correlation of dielectric properties with ammonia storage

Ammonia storage studies on H-ZSM-5 zeolites by microwave cavity perturbation: correlation of dielectric properties with ammonia storage

... Figure 1. Example of a resonance curve of an H-ZSM-5 zeolite with Si / Al ratio of 27 at 250 ◦ C: (a) the decrease of the resonance frequency from an empty sample tube (black) over a filled one with- out ...

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A Comparative Study of M/ZSM-5 (M = Pd, Ag, Cu, Ni) Catalysts in the Selective Reduction of Nitrogen (II) Oxide by Ammonia

A Comparative Study of M/ZSM-5 (M = Pd, Ag, Cu, Ni) Catalysts in the Selective Reduction of Nitrogen (II) Oxide by Ammonia

... According to the literature [19], the reduction profile of PdO is attributed by a single peak at 55°C. Two reduction profiles are observed for the Pd/ZSM-5 catalysts. The first TPR peak temperature of ...

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Adsorption and photocatalytic removal of dimethylarsenic acid using titania and zinc oxide thiol functionalized ZSM-5 zeolite

Adsorption and photocatalytic removal of dimethylarsenic acid using titania and zinc oxide thiol functionalized ZSM-5 zeolite

... Historically, ZSM-5 catalyst was first successfully synthesized by Argauer and Landolt in the year of 1972 (Kokotailo et ...1978). ZSM-5 zeoliteis made up of channels defined by ten-membered ...

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Catalytic Performance of M ZSM 5 Catalysts for Conversion of 5α cholestanol and Cinnamic Alcohol

Catalytic Performance of M ZSM 5 Catalysts for Conversion of 5α cholestanol and Cinnamic Alcohol

... The oxidation of alcohols to ketones and aldehydes is probably one of the most common transformations [1,2]. There are many of homogeneous and heterogeneous catalysts to carry out this transformation; among the most ...

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Synthesis and Characterization of Nanocrystalline ZSM-5 Molecular Sieve from Ethylene Diamine Template

Synthesis and Characterization of Nanocrystalline ZSM-5 Molecular Sieve from Ethylene Diamine Template

... other words, the XRA/ZSM-5 materials must have crystals which contain less than 4 unit cells. We studied the pore structure of Nanocrystalline ZSM- 5 by high resolution transmission electron ...

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Fabrication of high purity silica from rice husk and its conversion into 
		ZSM 5

Fabrication of high purity silica from rice husk and its conversion into ZSM 5

... ZSM-5 synthesized from the RHA, and Figures 8c and 8d are that synthesized from the CA-RHA. Generally, cubic crystals are noted in all cases, but impure material appeared in the figures-8a and 8b. Figure-8c ...

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Validation and Optimization of Exhaust Gas Flow Control Parameters toControl CO2 Emission with the Aid of Pre heated ZSM 5 Zeolite Supported by Lime Water Testing

Validation and Optimization of Exhaust Gas Flow Control Parameters toControl CO2 Emission with the Aid of Pre heated ZSM 5 Zeolite Supported by Lime Water Testing

... pre-activated ZSM-5 zeolite pellets of high porosity property were utilised to absorb carbon- dioxide from exhaust gas through after treatment ...of ZSM-5 zeolite ...

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Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

Effect of ZSM-5 Acidity in Enhancement of Methanol-to-Olefins Process

... conventional ZSM-5 ...Thus, ZSM-5 modification process shows a decrease in acid sites strength, which slows down channel blockage, thereby improving catalytic ...modified ZSM-5 ...

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ZSM-5 Zeolite As Host Material for Semiconductor Nanoparticles

ZSM-5 Zeolite As Host Material for Semiconductor Nanoparticles

... particles and CoSZSM-5. From the onset of the adsorption edge, the band gap of the nanoparticles was calculated using the method of Tandon and Gupta [16]. From table 1, it can be found that the band gap increase ...

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