Results 11 to 20 of about 4,597 (209)
Krypton retention on solid adsorbents. [Activated alumina; hydrogen mordenite, silver mordenite, sodium mordenite, cerium mordenite-H, cerium mordenite-Na, potassium mordenite-H, potassium mordenite-Na] [PDF]
, 1982 An experimental laboratory program was conducted to develop economical solid adsorbents for the retention of krypton from a dissolver off-gas stream. The study indicates that a solid adsorbent system is feasible and competitive with other developing systems which utilize fluorocarbon absorption nd cryogenic distillation.
Monson, P.R. Jr.
openaire +3 more sources
Organic-Free Synthesis of Finned Mordenite Zeolite [PDF]
Nanomaterials, 2022 Mordenite is a well-known zeolite widely used for industrial processes. However, its pore architecture can be inconvenient due to diffusional issues.
Rafael C. Lima +5 more
doaj +2 more sources
Dealumination of mordenite zeolite and its catalytic performance evaluation in m-xylene isomerization reaction [PDF]
Bulletin of the Chemical Society of Ethiopia, 2017 Mordenite zeolite with Si/Al = 18 was successfully synthesized by the hydrothermal method. This zeolite was modified by partially dealuminated in HNO3 at 70 °C. Our analysis showed that the surface area of modified mordenite was increased more than that
Z. V. Rahbari +2 more
doaj +2 more sources
Diagenetic mordenite from Ponza, Italy
European Journal of Mineralogy, 1995 Diagenetically altered rhyolitic rocks consisting of major mordenite and minor cristobalite and smectite occur beneath a thick (about 90 m) smectite-rich layer in an abandoned quarry at Cala Fontana, in the northwestern part of the Ponza Island (Thyrrenian Sea, Gulf of Gaeta). The structure of the mordenite was refined by full-profile Rietveld analysis
PASSAGLIA, Elio +3 more
core +5 more sources
Dual Chemical Looping/Catalytic Process for Alkylation of Benzene With Ethane and Propane Yielding Ethylbenzene and Cumene Over Copper-Containing Mordenite. [PDF]
Angew Chem Int Ed EnglWe report a dual chemical looping/catalytic process coupling alkane dehydrogenation with aromatic alkylation over Cu‐mordenite, yielding up to 25% alkylated aromatics with >95% selectivity per cycle. In situ NMR, FTIR spectroscopy, and DFT show alkylation proceeds via a π‐bound Cu(I)–olefin intermediate and Brønsted acid sites.
Dubray FJ +7 more
europepmc +3 more sources
Dealumination and Characterization of Natural Mordenite-Rich Tuffs [PDF]
, 2022 : The present study evaluates the feasibility of partially dealuminated natural mordenite as a catalyst support by studying improvement in its textural properties.
Ludeña, Eduardo V. +4 more
core +2 more sources
Chemistry, 2022 The geological nature of the territory of the Republic of Cuba has favoured the formation of large and varied deposits of volcanic tuffs enriched by various species of zeolites. Today, new zeolite deposits continue to be discovered in the country.
Jorge L. Costafreda +6 more
doaj +1 more source
Membranes, 2021 Post-treated mordenite membranes were prepared using sucrose (C12H22O11) as a carbon precursor to block any pinholes and defects in the zeolite layer. The pervaporation (PV) process was used to separate ethanol from the water.
Abdulaziz A. Alomair, Yousef Alqaheem
doaj +1 more source
Characterization of Fibrous Mordenite: A First Step for the Evaluation of Its Potential Toxicity
Crystals, 2020 In nature, a huge number of unregulated minerals fibers share the same characteristics as asbestos and therefore have potential adverse health effects. However, in addition to asbestos minerals, only fluoro-edenite and erionite are currently classified ...
Dario Di Giuseppe
doaj +1 more source
Bulletin of Chemical Reaction Engineering & Catalysis, 2021 The research about modification of mordenite characteristics has been performed by H2C2O4 and/or NaOH treatments and catalytic activity tests in hydrotreating of pyrolyzed a-cellulose.
Triyono Triyono +4 more
doaj +1 more source