Results 21 to 30 of about 45,771 (311)

Catalytic applications of iron zeolites [PDF]

open access: yes, 2023
Lobo, Raul F.Making fuels from natural gas, biomass, and other sources has long been a goal and several solutions have been used. A promising solution is the methanol to hydrocarbons (MTH) reaction. This reaction converts methanol, a compound easily made
LaFollette, Mark R.
core   +1 more source

Influence of the fly ash fraction after grinding process on the hydrothermal synthesis efficiency of Na-A, Na-P1, Na-X and sodalite zeolite types

open access: yesInternational Journal of Coal Science & Technology, 2020
The fly ashes (Class F and C) have been successfully used as the main substrates in the hydrothermal syntheses of Na-A, Na-P1, Na-X and sodalite zeolites. Both ashes and their derivatives after milling with magnetic field grinder were used.
Piotr Kunecki   +4 more
doaj   +1 more source

Possibility of Modification of Zeolites by Iron Oxides and its Utilization for Removal of Pb(II) from Water Solutions [PDF]

open access: yesActa Montanistica Slovaca, 2004
Ion-exchange properties of cations from lattice and ions from solutions are characteristic for zeolites. Zeolites as sorbents are used in many branches of industry. Ion-exchange reactions of cations on zeolites have been a theme of many works.
Michal Lovás   +4 more
doaj  

Cryogenic Hydrogen Adsorption onto H-, Li-, Na-Exchanged Zeolites with Various Si/Al Ratios

open access: yesAdsorption Science & Technology, 2014
We investigated the hydrogen-adsorption properties of four zeolites (FAU-, MFI-, *BEA- and MOR-type zeolites) with various Si/Al ratios and charge cations (H + Li + or Na + ), focusing particularly on the measurements of isosteric heat of adsorption (Q ...
Masaru Kubo   +3 more
doaj   +1 more source

Zeolites and ordered mesoporous materials : progress and prospects : the 1st FEZA School on Zeolites, Prague, Czech Republic, August 20-21, 2005 / [PDF]

open access: yes, 2005
Zeolites are the most frequently used industrial catalysts. Their applications range from oil refining, petrochemistry and the synthesis of special chemicals to environmental catalysis.
FEZA School on Zeolites(1st :2005 :Prague, Czech Republic)   +2 more
core   +2 more sources

Kinetic and Thermodynamic Studies for Zeolites Synthesis

open access: yesZanco Journal of Pure and Applied Sciences, 2019
Zeolites are compounds which have many applications in chemistry and industry; therefore, studies of synthesis of zeolites are of great importance.
Rawand S. Abdullah   +3 more
doaj   +1 more source

Efficient transesterification over two-dimensional zeolites for sustainable biodiesel production

open access: yesGreen Energy & Environment, 2020
Basic zeolites have shown great potential as efficient catalysts for biodiesel production in the transesterification reactions. However, conventional three-dimensional (3D) basic zeolites generally suffer from limited base sites and severe mass-transfer ...
Hao Pang, Guoju Yang, Lin Li, Jihong Yu
doaj   +1 more source

Computer simulation of zeolites [PDF]

open access: yes, 1996
The application of a wide range of computational methods to several problems in zeolite chemistry is explored in this thesis. Symmetry-constrained lattice energy minimisations have been performed on a series of pure silica polymorphs using the shell ...
Henson, Neil Jon, Henson, Neil Jon.
core   +2 more sources

Ethiopian natural zeolites for photocatalysis

open access: yesBulletin of the Chemical Society of Ethiopia, 2015
The combination of zeolites and photochemistry has recently shown excellent results due to the special structure of the zeolites that helps a better use of the solar energy improving the selectivity of the chemical reactions carried out.
K. Guesh   +4 more
doaj   +1 more source

Zeolite synthesis from low-cost materials and environmental applications: A review

open access: yesEnvironmental Advances, 2020
Zeolites with the three-dimensional structures occur naturally or can be synthesized in the laboratory. Zeolites have versatile applications such as environmental remediation, catalytic activity, biotechnological application, gas sensing and medicinal ...
Abdul Khaleque   +10 more
doaj   +1 more source

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