Surface intermediate species of the 4-isobutylacetophenone adsorption-reaction over fosfotungstic Wells-Dawson heteropoly acid [PDF]
, 2009 Surface adsorbed species of isobutylbenzene and 4-isobutylacetophenone on bulk fosfotungstic Wells-Dawson acid have been screened in the present investigation.
Briand, Laura Estefania +2 more
core +1 more source
Impact of Controlling the Site Distribution of Al Atoms on Catalytic Properties in Ferrierite-Type Zeolites [PDF]
, 2011 Zeolites with the ferrierite (FER) topology are synthesized using a combination of tetramethylammonium (TMA) cations with differently sized cyclic amines (pyrrolidine (Pyr), hexamethyleneimine (HMI), and 1,4- diazabicyclo[2.2.2]octane (DAB)).
Bhan A. +27 more
core +3 more sources
ChemCatChem, Volume 17, Issue 21, November 10, 2025.Desulfurization in the FCC riser is achieved by modifying zeolite catalysts with La3+ ions, promoting H2S formation from thiophenic compounds while suppressing secondary reactions. This approach enhances gasoline quality by increasing selectivity for H2S and enabling efficient condensation and alkylation, supporting cleaner fuel production and ...
Ronaldo C. Santos +8 more
wiley +1 more source
Chemie Ingenieur Technik, Volume 97, Issue 11-12, Page 1085-1093, November 2025.In this work, a machine learning framework is used to model and optimize the performance of metal/zeolite catalysts in FTS for liquid fuel production. CatBoost model showed high accuracy in predicting performance. Multi‐objective optimization identified the optimum operating conditions and catalyst formulation.
Mitra Jafari +2 more
wiley +1 more source
Kinetics and Mechanism of Ammonium Ion Adsorption Using Natural Zeolite - Mordenite [PDF]
, 2001 Mordenite, one of the natural zeolites , has the capacity to remove ammonium ion from wastewaters through adsorption phenomenon. This study is a preliminary work of using mordenite to remove ammonium in effluent for tertiary treatment. The feasibility
Halimoon, Normala
core
Zeolite deposits of possible economic significance on the northern Alaska Peninsula [PDF]
, 1982 Clinoptilolite, mordenite, haulandite and laumontite have been identified in possible economic concentrations on the Alaska Peninsula. Most important are 1) a haulandite bearing water-laid tuff on Agate Island, 2) a thick sequence of terrestrial ...
Madonna, J.A.
core
Interaction between zeolites and cluster compounds. Part 1.—Adsorption of iron pentacarbonyl on zeolites [PDF]
, 1983 The adsorption isotherms of Fe(CO)5 on NaY, HY and Linde L zeolites obtained in McBain balances show micropore adsorption, whereas additional capillary condensation is found with zeolite omega and Na-mordenite.
Bein, Thomas, Jacobs, Peter A.
core +1 more source
Studies of Modification of Zeolite by Tandem Acid-Base Treatments and Its Adsorptions Performance Towards Thorium [PDF]
, 2015 Hierarchical zeolite was prepared from natural zeolite using tandem acid-base treatments and applied as adsorbent for Th(IV) removal. Natural zeolite occurred naturally as microporous material.
Krisnandi, Y. K. (Y) +3 more
core +5 more sources
Simulation Of X-ray Diffraction Pattern Of A Various Kinds Of Natural Zeolite Crystal Using Rietan Program [PDF]
, 2003 The simulation analysis of natural zeolite crystal structure have been carried out using RIETAN program. The simulation results provide diffraction pattern of some crystal structure data representing as zeolite materials. There are two sets of input data
Suminta, S. (Supandi)
core
Characterization Of Natural Zeolite By X-ray Diffractometer [PDF]
, 2006 An identification of framework mineral structure of natural zeolit Bayah, Lampung and Malang was carried out by Reitveld methods. X ray diffraction intensity of Natural zeolit was measured by an X-Ray Diffractometer (XRD).
Suminta, S. (Supandi)
core