Results 11 to 20 of about 729,228 (244)

Catalyst Deactivation Simulation Through Carbon Deposition in Carbon Dioxide Reforming over Ni/CaO-Al2O3 Catalyst [PDF]

open access: yes, 2011
Major problem in CO2 reforming of methane (CORM) process is coke formation which is a carbonaceous residue that can physically cover active sites of a catalyst surface and leads to catalyst deactivation.
Amin, N.A.S.   +3 more
core   +2 more sources

EFFECT OF PREPARATION METHOD OF Ni CATALYST USING BENTONITE AS THE SUPPORT MATERIAL

open access: yesIndonesian Journal of Chemistry, 2010
Nickel catalyst has been prepared impregnation and precipitation with nickel content of 20% and 25% each using bentonite as support material. The effects of the preparation method were studied using temperature programmed oxidation (TPO) and temperature ...
Hery Haerudin   +3 more
doaj   +1 more source

Transition metal chalcogenide bifunctional catalysts for chemical recycling by plastic hydrocracking: a single-source precursor approach

open access: yesRoyal Society Open Science, 2022
Sulfided nickel, an established hydrocracking and hydrotreating catalyst for hydrocarbon refining, was synthesized on porous aluminosilicate supports for the hydrocracking of mixed polyolefin waste.
Aleksander A. Tedstone   +3 more
doaj   +1 more source

The Urushibara Catalyst for Glycerol Hydrogenolysis

open access: yesChemical Engineering Transactions, 2023
This work aimed to study the catalytic activity of catalysts containing various metal elements on glycerol hydrogenolysis. The catalyst was prepared using copper, nickel, and copper-nickel in a metal mass ratio of 1.
Penjit Srinophakun   +5 more
doaj   +1 more source

Is it possible to detect in situ the sulfur loading of a fixed bed catalysts with a sensor? [PDF]

open access: yesJournal of Sensors and Sensor Systems, 2015
This study reports on a sensor concept to measure in situ sulfur poisoning (sulfidation) of refinery catalysts, in this case, of commercial silica pellets loaded with highly dispersed nickel.
P. Fremerey, A. Jess, R. Moos
doaj   +1 more source

Nickel—Alumina Catalysts for the Transformation of Vegetable Oils into Green Diesel: The Role of Preparation Method, Activation Temperature, and Reaction Conditions

open access: yesNanomaterials, 2023
Two nickel alumina catalysts containing 60 wt. % Ni were synthesized by wet impregnation and co-precipitation in order to study the effect of preparation methods on the catalytic efficiency concerning the transformation of sunflower oil into green diesel.
Ioannis Nikolopoulos   +6 more
doaj   +1 more source

Catalyst in Basic Oleochemicals [PDF]

open access: yes, 2007
Currently Indonesia is the world largest palm oil producer with production volume reaching 16 million tones per annum. The high crude oil and ethylene prices in the last 3 – 4 years contribute to the healthy demand growth for basic oleochemicals: fatty ...
Abun Lie   +11 more
core   +3 more sources

APPLICATION OF INCIPIENT WET IMPREGNATION (IWI) METHODOLOGY IN THE SYNTHESIS OF Ni/SiO2 CATALYSTS FOR HYDRODEOXYGENATION PROCESSES [PDF]

open access: yesJournal of Sustainable Energy, 2023
The development of efficient catalysts is crucial for various industrial processes, including petrochemical production, hydrogenation reactions, and environmental remediation.
AFOLABI O., ONWONA. A.
doaj  

In Situ Hydrodeoxygenation of Guaiacol Using Magnetic Catalysts and Heterogeneous Hydrogen Producer

open access: yesChemical Engineering Transactions, 2021
This research aims to figure out the effect of nickel, cobalt, iron powders and alumina-supported nickel catalyst on the hydrodeoxygenation (HDO) of guaiacol using zero-valent Zn as heterogenous hydrogen producer.
Lingyu Tai   +4 more
doaj   +1 more source

Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production

open access: yesMATEC Web of Conferences, 2018
Nickel is commonly used as a catalyst in hydrogen production. However, the use of nickel catalysts in the steam reforming process has the disadvantage of coke formation and high cost.
Widayat Widayat   +3 more
doaj   +1 more source

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