Results 51 to 60 of about 1,890 (210)

Benchtop NMR Spectroscopy of Pyrolysis Oils From Mixed Plastic Waste: Parameter Optimization for Oil Characterization and Detection of Heteroatom‐Containing Compounds

Chemistry–Methods, Volume 6, Issue 6, June 2026.
In this article, benchtop‐NMR spectroscopy was evaluated as an analytical method for the characterization of plastic waste derived pyrolysis oils. The signal‐to‐noise ratio was enhanced via measurement parameter optimization and optimization of postacquisition parameters.
Anika Goecke, Jonas Vogt, Salar Tavakkol, Shahram Mihan, Volker Fraaije, Ricardo Kurz, Diana Dötsch, Dieter Stapf, Manfred Wilhelm   +8 more
wiley   +1 more source

The use of sulfide cluster-derived catalysts to understand the promotional effect in hydrotreatment catalysis [PDF]

, 1992
Sulfide cluster-derived ensembles are promising models of the active sites in commercial hydrotreatment catalysts. A series of sulfide clusters were adsorbed intact onto high-surface-area Γ-alumina, magnesium oxide and activated carbon supports, then ...
Brenner, James R., Thompson, Levi T., L T Thompson, Carvill, B. T., B T Carvill, J R Brenner   +5 more
core   +1 more source

Effect of Catalyst Bed Arrangement on the Conversion of Processed Palm Oil into Bio-Jet Fuel Using Co/ZSM-5 Catalyst

Indonesian Journal of Chemistry
The growing demand for sustainable aviation fuels has driven the development of efficient catalyst materials. This study aimed to investigate the physicochemical properties of the Co/ZSM-5 catalyst, evaluate the effect of catalyst bed arrangement (single-
Pangestu Arum Pratiwi, Triyono Triyono, Wega Trisunaryanti, Adyatma Bhagaskara, Dita Adi Saputra   +4 more
doaj   +1 more source

Evaluation of Zeolite-based Catalyst Supports for the Production of Biokerosene by Hydrotreating of Oils

Chemical Engineering Transactions, 2019
In order to optimize the conditions for the biofuels production by a hydrotreatment process, three platinum catalysts supported on different zeolites were evaluated.
Manuel Mayorga, Juan Cadavid, Jose Martinez, Luis Rodriguez, C. A. Trujillo, Mauricio Lopez, Javier Bonilla, Camilo Lopez   +7 more
doaj   +1 more source

Hydrotreatment of Nylon 66 and Amide Model Compounds Over Sulfided NiMo Catalysts

ChemCatChem, Volume 18, Issue 9, 14 May 2026.
Hydrotreatment of nylon‐66 and the model amide N,N‐dibutylhexanediamide over sulfided NiMo/Al2O3 reveals competing hydrodenitrogenation and hydrodeoxygenation pathways, without formation of heterocyclic products. Pathway selectivity is influenced by reaction conditions and differs between the model compound and the real nylon sample.
Boda Yang, Cheng Zhu, Oliver Y. Gutiérrez, Sungmin Kim, Huamin Wang   +4 more
wiley   +1 more source

Catalytic Hydrotreatment Unit of Diesel Cut. [PDF]

, 2015
In this bachelor work the catalytic hydrotreatment unit of diesel cut with 2 300 000 tones per year is being designed. In this process the diesel fraction is cleaned from sulphuric, oxygen and nitrous compounds.
Vasiliauskas, Mantas,
core  

Simulation of Green Diesel by Hydrotreatment of Waste Vegetable Oil

Engineering Proceedings
Due to the world’s rising energy demand and reliance on fossil fuels, exploring cleaner energy sources is urgent. Green diesel from renewable resources, such as waste vegetable oil, is promising because it is compatible with petroleum diesel from fossil ...
Pascal Mwenge, Thubelihle Mahlangu, Andani Munonde   +2 more
doaj   +1 more source

Hydrogen recovery from ARDS unit by membranes: A simulation and economic study

Results in Engineering, 2022
Atmospheric residue desulfurization (ARDS) is widely used in the refinery to produce low-sulfur fuel oil (LSFO). The need for this fuel is increasing to meet the high demand in transportation and power generation.
Yousef Alqaheem, Abdulaziz Alomair
doaj   +1 more source

The Relationship Between Catalyst and Solvent in Hydrogenation via Condensed Phase Heterogeneous Catalysis

ChemSusChem, Volume 19, Issue 8, 28 April 2026.
Heterogeneous catalysis has historically been developed in the gas phase, however, we have found it pertinent to highlight solvent effects that must be accounted for in liquid environments. Condensed phase catalysis, like that in biomass, petroleum and the conversion of CO2, stands to benefit from the typically overlooked discussion regarding the ...
Jim B. Floyd, Robert A. Dagle, Jotheeswari Kothandaraman, David J. Heldebrant   +3 more
wiley   +1 more source

Conceptual design of a palm oil hydrotreatment reactor for commercial diesel production [PDF]

, 2014
A reactor with an industrial production of renewable diesel via palm oil hydrotreatment was conceptually designed based on laboratory-scale continuous and semi-batch reactor experiments.
Vélez Manco, Juan Felipe
core