Results 91 to 100 of about 31,743 (208)

Alkylation of Benzene with Ethanol over ZSM-5 Based La–P Catalysts

open access: yesBulletin of Chemical Reaction Engineering & Catalysis
Benzene ethylation in the presence of HZSM-5 zeolites is a promising method for producing ethylbenzene. This study examined the effects of modifying lanthanum and phosphorus as additives to the HZSM-5 catalyst, tested in the temperature range of 300-500 °
Sabit Eyyub Mamedov   +5 more
doaj   +1 more source

Measurements of nonmethane hydrocarbons in 28 United States cities [PDF]

open access: yes, 2008
Between 1999 and 2005 a sampling campaign was conducted to identify and quantify the major species of atmospheric nonmethane hydrocarbons (NMHCs) in United States cities.
Baker, AK   +7 more
core  

MXene‐Enhanced Electromembrane Systems for Advanced Water Applications: A Review

open access: yesAdvanced Energy and Sustainability Research, Volume 7, Issue 1, January 2026.
MXenes, synthesized via etching, intercalation, and delamination, exhibit hydrophilicity, conductivity, tunability, and strength, enabling roles as membranes, electrodes, and hybrids in electrical‐driven membrane technologies. These systems leverage adsorption, catalysis, separation, and self‐cleaning but face challenges in stability, scalability ...
Zainab Alansari   +2 more
wiley   +1 more source

Synergistic effect between CO2 and H2O2 on ethylbenzene oxidation catalyzed by carbon supported heteropolyanion catalysts

open access: yesGreen Processing and Synthesis, 2019
A series of Keggin heteropolytungstate salts (M1.5PW12O40, M=Cu, Co, Zn and Fe) were prepared and characterized utilizing inductively coupled plasma spectrometry (ICP), Fourier transform infrared (FTIR) spectra, and ultraviolet-visible (UV-Vis) light ...
Al Kahtani Abdullah   +2 more
doaj   +1 more source

Developmental toxic effects of ethylbenzene or toluene alone and in combination with butyl acetate in rats after inhalation exposure [PDF]

open access: yes, 2007
First, the developmental toxic potential of n-butyl acetate (BA) was examined in Sprague-Dawley rats following whole body inhalation exposure, 6 h day-1, from day 6 to 20 of gestation, at concentrations of 0, 500, 1000, 2000 and 3000 ppm.
Bourges-Abella, Nathalie   +4 more
core  

Mechanistic Insights Into One‐Pot Unsaturated Hydrocarbon Hydrogenation/Isomerization: DFT and DTW‐Guided Design of Homomeric High‐Density FLPs and Metal‐Oxygen Electronic Regulation in Multimetal‐Doped MOFs

open access: yesCarbon Neutralization, Volume 5, Issue 1, January 2026.
In this work, we constructed homomeric high‐density FLPs. By establishing a descriptor model and a novel strategy for dynamic time alignment analysis, we accelerated transition state search by 220‐fold, pioneering a “dynamic dimension” for catalytic performance.
Lingjing Yu   +4 more
wiley   +1 more source

Highly Solvent Tolerance in Serratia marcescens IBBPo15

open access: yesBrazilian Archives of Biology and Technology
The aim of this study was to investigate the solvent tolerance mechanisms in Serratia marcescens strain IBBPo15 (KT315653). Serratia marcescens IBBPo15 exhibited remarkable solvent-tolerance, being able to survive in the presence of high concentrations ...
Mihaela Marilena Stancu
doaj   +1 more source

Fuel‐Tanker Explosions: Characterization and Emission Factors for the Quantification of the Associated Air Emissions From Burnt Premium Motor Spirit and Liquefied Petroleum Gas in Nigeria

open access: yesEnergy Science &Engineering, Volume 14, Issue 1, Page 91-98, January 2026.
ABSTRACT This study investigated the combustion characterization of Petroleum Motor Spirit (PMS) and Liquefied Petroleum Gas (LPG) due to fuel tanker explosions in Nigeria using Aspen Plus software. The simulation characterized and determined the emission factors (EFs) of the associated emissions from explosions.
Francis B. Elehinafe   +5 more
wiley   +1 more source

Natural Source Zone Depletion of Crude Oil in the Subsurface: Processes Controlling Mass Losses of Individual Compounds

open access: yesWater Resources Research, Volume 62, Issue 1, January 2026.
Abstract At many petroleum hydrocarbon spill sites, residual spilled product forms a long‐term source of groundwater contamination. The phrase source zone natural depletion is used to refer to the mass loss rates. Overall mass lost under environmental conditions was analyzed using conservative biomarker concentrations for a 1979 oil spill in northern ...
Barbara A. Bekins, William N. Herkelrath
wiley   +1 more source

BTEX detection with composites of ethylenevinyl acetate and nanostructured carbon

open access: yesBeilstein Journal of Nanotechnology, 2017
By using a solvent-based method composites of ethylenevinyl acetate copolymer and carbon black (EVA–CB) were synthesized for sensing BTEX (benzene, toluene, ethylbenzene and xylene) vapours. The composites were characterized using atomic force microscopy
Santa Stepina   +3 more
doaj   +1 more source

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