Results 71 to 80 of about 45,174 (277)
The role of the oxidic support on the deactivation of Pt catalysts during the CO2 reforming of methane [PDF]
, 1996 Pt supported on ¿-Al2O3, TiO2 and ZrO2 are active catalysts for the CO2 reforming of methane to synthesis gas. The stability of the catalysts increased in the order Pt/¿-A12O3 < Pt/TiO2 < Pt/ZrO2.
Bitter, J.H. +4 more
core +2 more sources
Urinary DNA lesions as a biomarker for assessing male reproductive health
AIMS Environmental Science, 2015 The study aimed to examine whether urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG) could serve as a biomarker for assessing sperm DNA integrity. Urine and semen samples were collected from 124 coke-oven workers, who had chronically been exposed to ...
Hueiwang Anna Jeng +2 more
doaj +1 more source
Enhancing Deoxygenation of a Biopetroleum Model Compound Using Mesoporous Beta Zeolite
ChemCatChem, Volume 18, Issue 1, 15 January 2026.Beta zeolite with 13 SAR is modified by alkaline and acidalkaline treatments to generate mesoporosity and improve accessibility of bulky molecules. Characterization confirms enhanced silicon removal and mesopore volume. In catalytic deoxygenation of a lignocellulosic‐derived model compound, treated BEA shows reduced oxygenates, higher hydrocarbon yield,
Cristiane S. Cardoso +5 more
wiley +1 more source
Pyrolysis-catalytic reforming/gasification of waste tires for production of carbon nanotubes and hydrogen [PDF]
, 2015 The production of high-value carbon nanotubes and hydrogen from the two-stage pyrolysis catalytic-steam reforming/gasification of waste tires have been investigated. The catalysts used were Co/Al₂ O₃ , Cu/Al₂ O₃ , Fe/Al₂ O₃ and Ni/Al₂ O₃ .
Nahil, Mohamad A. +3 more
core +3 more sources
Sperm quality and DNA integrity of coke oven workers exposed to polycyclic aromatic hydrocarbons
International Journal of Occupational Medicine and Environmental Health, 2016 Objectives: The objective of this study was to assess sperm quality and deoxyribonucleic acid (DNA) integrity of coke oven workers exposed to polycyclic aromatic hydrocarbons (PAHs) as compared to control subjects.
Hueiwang Anna Jeng +6 more
doaj
Study on the vibration characteristics of coke pushing ram in the coke pushing process
Advances in Mechanical Engineering, 2018 Serious vibrations can occur in the coke pushing ram in the coke pushing process and may directly affect the regular production of coke oven, in order to avoid vibration, it is necessary to study the vibration characteristics of coke pushing ram. In this
Jin Xiang +5 more
doaj +1 more source
Energies, 2018 It is important to convert alkane-rich gases, such as coke oven gas, to value-added chemicals rather than direct emission or combustion. Abundant nitrogen/oxygen substances are present in the actual alkane-rich gases. However, the research about how they
Wei Huang +5 more
doaj +1 more source
ChemCatChem, Volume 18, Issue 1, 15 January 2026.Operando UV‐vis spectroscopy is applied to unravel the role of metal‐modified zeolites containing Mg2+, Mn2+, Ca2+ or Zn2+ on the methanol‐to‐hydrocarbons (MTH) reaction. Zeolites ZSM‐5, SSZ‐13 and Beta were modified to assess the universality of the results.
Sophie H. van Vreeswijk +6 more
wiley +1 more source
Heat Isolators on a Vacuum Flask [PDF]
, 2010 The thing which makes the vacuum flask system useful is the vacuum between the two bottles. Producers of the vacuum flask try to create a perfect vacuum between the two bottles, but it is impossible. Little air goes inside, too.
Özgür, Utku
core
Hydrogen production by methanol steam reforming on NiSn/MgO-Al 2O3 catalysts: The role of MgO addition [PDF]
, 2011 The effect of the magnesia loading on the surface structure and catalytic properties of NiSn/MgO-Al2O3 catalysts for hydrogen production by methanol steam reforming has been investigated. The catalysts have been obtained by impregnation of γ-Al2O3 by the
Bobadilla Baladrón, Luis Francisco +7 more
core +1 more source