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- Research articles (2)
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- Biphenyl (1)
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- Dibenzoylation (1)
- Environmental Engineering (1)
- Forest Fires (1)
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- H2S oxidation and Claus process (1)
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- Leaching ; Slags ; Steel Production (1)
- Material characterization (1)
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- Portugal (1)
- Selective oxidation (1)
- Shielding gas mixtures (1)
- Sulfur (1)
- Sulphated AlMCM-41 (1)
- Tail gas cleanup (1)
- Uncertainity ; Gaseous Emissions ; NOx (1)
- Unsteady-state catalysis and sorption-enhanced catalytic processes (1)
Articles 1 - 10 of 10
Full-Text Articles in Engineering
Anaerobic Catalytic Oxidation Of Hydrocarbons In Moving Heat Waves. Case Simulation: Propane Oxidative Dehydrogenation In A Packed Adiabatic V-Ti Oxide Catalyst Bed, Andrey N. Zagoruiko
Anaerobic Catalytic Oxidation Of Hydrocarbons In Moving Heat Waves. Case Simulation: Propane Oxidative Dehydrogenation In A Packed Adiabatic V-Ti Oxide Catalyst Bed, Andrey N. Zagoruiko
Andrey N Zagoruiko
The model simulation study has shown that the anaerobic process of oxidative dehydrogenation of propane under periodic alteration of feeding between propane and air may be realized in adiabatic catalyst beds in stable continuous cyclic mode in two-reactor scheme. In case of appropriate choice of process parameters (cycle duration, feeding flow rates) the process appears to be autothermal, i.e. it does not require any inlet gas preheating for stable operation. Compared to similar steady-state adiabatic process, the proposed process is characterized with much lower maximum catalyst temperatures, giving the way to process pure propane without diluting it with inert gases, …
Oxidative Carbonylation And Conjugated Processes With Carbon Monoxide Participation Catalyzed By Palladium Complexes (In Russian), Lev G. Bruk, Irina V. Oshanina, Sergey N. Gorodsky, Oleg N. Temkin
Oxidative Carbonylation And Conjugated Processes With Carbon Monoxide Participation Catalyzed By Palladium Complexes (In Russian), Lev G. Bruk, Irina V. Oshanina, Sergey N. Gorodsky, Oleg N. Temkin
Sergey N. Gorodsky
No abstract provided.
Selective Catalytic Oxidation Of Hydrogen Sulfide For Cleanup Of Claus Tail Gases: Startup Of Industrial Installation At Omsk Refinery, Andrey N. Zagoruiko, Vladimir V. Mokrinskii, Nataly A. Chumakova, Galina A. Bukhtiarova, Sergey V. Vanag, Tatiana V. Borisova, Galina G. Isaeva, Boris G. Kozorog
Selective Catalytic Oxidation Of Hydrogen Sulfide For Cleanup Of Claus Tail Gases: Startup Of Industrial Installation At Omsk Refinery, Andrey N. Zagoruiko, Vladimir V. Mokrinskii, Nataly A. Chumakova, Galina A. Bukhtiarova, Sergey V. Vanag, Tatiana V. Borisova, Galina G. Isaeva, Boris G. Kozorog
Andrey N Zagoruiko
The presentation describes the experience of development and commercialization of the catalyst and the process for selective oxidation of H2S into sulfur, which was put into industrial operation at Omsk Refinery (Omsk, Russia) in 2004.
New Oscillating Reaction – Phenylacetylene Oxidative Carbonylation To Anhydride Of Phenylmaleic Acid (In Russian), Sergey N. Gorodsky, Olga V. Kasatkina, Lev G. Bruk, Oleg N. Temkin
New Oscillating Reaction – Phenylacetylene Oxidative Carbonylation To Anhydride Of Phenylmaleic Acid (In Russian), Sergey N. Gorodsky, Olga V. Kasatkina, Lev G. Bruk, Oleg N. Temkin
Sergey N. Gorodsky
No abstract provided.
Textural And Fractal Properties Of Cuo/Al2o3 Catalyst Supports, Zeljko D. Cupic
Textural And Fractal Properties Of Cuo/Al2o3 Catalyst Supports, Zeljko D. Cupic
Zeljko D Cupic
No abstract provided.
Forest Fires In Portugal: How They Happen And Why They Happen, João F. Gomes
Forest Fires In Portugal: How They Happen And Why They Happen, João F. Gomes
João F Gomes
Forest fires are recurrent phenomena in Southern European countries, due to the nature of Mediterranean forest and climatic characteristics. However, in Portugal, in the last years, forest fires attained the dimension of public calamity and are now endangering sustainability of forest itself, as well as several derived economic activities. This paper reviews the past and current situation of forest fires in Portugal, analyses its main causes and consequences and derives recommendations to effectively overcome this problem.
Leaching Of Heavy Metals From Steelmaking Slags, João F. Gomes
Leaching Of Heavy Metals From Steelmaking Slags, João F. Gomes
João F Gomes
Leaching tests with EAF and Ladle slags were performed, using a flow through test and the standard batch test DIN 38414-S4. The previous method was used to simulate the leaching behaviour of steel slags under landfill. The chemical analysis of the leachates during this period shows, in general, for both types of slag, an increase of heavy metal releases with ageing. Standard test method DIN 38414-S4 was used to evaluate leachability of heavy metals by water in unprocessed slags. After more than one year of trials, slag samples submitted to these trials presented very low total leaching levels. The most …
Estimation Of Uncertainty In The Determination Of Nitrogen Oxides Emissions, João F. Gomes
Estimation Of Uncertainty In The Determination Of Nitrogen Oxides Emissions, João F. Gomes
João F Gomes
This paper presents a methodology for estimation of uncertainty on a reference test method for determination of nitrogen oxides concentration in gaseous emissions from stationary sources. As a first stage for identification of uncertainty sources, the test method is carefully reviewed in detail. Afterwards, these sources are quantified, bearing in mind its partial uncertainty, allowing the determination of the combined uncertainty and, finally, the expanded uncertainty. The calculation procedure was implemented into an excel calculation file. Using this file and considering several numerical applications from real situations, uncertainities around 15 mg/Nm3 over determined concentrations of 350 mg/Nm3 of NOx (expressed …
Fume Emissions During Metal Arc Welding, João F. Gomes
Fume Emissions During Metal Arc Welding, João F. Gomes
João F Gomes
No abstract provided.
Sulphated Almcm-41: Mesoporous Solid Brønsted Acid Catalyst For Dibenzoylation Of Biphenyl, Eng-Poh Ng, Hadi Nur, Mohd Nazlan Mohd Muhid, Halimaton Hamdan
Sulphated Almcm-41: Mesoporous Solid Brønsted Acid Catalyst For Dibenzoylation Of Biphenyl, Eng-Poh Ng, Hadi Nur, Mohd Nazlan Mohd Muhid, Halimaton Hamdan
Eng-Poh Ng
Sulphated mesoporous solid Brønsted acid catalyst (SO4-AlMCM-41) was prepared by impregnation of sulphuric acid on the surface of H-AlMCM-41. Characterization of SO4-AlMCM-41 by pyridine adsorption studies and 27Al MAS NMR showed that the presence of Brønsted acidity was correlated with octahedrally coordinated aluminium and solvent environment. Catalytic study demonstrated that the SO4-AlMCM-41 catalyst has a higher activity in the dibenzoylation of biphenyl with benzoyl chloride than sulphuric acid, H-AlMCM-41 and sulphated amorphous silica.