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- Keyword
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- Glass-fiber catalysts (3)
- Unsteady-state catalysis and sorption-enhanced catalytic processes (3)
- Fiber-glass catalyst (2)
- SO2 oxidation (2)
- Adsoprtion-catalytic process (1)
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- Ash particulate (1)
- CO oxidation (1)
- Claus process (1)
- Coal-fired power plants (1)
- Conditioning (1)
- Environmental protection (1)
- Flue gas (1)
- H2S oxidation and Claus process (1)
- Hydrogen sulfide (1)
- Oxidation (1)
- Selective oxidation (1)
- Smelter waste gases (1)
- Sulfur (1)
- Tail gas cleanup (1)
- VOC incineration (1)
Articles 1 - 7 of 7
Full-Text Articles in Engineering
Modelling Of The Adsorption‐Catalytic Processes In The Multi‐Dispersed Bed, Sergey V. Zazhigalov, Natali A. Chumakova, Andrey N. Zagoruiko
Modelling Of The Adsorption‐Catalytic Processes In The Multi‐Dispersed Bed, Sergey V. Zazhigalov, Natali A. Chumakova, Andrey N. Zagoruiko
Andrey N Zagoruiko
The simulation work is dedicated to the multidispersed adsorption-catalytic packing, consisting of comparatively large pellets (say, 5-10 mm) of the catalyst-adsorbent and of catalytically active micro-fibers with typical thickness of ~10 microns. During the heating at the regeneration stage the micro-fiber catalyst must be heated much more rapidly than adsorbent-catalyst, due to the much higher unit outer surface area improving the heat exchange. When the adsorbent-catalyst temperature is becoming high enough for partial desorption of chemisorbed VOC, the temperature of the micro-fibrous catalyst will be already as high as necessary one for complete oxidation of desorbed VOCs. This theoretical concept …
Process Of Combined Oxidation Of Co And So2 In Waste Gases Of Non‐Ferrous Smelters At Platinum Glass‐Fiber Catalyst, Sergey V. Vanag, Andrey N. Zagoruiko
Process Of Combined Oxidation Of Co And So2 In Waste Gases Of Non‐Ferrous Smelters At Platinum Glass‐Fiber Catalyst, Sergey V. Vanag, Andrey N. Zagoruiko
Andrey N Zagoruiko
The work is dedicated to the development of the efficient catalyst for the oxidation of CO in presence of significant amounts of SO2. It was experimentally shown that the Pt/Zr-Si glas-fiber-based catalyst is capable to provide complete CO conversion in SO2 presence at temperatures less 300 С, at the same time showing high resistance to deactivation. Application of such catalyst in the reverse-process will allow to raise essentially efficiency of purification of waste metallurgical gases from SO2 under presence of significant amounts (up to 1-2% vol.) of CO.
Novel Catalytic Process For Flue Gas Conditioning In Electrostatic Precipitators Of Coal-Fired Power Plants, Andrey N. Zagoruiko, Bair S. Balzhinimaev, Sergey V. Vanag, Sergey A. Lopatin, Alexander M. Zykov, Sergey N. Anichkov, Nick D. Hutson
Novel Catalytic Process For Flue Gas Conditioning In Electrostatic Precipitators Of Coal-Fired Power Plants, Andrey N. Zagoruiko, Bair S. Balzhinimaev, Sergey V. Vanag, Sergey A. Lopatin, Alexander M. Zykov, Sergey N. Anichkov, Nick D. Hutson
Andrey N Zagoruiko
The presentation is devoted to the development of the new catalytic process for oxidation of SO2 to SO3 on the base of the novel Pt-containing catalyst with Zr-Si fiber-glass support. It was demonstrated that such catalyst reveals excellent low-temperature activity and unique long-term operation stability. The process may be applied for production of SO3 for conditioning of flue gases from coal-fired powerplants.
New Generation Of Catalytic Technologies For Environmental Protection On The Base Of Fiber-Glass Catalysts, Bair S. Balzhinimaev, Andrey N. Zagoruiko
New Generation Of Catalytic Technologies For Environmental Protection On The Base Of Fiber-Glass Catalysts, Bair S. Balzhinimaev, Andrey N. Zagoruiko
Andrey N Zagoruiko
Novel glass-fiber based catalysts containing extra-low amounts of noble metals (0.01-0.02% mass of Pt or Pd) demonstrate unique performance in many catalytic reactions, resulted from the ability of the glass fibers to stabilize the transient metals in the glass bulk in a highly-dispersed form. Moreover, specific heat/mass transfer properties, original geometry, high flexibility and high mechanical strength of such catalysts give the way to develop really new catalytic processes and novel reactor designs. The paper is dedicated to the successful research and development (from fundamental research issues to pilot and semi-industrial tests) of different catalytic oxidation processes based on application …
Sorption-Enhanced Steam Reforming Of Hydrocarbons With Autothermal Sorbent Regeneration In A Moving Heat Wave Of Catalytic Combustion Reaction, Andrey N. Zagoruiko, Alexey G. Okunev
Sorption-Enhanced Steam Reforming Of Hydrocarbons With Autothermal Sorbent Regeneration In A Moving Heat Wave Of Catalytic Combustion Reaction, Andrey N. Zagoruiko, Alexey G. Okunev
Andrey N Zagoruiko
Novel technological concept of sorption-enhanced hydrocarbon steam reforming with autothermal regeneration of the carbon dioxide scavenger in the moving super-adiabatic heat wave of the exothermic catalytic combustion reaction performed directly inside the adsorption-catalytic bed is presented. Process modelling results, confirming the capability and high efficiency of the proposed technological approach, are discussed. It is shown that proposed approach opens the way for creation of cheap, reliable and energy-saving adiabatic packed bed methane processors of unlimited processing capacity.
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, …
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.