Search for dissertations about: "chloride oxidation"

Showing result 6 - 10 of 52 swedish dissertations containing the words chloride oxidation.

  2. 6. Critical potential and oxygen evolution of the chlorate anode

    Author : Linda Nylén; Göran Lindbergh; Yohannes Kiros; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chlorate; chloride oxidation; oxygen evolution; critical anode potential; chromate; DSA; mass transport; RDE; Chemical engineering; Kemiteknik;

    Abstract : In the chlorate process, natural convection arises thanks to the hydrogen evolving cathode. This increases the mass transport of the different species in the chlorate electrolyte. There is a strong connection between mass transport and the kinetics of the electrode reactions. READ MORE

  4. 7. Influence of the electrolyte on the electrode reactions in the chlorate process

    Author : Linda Nylén; Göran Lindbergh; Ann Cornell; Mårten Behm; Geoeff H Kelsall; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chlorate; chloride oxidation; critical anode potential; chromate; DSA; hydrogen evolution; iron; mass transport; oxygen evolution; REM; RDE; steel; Electrochemistry; Elektrokemi;

    Abstract : The chlorate process is very energy intensive and a major part of the production costs are for electrical energy. Since the electricity prices are constantly increasing and may also vary periodically, the chlorate plants may be forced to adjust their production rate to the price at each moment in order to minimise their costs. READ MORE

  5. 8. Alkali Induced Corrosion of 304L, The Influence of Potassium Salts and Water Vapour

    Author : Jesper Pettersson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; 304L; Alkali; Breakaway Corrosion; KCl; Oxidation; Deposit;

    Abstract : This work investigates the influence of alkali salts on the oxidation of304-type (Fe18Cr10Ni) austenitic stainless steel in laboratory and fieldexposures. Stainless steel coupons were exposed isothermally inlaboratory furnaces at 400-600 °C in 5% O2 and 5% O2 + 40% H2O.Thermobalance exposures were also performed. READ MORE

  6. 9. Corrosion of High-Temperature Alloys in Molten Salts

    Author : Esraa Hamdy Mohamedin; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Thermal energy storage; Pre-oxidation; Carburisation; Molten salts; Phase transition; High-temperature corrosion; Alumina-forming alloys; Alkali transition metalates; Alkali aluminate; Chromia-forming alloys; Alumina; Concentrated solar power;

    Abstract : Concentrated solar power (CSP) is an interesting technology that involves storing solar energy in the form of heat and subsequently converting it into electricity. The third-generation (Gen3) CSP plants aim to operate at temperatures >700°C, necessitating the deployment of new heat storage materials that can withstand such high operating temperatures. READ MORE

  7. 10. Chemical Interactions between Potassium, Nitrogen, Sulfur and Carbon Monoxide in Suspension-Fired Systems

    Author : Thomas Allgurén; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; sulfation; combustion; CO-oxidation; modelling; oxy-fuel; NO-formation; experiments; alkali;

    Abstract : Drastic cuts in global CO2 emissions are needed to mitigate global warming and limit the average temperature increase to well below 2ºC. The power generation sector is largely based on fossil fuels and generates a significant share of the global CO2 emissions. READ MORE