Sökning: "Iron industry"

Visar resultat 16 - 20 av 177 avhandlingar innehållade orden Iron industry.

1. 16. Towards Abatement of Selected Emissions from Metals Manufacturing

   Författare :Diana Orrling; Seshadri Seetharaman; S. Subramanian; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; mercury; zinc; iron; copper; sulfur dioxide; adsorption; pollution; spectroscopy; thermal desorption; polycrystalline; surfaces; Materials science; Teknisk materialvetenskap;

   Sammanfattning : Although the metallurgical industry has made great strides in the reduction of unwanted emissions to the atmosphere as a result of production processes, significant challenges still exist. From a global perspective, even large reductions in emissions per produced ton become immaterial when considering that the total world production of metals continues to increase. LÄS MER

3. 17. On microstructure formation and mechanical properties in grey cast iron

   Författare :Attila Diószegi; Preben N. Hansén; Linköpings universitet; []
   Nyckelord :grey iron; nucleation; primary austenite; eutectic cell; growth rate; inoculation; thermal analysis; TECHNOLOGY; TEKNIKVETENSKAP;

   Sammanfattning : A major user of cast components is the automotive industry, where the functionality of the components is related to environmental demands. Internal combustion engines are constantly being improved to emit less pollution. A vital part in this development is to increase the material properties of engine components during their life cycle. LÄS MER

4. 18. Tracking Emissions Reductions and Energy Efficiency in the Steel Industry

   Författare :Johannes Morfeldt; Semida Silveira; Wolfgang Eichhammer; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; energy efficiency; greenhouse gas emissions reductions; indicators; iron and steel industry; systems analysis; energieffektivitet; växthusgasutsläppsminskning; indikatorer; järn- och stålbranschen; systemanalys; Energy Technology; Energiteknik;

   Sammanfattning : The iron and steel industry has become increasingly globalised. Market conditions are also changing and de-carbonisation of production is challenging.The objective of this thesis is to assess how energy efficiency and greenhouse gas emissions reductions can be promoted and effectively monitored in the steel industry. LÄS MER

5. 19. MECHANISTIC INVESTIGATIONS OF TRANSITION METAL CATALYZED REACTIONS

   Författare :Jonatan Kleimark; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; alkene insertion; allylic alkylation; catalysis; cross coupling; density funtional theory; free energy surface; iron; kinetic investigation; Mizoroki-Heck reaction; nickel; palladium; reaction mechanism; sulfinylation; transition metal;

   Sammanfattning : Transition metal catalyzed reactions have had a large impact on the human progress for the last century. Several extremely important areas, such as the agricultural industry and the plastic industry, have benefited from this development. LÄS MER

7. 20. Transition Metal-Mediated Selective Functionalizations of Bio-Derived Building Blocks

   Författare :Petter Dunås; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; phenols; Heck reaction; microbial arene oxidation; green chemistry; domino reactions; chirality transfer; palladium; metal carbonyl; azulenes; renewable resources; iron;

   Sammanfattning : In order to transition to a more sustainable chemical industry, it is necessary to replace the fossil starting materials that are largely used today with renewable ones. Starting materials available from abundant natural sources, or which can be efficiently produced via a biotransformation, are of high interest in this regard. LÄS MER