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Showing result 1 - 5 of 6 essays matching the above criteria.

1. 1. Numerical modelling of calcination of limestone : An evaluation of existing calcination model

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Marcus Svensson; [2021]
   Keywords : Simulation; Modelling; Numerical; Shrinking core model; Calcination; Limestone;

   Abstract : Calcination is important for modern society as we know it since products from the reaction is used inseveral industries. Calcination is a chemical reaction where a solid particle, e.g., limestone, is exposedto high temperature which causes volatile impurities to be released from the particle. READ MORE

3. 2. Separate Calcination in Cement Clinker Production : A laboratory scale study on how an electrified separate calcination step affects the phase composition of cement clinker

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Amanda Vikström; [2021]
   Keywords : Cement; Cement clinker; Calcination; Separate calcination; Electrification; CO2 atmosphere; Product quality; Product characterization; XRD; HT-XRD; Rietveld refinement;

   Abstract : Cement production is responsible for around 7% of the global anthropogenic carbon dioxide emissions. More than half of these emissions are due to the unavoidable release of carbon dioxide upon thermal decomposition of the main raw material limestone. READ MORE

4. 3. Impact of calcination temperature and time on quicklime slaking reactivity

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Erik Björnwall; [2021]
   Keywords : Lime slaking reactivity; limestone calcination; Calcium carbonate; SEM;

   Abstract : In this master thesis work calcination parameters' impact on the resulting quicklimes slaking reactivity is investigated. This is done by calcination of three different sedimentary limestones in an N2 atmosphere according to a design of experiment matrix. The limestones are from Wolica Poland, Slite Sweden and Jutjärn Sweden. READ MORE

5. 4. Influence of fuel mix on mass balance of Cl, S, and K in a long rotary kiln

   University essay from Umeå universitet/Institutionen för tillämpad fysik och elektronik

   Author : Simon Nilsson; [2019]
   Keywords : ;

   Abstract : Lime is a material with a wide range of applications including land improvement, water treatment as well as the paper-, steel-, and cement industry. Annual worldwide production was estimated at 350 Mt/year for 2016 and 2017 and the production is responsible for a large contribution of the greenhouse gas CO2 to the atmosphere, contributing to global warming. READ MORE

6. 5. Life Cycle Assessment of Portland Cement and Concrete Bridge : Concrete Bridge vs. Wooden Bridge

   University essay from KTH/Industriell ekologi

   Author : Marjan Mousavi; [2013]
   Keywords : Life cycle assessment LCA ; cradle to gate; cradle to grave; functional unit; carbonation;

   Abstract : Today global warming mitigation, natural resource conservation and energy saving are some of the significant concerns of different industries, such as cement and concrete industries. For that reason, a streamlined life cycle assessment (LCA) model of one ton of a Portland cement, CEM I produced in Cementa AB’s Degerhamn plant, has been developed by using the LCA software KCL-ECO. READ MORE