Essays about: "coke ash"

Found 5 essays containing the words coke ash.

1. 1. Influence of bio-coal ash respectively coal structure on coke production and coke quality

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Frida Bäck; [2019]
   Keywords : Bio-coke; bio-coal; leaching; coke quality; carbon structures; torrefied sawdust;

   Abstract : In recent years, the consequences of global warming have increased the discussion about the climate impact caused by humans and the fossil emissions. Sweden has decided to reduce the negative climate impact with a zero vision for the fossil carbon dioxide emissions in year 2045. READ MORE

3. 2. Liquefaction of Softwood Bark towards Biochemicals and Biofuels

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Emma Nordström; [2018]
   Keywords : Softwood; Bark; Liquefaction; Hytrotropic acid; Lignin; Biofuel; Bio-oil; Spruce; Catalyst; Zeolite;

   Abstract : The energy consumption in the world is increasing at the same time as the fossil fuel resources are limited. This is causing a rising interest in renewable energy sources over the world. To reduce dependency on fossil fuel sources biomass is an excellent alternative. READ MORE

4. 3. Alkali Circulation in the Blast Furnace - Process Correlations and Counter Measures

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Joel Carlsson; [2018]
   Keywords : Alkali; coke; experimental blast furnace; top gas; mass spectrometry; multivariate analysis;

   Abstract : In blast furnace ironmaking one major challenge is to control and measure the alkalis circulating and accumulating in the blast furnace (BF). Alkali enter the BF with the primary raw material and will form a cycle where it is first reduced to metal at the lower parts forming gas. READ MORE

5. 4. Characterisation of Used Lead-Acid Batteries for Feed Optimisation in Secondary Lead Production

   University essay from Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

   Author : Linda Neiström; [2018]
   Keywords : Lead-acid battery; Boliden Bergsöe; Secondary lead production; Characterisation; Lead; Plastic separation;

   Abstract : Used lead-acid batteries are the main raw material in secondary lead production. Technologicalprogress in the car industry, have raised concerns regarding the lead-acid battery’s leading positionas electrochemical storage system in the future. READ MORE

6. 5. Alkali Control in the Blast Furnace – Influence of Modified Ash Composition and Charging Practice

   University essay from Luleå tekniska universitet/Industriell miljö- och processteknik

   Author : Jenny Olofsson; [2017]
   Keywords : Experimental blast furnace; coke; coke ash; reactivity; characterization; catalyst; coke degradation;

   Abstract : The enrichment of alkali in the blast furnace has been proven to be a catalyst of coke gasification and is thus a key parameter in the degradation of coke. Alkali also directly destroys the carbon structure, increases the risk of scaffold formation, increases the load and attacks the refractory. READ MORE