Sökning: "coke ash"

Hittade 5 uppsatser innehållade orden coke ash.

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

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

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

   Sammanfattning : 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. LÄS MER

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

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

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

   Sammanfattning : 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. LÄS MER

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

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

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

   Sammanfattning : 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. LÄS MER

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

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Institutionen för samhällsbyggnad och naturresurser

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

   Sammanfattning : 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. LÄS MER

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

   Uppsats för yrkesexamina på avancerad nivå, Luleå tekniska universitet/Industriell miljö- och processteknik

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

   Sammanfattning : 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. LÄS MER