Sökning: "coke degradation"

Hittade 2 uppsatser innehållade orden coke degradation.

1. 1. 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

3. 2. Hydrogen Assisted Lignin Depolymerization with Pulp Mill Catalysts

   Master-uppsats, Lunds universitet/Kemiteknik (CI)

   Författare :Linnéa Kollberg; [2017]
   Nyckelord :Lignin; depolymerization; pulp mill catalysts; hydrogenolysis; base catalyzed depolymerization; Chemistry;

   Sammanfattning : As part of the development of a process for production of a lignin-rich oil that can serve as a renewable feedstock to existing petroleum refineries, hydrogen assisted depolymerization of lignin in filtered black liquor has been investigated. This process offers the possibility to reduce fossil emissions from transportation by utilization of the largest renewable carbon resource in Sweden, namely the forest. LÄS MER