Sökning: "catalytic cracking"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden catalytic cracking.

  1. 1. Influence of hydrogen and carbides on high temperature cracking in cast Inconel

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad mekanik

    Författare :Gunnar Dufwa; [2022]
    Nyckelord :Hydrogen embrittlement; carbide; finite element method; dislocation dynamics;

    Sammanfattning : Hydrogen embrittlement is a well-known source of cracking in metallic mechanical elements. This work studies the influence of hydrogen and carbides on the crack formation in a castnickel-alloy-component in a selective catalytic reduction system. LÄS MER

  3. 2. Development of a System to Quantify Coking in Rocket Nozzle Cooling Channels

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Adam Parks; [2022]
    Nyckelord :methane; pyrolysis; reusable; carbon deposition; ozone cleaning; rocket engines; cooling channels; borescope; metan; pyrolys; återanvändbar; koldeposition; ozon-rening; raketmotorer; kylkanaler; boreskop;

    Sammanfattning : Liquid methane is becoming an increasingly attractive rocket propellant due to its high performance characteristics and potential to support in-situ resource utilisation. Methane, however, when heated, can thermally decompose in a process known as pyrolysis. LÄS MER

  4. 3. Low-carbon hydrogen production from waste plastics via pyrolysis and in-line catalytic cracking process

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Yanghao Jin; [2022]
    Nyckelord :Pyrolysis; catalytic cracking; plastics recycling; biochar catalyst; hydrogen production; Pyrolys; katalytisk krackning; återvinning av plast; biokol; produktion av väte;

    Sammanfattning : This study develops a novel pyrolysis process combined with in-line catalytic reforming toproduce high purity hydrogen and carbon products from waste plastics. The input resource is waste plastic material in the form of discarded Covid masks. LÄS MER

  5. 4. Fast Pyrolysis of Biomass in a Fluidized Bed for Production of Bio-oil and Upgradation by Ex-situ Catalytic Bed

    Master-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Samina Gulshan; [2019]
    Nyckelord :;

    Sammanfattning : Production of bio-oil from biomass is now becoming best substitute of fossil fuels in the transportation sector. Pyrolysis is one of the most promising route to produce bio-oil from biomass.  However, bio-oil needs to be upgraded due to presence of high percentage of oxygenated compounds. LÄS MER

  7. 5. Catalytic Upgrading of Fast Pyrolysis Bio-oil Using Zeolites

    Master-uppsats, KTH/Kraft- och värmeteknologi

    Författare :Elena Wikberg; [2019]
    Nyckelord :;

    Sammanfattning : Fast pyrolysis bio-oil is considered as a possible source for production of liquid bio-fuels and bio-chemicals enabling the necessary transition to a renewable energy system. In this Master’s thesis work the upgrading of fast pyrolysis bio-oils with Fluid Catalytic Cracking (FCC) conversion process at industrially relevant conditions is studied using Fluid Catalytic Cracking Micro Activity Test (FCC MAT) unit at RISE ETC in Piteå, Sweden. LÄS MER