Essays about: "Bauxite"

Showing result 1 - 5 of 6 essays containing the word Bauxite.

  1. 1. 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

  2. 2. Let's talk aluminium : Evaluating the aluminium stewardship initiative's effectiveness and applicability as a mechanism in sustainability governance from a multi-stakeholder perspective

    University essay from Lunds universitet/LUCSUS

    Author : Jens Heidingsfelder; [2015]
    Keywords : key informant interview; Germany; Aluminium stewardship initiative; corporate social responsibility; resource certification; sustainability science; Earth and Environmental Sciences;

    Abstract : Mining bauxite and producing aluminium causes severe sustainability challenges. Although the usage of these non-renewable resource is inherently unsustainable, the global economy fosters an increased use of supposed “eco-friendly” aluminium. German industry is an important user of aluminium and a key player in the aluminium industry. READ MORE

  3. 3. Propensity of bed materials used in dual fluidized beds to retain ash-forming elements from biomass fuels

    University essay from SLU/Dept. of Energy and Technology

    Author : Björn Folkeson; [2014]
    Keywords : fluidized bed; ash retention; gasification; combustion; bed material;

    Abstract : The main aim of this work was to investigate the propensity of bed materials to retain ash-forming elements from biomass under conditions relevant to dual fluidized bed gasification (DFBG). The investigation was carried out in a laboratory-scale bubbling fluidized bed reactor in which biomass was gasified with steam and the unconverted char was combusted in the temperature range 800–900 ° C. READ MORE

  4. 4. Propensity of bed materials used in dual fluidized beds to retain ash-forming elements from biomass fuels

    University essay from

    Author : Björn Folkeson; [2014]
    Keywords : Fluidized bed; ash retention; gasification; combustion; bed material; Fluidiserad bädd; askämnen; förgasning; förbränning; bäddmaterial;

    Abstract : The main aim of this work was to investigate the propensity of bed materials to retain ash-forming elements from biomass under conditions relevant to dual fluidized bed gasification (DFBG). The investigation was carried out in a laboratory-scale bubbling fluidized bed reactor in which biomass was gasified with steam and the unconverted char was combusted in the temperature range 800–900 ° C. READ MORE

  5. 5. Joining Babylon - Opportunity or Curse - A study about the local Population's Perceptions of the Mining Industry in Jamaica

    University essay from Göteborgs universitet. Institutionen för kulturgeografi och ekonomisk geografi

    Author : René Brauer; [2013-04-17]
    Keywords : jamaica; local polulation; perception; mining; MultinationalCorporations MNC ; Corporate Social Responsibility;

    Abstract : This thesis tries to give an accurate description of the perceptions of the local people in a developing country about big Multinational Corporations (MNC) operating within their community, in one particular case. The big MNC will be represented by a bauxite mining company that also refines bauxite to alumina. READ MORE