Search for dissertations about: "Riitta Keiski"

Found 2 swedish dissertations containing the words Riitta Keiski.

  1. 1. Formic and Levulinic Acid from Cellulose via Heterogeneous Catalysis

    Author : Johan Ahlkvist; Jyri-Pekka Mikkola; Riitta Keiski; Umeå universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Levulinic acid; formic acid; Amberlyst 70;

    Abstract : The chemical industry of today is under increased pressure to develop novel green materials, bio-fuels as well as sustainable chemicals for the chemical industry. Indeed, the endeavour is to move towards more eco-friendly cost efficient production processes and technologies and chemical transformation of renewables has a central role considering the future sustainable supply of chemicals and energy needed for societies. READ MORE

  2. 2. Development of nitrogen-containing materials for capture and catalytic conversion of carbon dioxide to value-added chemicals

    Author : Thai Q. Bui; Jyri-Pekka Mikkola; Knut Irgum; William Siljebo; Riitta Keiski; Umeå universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CCUS; PEHA; DBU; mesoporous melamine-formaldehyde; DMC; cyclic carbonate; flow reactor; Physical Chemistry; fysikalisk kemi; sustainable development; hållbar utveckling;

    Abstract : Anthropogenic carbon dioxide (CO2) emissions have become a critical environmental issue because a large amount of CO2 releasing into the atmosphere, particularly from the massive use of fossil fuels, is the major factor promoting the global warming and climate change. To mitigate the CO2 emissions, Carbon Capture, Utilization and Storage (CCUS) can be one of important solutions. READ MORE