Search for dissertations about: "PETROCHEMICAL PROCESS"

Showing result 1 - 5 of 14 swedish dissertations containing the words PETROCHEMICAL PROCESS.

  1. 1. Catalytic Steam Pyrolysis of Biomass for Production of Liquid Feedstock

    Author : Efthymios Kantarelis; Weihong Yang; Tobias Richards; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Pyrolysis; Catalytic Cracking; Catalytic Upgrading; Biomass to Liquids; Bio-fuels; Πυρόλυση; Καταλυτική διάσπαση; Καταλυτική αναβάθμιση; Biomass to Liquids; Βιοκαύσιμα; Pyrolys; Katalytisk Krackning; Katalytisk uppgradering; Biomass to Liquids; biobränslen; Chemical Engineering; Kemiteknik; Energiteknik; Energy Technology; Materials Science and Engineering; Teknisk materialvetenskap;

    Abstract : The current societal needs for fuels and chemical commodities strongly depend on fossil resources. This dependence can lead to economic instabilities, political problems and insecurity of supplies. READ MORE

  2. 2. Zeolite Membrane Separation at Low Temperature

    Author : Pengcheng Ye; Luleå tekniska universitet; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Abstract : The energy consumption of separation processes accounts for a large part of the total energy consumption in chemical industry. Membrane separation processes require much less energy than the currently used thermally driven separation processes and could therefore reduce energy consumption in industry considerably. READ MORE

  3. 3. Enzymatic synthesis of acrylates. Catalyst properties and development of process and product

    Author : Mathias Nordblad; Bioteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; enzyme kinetics; process development; enzyme stability; enzyme immobilisation; acrylation; lipase;

    Abstract : The increasingly apparent environmental problems in our surroundings necessitate a quest for sustainable development in all areas of human endeavour. Within the field of chemistry and the production of chemicals, the focus is increasingly on the development of green chemistry. READ MORE

  4. 4. Conversion of biomass and waste using highly preheated agents for materials and energy recovery

    Author : Pawel Donaj; Wlodzimierz Blasiak; Tobias Richards; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; biomass; waste; pyrolysis; gasification; ASR; Metallurgical process engineering; Metallurgisk processteknik; SRA - Energy; SRA - Energi;

    Abstract : One of the greatest challenges of human today is to provide the continuous and sustainable energy supply to the worldwide society. This shall be done while minimizing all the negative consequences of the operation(s) to the environment and its living habitants including human beings, taking from the whole life cycle perspective. READ MORE

  5. 5. A mechanistic description of the evolution of aromatic tar during catalytic upgrading of the raw gas produced from biomass steam gasification

    Author : Huong Nguyen; Chalmers University of Technology; []
    Keywords : biomass gasification; raw gas; catalytic raw gas upgrading; ilmenite; kinetic model; tar;

    Abstract : The removal of tar from the raw gas produced during biomass gasification is a prerequisite for the viability of the process downstream of the gasifier. The tar, the composition of which is dominated by aromatics, readily condenses, leading to process disruption. READ MORE