Sökning: "hydroprocessing"

Hittade 3 avhandlingar innehållade ordet hydroprocessing.

  1. 1. Hydrodemetallization of Petroleum - Reaction Kinetics, Activity Decay and Long-life Catalysts

    Författare :Fei-Xiang Long; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; catalyst deactivation; large pore catalyst; hydroprocessing; hydrodemetallization; fibrillar alumina support; hydrotreating; kinetics; metal porphyrin; multiresponse parameter estimation; HDM;

    Sammanfattning : Hydrodemetallization (HDM) is an indispensable step in industrial catalytic hydroprocessing of residual oils. To develop improved HDM catalysts and reactors, a detailed knowledge of the reaction mechanisms and kinetics, and a good understanding of the mechanisms and process of the catalyst decaying are very important. LÄS MER

  3. 2. Kinetic studies of vanadyl etioporphyrin hydrodemetallization

    Författare :Feixiang Long; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; kinetics; hydroprocessing; metal porphyrin; hydrometallization; hydrotreeating; vanadyl porphyrin; porphyrin; CoMo catalyst; etioporphyrin;

    Sammanfattning : .... LÄS MER

  4. 3. Energy savings for petroleum processing : Using mathematical models, optimal control and diagnostics

    Författare :Esin Iplik; Konstantinos Kyprianidis; Ioanna Aslanidou; Mehmet Mercangöz; Mälardalens universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy- and Environmental Engineering; energi- och miljöteknik;

    Sammanfattning : Petroleum products are widely used as an energy supply, and the total production capacity of petroleum refineries is quite high. In this thesis, an energy intensive refinery process, hydroprocessing, is selected and evaluated in terms of its energy loss contributors. Digital solutions are discussed and demonstrated to reduce losses. LÄS MER