Search for dissertations about: "iron catalyst"

Showing result 1 - 5 of 71 swedish dissertations containing the words iron catalyst.

  1. 1. Metallic iron : potential to function as tar breakdown catalyst in waste gasification

    Author : Thomas Nordgreen; Krister Sjöström; Truls Liljedahl; KTH; []
    Keywords : ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical process and manufacturing engineering; Kemisk process- och produktionsteknik;

    Abstract : .... READ MORE

  2. 2. Immobilizing catalysts on textiles : case of zerovalent iron and glucose oxidase enzyme

    Author : Mohammad Neaz Morshed; Vincent Nierstrasz; Frank Hollmann; Högskolan i Borås; []
    Keywords : Biocatalysts; Catalyst immobilization; Catalytic reduction; Chitosan; Dye removal; Environmental remediation; Enzyme immobilization; Glucose oxidase; Hyperbranched dendrimers; Heterogeneous catalysis; Heterogeneous bio-Fenton; Heterogeneous Fenton; Inorganic catalysts; Phenol removal; Polyester nonwoven fabric; Pathogenic bacteria removal; Plasma ecotechnology; Polyethylenimine; Textile catalyst; Textile biotechnology; Textile surface modification; Wastewater treatment; Zerovalent iron; 生物催化剂; 涤纶无纺布; 金属颗粒:铁固定化; 超支化树状大分子; 聚酰胺胺树状大分子 3-氨基丙基); 三乙氧基硅烷; 1-硫代甘油; 聚乙烯胺; 壳聚糖; 葡萄糖氧化酶; 氧化还原酶; 酶固定化,物理吸附; 纤维催化剂; 多相催化; 抗菌纺织品; 革兰氏阳性(G ve)菌 革兰氏阴性(G-ve)菌; 类芬顿; 生物芬顿; 染料去除; 苯酚去除; 生物催化; 产业纺织品; 纺织生物技术; 纺织品表面改性; 环境治理; 废水处理; 零价铁。; Biocatalyseurs; Immobilisation de catalyseurs; Reduction de catalyseurs; Chitosane; Élimination de colorants; Assainissement de l’environnement; Immobilisation d’enzymes; Glucose oxydase; Dendrimères hyper-ramifiés; Catalyse hétérogène; Bio-Fenton hétérogène; Fenton hétérogène; Catalyseurs inorganiques; Élimination de phénols; Non-tissé Polyester; Élimination de bactéries pathogènes; Écotechnologie plasma; Polyéthylèneimine; Catalyseur textile; Biotechnologie textile; Modification de surface textile; Traitement des eaux usées; Fer zéro-valent; Biokatalysatorer; Katalysatorimmobilisering; Katalytisk reduktion; Kitosan; Avlägsnande av färgämnen; Miljösanering; Enzymimmobilisering; Glukosoxidas; Hypergrenade dendrimerer; Heterogen katalys; Heterogen bio-Fenton; Heterogen Fenton; Oorganiska katalysatorer; Fenolavlägsnande; Polyester fiberduk; Avlägsnande av patogena bakterier; Plasmaekoteknik; Polyetylenimin; Textil katalysator; Textil bioteknik; Modifiering av textilytor; Avloppsrening; Zerovalent järn; Textil och mode generell ; Textiles and Fashion General ;

    Abstract : Catalytic systems are one of the most effective technologies of modern chemical processes. The system uses a molecule called ‘catalyst’ that is capable of catalyzing a reaction without being produced or consumed during the process. READ MORE

  3. 3. Metal-exchanged zeolites for NH3-SCR applications - Activity and Deactivation studies

    Author : Soran Shwan; Chalmers University of Technology; []
    Keywords : modeling; NOX.; Hydrothermal; Chemical; Kinetic; Copper; Deactivation; Iron; Zeolite; Nitrogen oxides; NH3; Ammonia; Catalyst; NSR; Emissions; Poisoning; Ageing; NH3-SCR;

    Abstract : Emissions of nitrogen oxides (NOX) formed during the burning process in internal combustion engines is a major contributor to global air pollutions. One effective way to reduce NOX in lean environments, i.e. oxygen excess is selective catalytic reduction with ammonia (NH3-SCR). READ MORE

  4. 4. Near field immobilization of selenium oxyanions

    Author : Anders Puranen; Mats Jonsson; Christophe Jegou; KTH; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Se-79; Selenium; Immobilization; Redox; Iron; Corrosion; Palladium; Catalyst; Spent Nuclear Fuel; Repository; Nuclear chemistry; Kärnkemi;

    Abstract : The topic of this doctoral thesis is the potential near field immobilization of the radionuclide 79Se after intrusion of groundwater into a spent nuclear fuel canister in a repository. 79Se is a non naturally occurring long lived selenium isotope formed as a result of fission in nuclear fuel. READ MORE

  5. 5. Iron catalyzed C-C coupling reactions - mechanistic investigations

    Author : Anna Hedström; Göteborgs universitet; Göteborgs universitet; Gothenburg University; []
    Keywords : iron; homogenous catalysis; cross coupling; C-C bond formation; reaction mechanisms; kinetic investigations; competitive Hammett study; density functional theory;

    Abstract : The mechanism of the iron catalyzed cross coupling of aryl electrophiles with alkyl Grignard reagents was studied. The reaction proceeds via a rate-limiting oxidative addition of the aryl halide to an Fe(I) complex generated in situ. A transmetalation from an aryl Grignard reagent occurs either before or after the oxidative addition. READ MORE