METHOD AND COMPOSITION FOR THE PREVENTION OF HIGH TEMPERATURE CORROSION DUE TO ALKALI SULFATES AND ALKALI CHLORIDES
    4.
    发明公开
    METHOD AND COMPOSITION FOR THE PREVENTION OF HIGH TEMPERATURE CORROSION DUE TO ALKALI SULFATES AND ALKALI CHLORIDES 审中-公开
    方法和组合物防止高温引起的腐蚀的碱金属硫酸盐和氯化物

    公开(公告)号:EP1255879A4

    公开(公告)日:2009-06-24

    申请号:EP01906900

    申请日:2001-02-01

    申请人: UNIV CALIFORNIA

    发明人: SCHOFIELD KEITH

    摘要: An additive to a flame reaction is provided which forms noncorrosive deposits on cooler metal surfaces which are more stable than Na2SO4 or K2SO4. The additive preferentially combines with the sodium or potassium, and sulfates of these will not be formed. By adding tungsten to the flame, a complex sodium tungstate is produced on the surface of the cooler metal object in a dense form and corrosion is inhibited. Deposition appears to closely reflect the relative thermodynamic stabilities of these salts and follows the order Na2WO4>Na2SO4>NaCl>Na2CO3. The flame sulfur or chlorine do not remain on the surface in association with the alkali metal. Tungsten can be added in any form desired to the combustion system. The flame processes all chemical tungsten precursors as equivalent sources of tungsten. Suitable salts that are readily available are ammonium metatungstate, paratungstate, or tungstate, tungsten hexacarbonyl, tungsten oxides, tungstic acid or any organo-tungsten compound. The level of tungsten preferably present at an atomic concentration is equal to 1.5 to 2 times that of the sodium in the specific flame environment and possibly a little higher for potassium. The nature of the fuel and possible alkali reduction schemes will control the quantity and mixing method of the additive. The additive may be directly mixed into the fuel or injected into the burned gas regions of the combustor. Ta and Nb also appear as possible substitutes for W in the invention.

    FUEL COMPOSITIONS
    8.
    发明公开
    FUEL COMPOSITIONS 审中-公开
    燃料组合物

    公开(公告)号:EP1567619A1

    公开(公告)日:2005-08-31

    申请号:EP03767327.4

    申请日:2003-12-04

    申请人: Binions, Greg

    发明人: Binions, Greg

    IPC分类号: C10L1/02 C10L10/02

    摘要: The invention relates to a liquid fuel composition comprising: 10-80 vol % of a first component comprising at least two aliphatic organic non-hydrocarbon compounds; 20­-65 vol % of a second component comprising at least one hydrocarbon and having an aromatic content of less than 15 vol % of the total of the second component; 1-35 vol % of a third component, which comprises an oxygenate; and 0.01 to 20 vol % water, wherein at least one compound in the fuel composition is miscible with both water and hydrocarbons to provide a single phase composition. Such fuels have been found to reduce undesirable emissions in the exhaust gases and enable the use of recycled compounds and water in the fuel.