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    • 3. 发明申请
    • METHOD OF PURIFYING GAS STREAMS
    • 净化气流的方法
    • US20140042367A1
    • 2014-02-13
    • US13962618
    • 2013-08-08
    • Neste Oil Oyj
    • Juhani AittamaaKari KeskinenJukka Keyriläinen
    • C01B3/52
    • C01B3/52B01D53/52B01D2251/50C01B2203/0485C10G3/50C10G70/006Y02P30/20
    • A method of purifying a gas stream formed from a process wherein a glyceride containing raw material is converted to hydrocarbon paraffins. The gas stream contains hydrogen or carbon dioxide as a major component and at least one sulphurous component selected from sulphide compounds as an impurity. The gas is contacted with an acidic aqueous wash solution of transition metal ions capable of binding to sulphide ions. A significant portion of the sulphide compounds contained in the gas are bound into practically insoluble transition metal sulphide compounds to remove sulphide compounds from the gas to produce a purified gas. The obtained purified gas is recovered. The method efficiently lowers sulphide concentrations to ppm or sub-ppm level and it can be implemented on an industrial scale with low investment costs. The metal can be recovered.
    • 一种纯化由其中含有甘油酯的原料转化为烃链烷烃的方法形成的气流的方法。 气流含有作为主要成分的氢或二氧化碳和选自硫化物作为杂质的至少一种亚硫酸成分。 气体与能够结合硫化物离子的过渡金属离子的酸性水溶液接触。 包含在气体中的大部分硫化物化合物被结合到几乎不溶的过渡金属硫化物化合物中以从气体中除去硫化物以产生净化气体。 回收得到的净化气体。 该方法有效地将硫化物浓度降低到ppm或亚ppm水平,并且可以以低投资成本在工业规模上实施。 金属可以回收。