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    • 7. 发明授权
    • Method for purifying a gas stream
    • 纯化气流的方法
    • US06548031B1
    • 2003-04-15
    • US09700291
    • 2000-12-21
    • Claudemiro FerreiraUrs Georg NaefCamille Borer
    • Claudemiro FerreiraUrs Georg NaefCamille Borer
    • B01D5334
    • B01D53/8696B01D53/30B01D53/8668B01J19/0053B01J19/14B01J2208/00256B01J2208/00274C08G63/80Y10S423/05
    • The invention relates to a method for purifying a gas stream containing impurities composed of organic compounds, said gas stream flowing out of a reactor (1) designed for solid phase condensation, preferably for aromatic polyesters and polyamides. According to said method, a gas containing at least oxygen is fed to the gas stream containing the impurities. The combined gas stream is then conveyed, at a high temperature, especially from 280° C. to 380° C., onto a catalyst (8) containing rhodium or a rhodium alloy on an inert porous support. It was found advantageous that the amount of oxygen used be hypo stoichiometric, in relation to the organic impurities, and/or that the ratio of oxygen to impurities be controlled by means of a lambda probe (A). Such a lambda probe (A) is used in a facility according to the invention.
    • 本发明涉及一种纯化含有由有机化合物组成的杂质的气流的方法,所述气流从设计用于固相冷凝的反应器(1)中流出,优选用于芳族聚酯和聚酰胺。 根据所述方法,至少含有氧的气体被供给到含杂质的气流中。 然后将合并的气流在高温下,特别是280℃至380℃,在含有铑或铑合金的催化剂(8)上惰性多孔载体上输送。 发现使用的氧的量相对于有机杂质为低的化学计量比,和/或通过λ探针(A)控制氧与杂质的比例是有利的。 这种λ探针(A)用于根据本发明的设备中。