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    • 1. 发明授权
    • Process for regenerating a liquid created in the kraft process for
pulping wood, while simultaneously obtaining high energy efficiency
    • 在用于制浆木浆的牛皮纸工艺中产生的液体再生的过程,同时获得高能量效率
    • US5855737A
    • 1999-01-05
    • US747960
    • 1996-11-12
    • Wolfgang SeidelManfred SchingnitzJurgen GorzPeter Gohler
    • Wolfgang SeidelManfred SchingnitzJurgen GorzPeter Gohler
    • D21C11/06D21C11/12D21C11/04
    • D21C11/066D21C11/125Y02P70/24
    • An apparatus and process for regenerating a liquid from a spent liquid containing sodium compounds created during kraft processing for pulping wood while simultaneously obtaining energy. Regeneration begins by gasifying said sodium compounds in a gasification reaction chamber at a temperature greater than the melting temperature of the sodium compounds and generating a gasification gas and salt melt. The gasification gas and salt melt are then directly cooled to a temperature greater than the dew point in the quenching chamber by spraying a cooling liquid which, in turn, causes gaseous condensate to form a bath in the quenching chamber which may also include water from kraft processing. The salt melt dissolves in the bath to produce an aqueous solution. This aqueous solution is then cooled and diluted with alkali liquid produced during the kraft process. Then the diluted aqueous solution is subjected to flashing and emerges as a regenerated liquid free of organic components to be used again in the wood pulping process. Simultaneously, the gasification gas from the quenching chamber is indirectly cooled thereby producing energy through at least one of steam and hot water and subsequently desulfurized.
    • 一种用于在硫酸盐化处理中产生的含有钠化合物的废液中再生液体的装置和方法,用于制浆,同时获得能量。 再生通过在气化反应室中以大于钠化合物​​的熔融温度的温度气化所述钠化合物并产生气化气体和盐熔体开始。 然后通过喷射冷却液将气化气体和盐熔体直接冷却到大于露点的温度,冷却液体又导致气态冷凝物在淬火室中形成浴,其也可以包括来自牛皮纸的水 处理。 盐熔融溶解在浴中以产生水溶液。 然后将该水溶液冷却并用硫酸盐法制备的碱液体稀释。 然后将稀释的水溶液闪蒸,并作为再生液体排出,不含有机组分,在木材制浆过程中再次使用。 同时,来自淬火室的气化气体被间接冷却,从而通过蒸汽和热水中的至少一种产生能量,随后脱硫。