发明授权
US5855737A Process for regenerating a liquid created in the kraft process for
pulping wood, while simultaneously obtaining high energy efficiency
失效
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
- 专利标题: Process for regenerating a liquid created in the kraft process for pulping wood, while simultaneously obtaining high energy efficiency
- 专利标题(中): 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
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申请号: US747960申请日: 1996-11-12
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公开(公告)号: US5855737A公开(公告)日: 1999-01-05
- 发明人: Wolfgang Seidel , Manfred Schingnitz , Jurgen Gorz , Peter Gohler
- 申请人: Wolfgang Seidel , Manfred Schingnitz , Jurgen Gorz , Peter Gohler
- 申请人地址: DEX Freiberg
- 专利权人: Noell-KRC Energie und Umwelttechnik Niederlassung Freiberg
- 当前专利权人: Noell-KRC Energie und Umwelttechnik Niederlassung Freiberg
- 当前专利权人地址: DEX Freiberg
- 主分类号: D21C11/06
- IPC分类号: D21C11/06 ; D21C11/12 ; D21C11/04
摘要:
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.
公开/授权文献
- US5163278A Lawn bagger 公开/授权日:1992-11-17