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公开(公告)号:US4719088A
公开(公告)日:1988-01-12
申请号:US828124
申请日:1986-02-11
申请人: Fumio Itoh , Tutomu Sasaki , Ikuhisa Kanoh , Takaaki Fukumoto
发明人: Fumio Itoh , Tutomu Sasaki , Ikuhisa Kanoh , Takaaki Fukumoto
IPC分类号: B01D53/40 , B01D53/14 , B01D53/34 , B01D53/50 , B01D53/52 , B01D53/54 , B01D53/68 , B01D53/74 , B01D53/77 , G05D9/00 , B01D50/00
CPC分类号: B01D53/74 , B01D53/34 , B01D53/526 , B01D53/68
摘要: Apparatus for removing an acidic component from a gas comprising two absorption columns for washing a crude gas by using two concentrations of alkali-containing aqueous solutions. The alkali-containing solution used in the first step has a pH of 6-13 and the solution used in the second step has a 0.3-2.5 N concentration. A specific gravity control device is used to control the concentration of the solution circulated for the second step. A pH control device is used to control the pH of the solution circulated for the first step. The pH control device controls a valve which regulates the addition of the second step solution into the tank of the first step solution as needed.
摘要翻译: 用于通过使用两种浓度的含碱水溶液从气体中除去酸性组分的装置,包括用于洗涤粗气体的两个吸收塔。 第一工序中使用的含碱溶液的pH为6〜13,第二工序中使用的溶液的浓度为0.3〜2.5N。 使用比重控制装置来控制第二步循环的溶液的浓度。 pH控制装置用于控制第一步循环的溶液的pH值。 pH控制装置控制根据需要调节将第二步溶液添加到第一步骤溶液槽中的阀。