公开(公告)号：US5840263A

公开(公告)日：1998-11-24

申请号：US848838

申请日：1997-05-05

申请人： Takeo Shinoda ,  Tamotsu Higuchi ,  Shinichiro Kotake ,  Kiyoshi Okazoe ,  Tatsuto Nagayasu ,  Koichiro Iwashita ,  Kenichiro Kawamichi ,  Susumu Okino ,  Toru Takashina

发明人： Takeo Shinoda ,  Tamotsu Higuchi ,  Shinichiro Kotake ,  Kiyoshi Okazoe ,  Tatsuto Nagayasu ,  Koichiro Iwashita ,  Kenichiro Kawamichi ,  Susumu Okino ,  Toru Takashina

IPC分类号： B01D53/50 ,  B01D53/34

CPC分类号： B01D53/504

摘要： A flue gas treating system for removing sulfur dioxide and dust present in flue gas by gas-liquid contact with an absorbing fluid and has an inlet side absorption tower of the liquid column type and an outlet side absorption tower of the liquid column type, each of which has a uniform cross-section over the area of gas-liquid contact, and the cross-section of flue gas in the inlet side absorption tower is smaller than the cross section of flue gas in the outlet side absorption tower. The inlet side absorption tower is constructed in the form of a parallel-flow absorption tower wherein the flue gas flows downward for favorable collection of dust and absorption of sulfur dioxide. The outlet side absorption tower is constructed in the form of a counter-flow adsorption tower wherein the flue gas flows upward for favorable absorption of sulfur dioxide. The absorbing fluid within a tank is injected upward from a plurality of spray pipes.

摘要翻译： 一种烟气处理系统，用于通过与吸收液体的气液接触来除去烟道气中存在的二氧化硫和粉尘，并具有液柱型的入口侧吸收塔和液柱型的出口侧吸收塔， 在气液接触区域上具有均匀的横截面，入口侧吸收塔中烟道的横截面小于出口侧吸收塔中烟道气的横截面。 入口侧吸收塔以平行流式吸收塔的形式构成，其中烟道气向下流动，有利于收集灰尘和吸收二氧化硫。 出口侧吸收塔以逆流吸附塔的形式构成，其中烟道气向上流动以吸收二氧化硫。 罐内的吸收液体从多个喷射管向上注入。