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1. US20190083924 - AMOUNT OF SEAWATER CONTROL DEVICE FOR SCRUBBER, AMOUNT OF SEAWATER CONTROL METHOD FOR SCRUBBER, AND AMOUNT OF ALKALI CONTROL DEVICE AND AMOUNT OF ALKALI CONTROL METHOD

官庁
アメリカ合衆国
出願番号 16193052
出願日 16.11.2018
公開番号 20190083924
公開日 21.03.2019
公報種別 A1
IPC
B01D 53/18
B処理操作;運輸
01物理的または化学的方法または装置一般
D分離
53ガスまたは蒸気の分離;ガスからの揮発性溶剤蒸気の回収;廃ガスの化学的または生物学的浄化,例.エンジン排気ガス,煙,煙霧,煙道ガスまたはエアロゾル
14吸収によるもの
18吸収ユニット;そのための液分配器
G05D 9/12
G物理学
05制御;調整
D非電気的変量の制御または調整系
9レベル制御,例.容器内に貯蔵される材料の量の制御
12電気的手段の使用によって特徴づけられたもの
B01D 53/50
B処理操作;運輸
01物理的または化学的方法または装置一般
D分離
53ガスまたは蒸気の分離;ガスからの揮発性溶剤蒸気の回収;廃ガスの化学的または生物学的浄化,例.エンジン排気ガス,煙,煙霧,煙道ガスまたはエアロゾル
34廃ガスの化学的または生物学的浄化
46構造が特定される成分の除去
48硫黄化合物
50硫黄酸化物
G05D 7/06
G物理学
05制御;調整
D非電気的変量の制御または調整系
7流量の制御
06電気的手段の使用によって特徴づけられたもの
B01D 53/14
B処理操作;運輸
01物理的または化学的方法または装置一般
D分離
53ガスまたは蒸気の分離;ガスからの揮発性溶剤蒸気の回収;廃ガスの化学的または生物学的浄化,例.エンジン排気ガス,煙,煙霧,煙道ガスまたはエアロゾル
14吸収によるもの
CPC
B01D 2251/304
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
30Alkali metal compounds
304of sodium
B01D 2252/1035
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2252Absorbents, i.e. solvents and liquid materials for gas absorption
10Inorganic absorbents
103Water
1035Sea water
B01D 2258/0283
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2258Sources of waste gases
02Other waste gases
0283Flue gases
B01D 53/1412
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
1412Controlling the absorption process
B01D 53/185
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
14by absorption
18Absorbing units; Liquid distributors therefor
185Liquid distributors
B01D 53/501
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
46Removing components of defined structure
48Sulfur compounds
50Sulfur oxides
501by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
出願人 FUJI ELECTRIC CO., LTD.
発明者 Tadashi KOMATSU
Kuniyuki TAKAHASHI
優先権情報 2013-014316 29.01.2013 JP
2013-014317 29.01.2013 JP
発明の名称
(EN) AMOUNT OF SEAWATER CONTROL DEVICE FOR SCRUBBER, AMOUNT OF SEAWATER CONTROL METHOD FOR SCRUBBER, AND AMOUNT OF ALKALI CONTROL DEVICE AND AMOUNT OF ALKALI CONTROL METHOD
要約
(EN)

A method for controlling an amount of seawater supplied to a scrubber that purifies sulfur oxide contained in exhaust gas by bringing the sulfur oxide into contact with seawater, includes calculating a minimum amount of seawater necessary for an absorption reaction of the sulfur oxide by the seawater, from an engine output, a sulfur content of fuel oil, and a predetermined alkalinity of the seawater, calculating a corrected amount of seawater as an amount of seawater at which the sulfur oxide in the exhaust gas discharged into atmosphere from the scrubber is equal to or less than a set variable based on a measured value of the sulfur oxide in the exhaust gas, calculating a set amount of seawater by summing the minimum amount of seawater and the corrected amount of seawater and implementing control such that seawater corresponding to the set amount is supplied to the scrubber.