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1. WO2020003845 - EXHAUST GAS MERCURY REMOVAL SYSTEM

Publication Number WO/2020/003845
Publication Date 02.01.2020
International Application No. PCT/JP2019/020840
International Filing Date 27.05.2019
IPC
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation 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 or aerosols
34
Chemical or biological purification of waste gases
46
Removing components of defined structure
64
Heavy metals or compounds thereof, e.g. mercury
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation 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 or aerosols
34
Chemical or biological purification of waste gases
74
General processes for purification of waste gases; Apparatus or devices specially adapted therefor
81
Solid phase processes
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
J
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS, COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
20
Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
02
comprising inorganic material
20
comprising free carbon; comprising carbon obtained by carbonising processes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
23
COMBUSTION APPARATUS; COMBUSTION PROCESSES
J
REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
15
Arrangements of devices for treating smoke or fumes
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27
FURNACES; KILNS; OVENS; RETORTS
D
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
17
Arrangement for using waste heat; Arrangement for using, or disposing of, waste gases
B01D 53/64 (2006.01)
B01D 53/81 (2006.01)
B01J 20/20 (2006.01)
F23J 15/00 (2006.01)
F27D 17/00 (2006.01)
CPC
B01D 53/30
B01D 53/64
B01D 53/81
B01J 20/20
F23J 15/00
F27D 17/00
Applicants
  • 三菱重工環境・化学エンジニアリング株式会社 MITSUBISHI HEAVY INDUSTRIES ENVIRONMENTAL & CHEMICAL ENGINEERING CO., LTD. [JP/JP]; 神奈川県横浜市西区みなとみらい4丁目4番2号 4-2, Minatomirai 4-chome, Nishi-ku, Yokohama-shi, Kanagawa 2200012, JP
Inventors
  • 佐久間 哲哉 SAKUMA Tetsuya; JP
  • 尾田 誠人 ODA Masato; JP
Agents
  • 松沼 泰史 MATSUNUMA Yasushi; JP
  • 伊藤 英輔 ITO Eisuke; JP
  • 橋本 宏之 HASHIMOTO Hiroyuki; JP
  • 古都 智 FURUICHI Satoshi; JP
  • 鎌田 康一郎 KAMATA Koichiro; JP
  • 長谷川 太一 HASEGAWA Taichi; JP
Priority Data
2018-12445229.06.2018JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) EXHAUST GAS MERCURY REMOVAL SYSTEM
(FR) SYSTÈME D'ÉLIMINATION DE MERCURE DU GAZ D'ÉCHAPPEMENT
(JA) 排ガス水銀除去システム
Abstract
(EN)
This exhaust gas mercury removal system (1) comprises: a mercury concentration meter (11) for measuring the concentration of mercury contained in exhaust gas discharged from a dust-collecting device (7) that removes dust from a mercury-containing exhaust gas E, and outputting an output value corresponding to the measurement results; an active carbon-supplying device (12) for supplying active carbon to exhaust gas upstream of the dust-collecting device (7); and a control device (13) for controlling the active carbon-supplying device (12) on the basis of the output value such that when the output value is less than a first threshold value, the active carbon-supplying device (12) supplies a specified amount of active carbon intermittently, whereas when the output value equals or exceeds the first threshold value, the active carbon-supplying device (12) continuously supplies active carbon in a supply amount corresponding to the rate of change in the output value.
(FR)
Ce système d'élimination de mercure de gaz d'échappement (1) comprend : un compteur de concentration de mercure (11) pour mesurer la concentration de mercure contenue dans un gaz d'échappement déchargé à partir d'un dispositif de collecte de poussière (7) qui élimine la poussière d'un gaz d'échappement contenant du mercure E, et délivre en sortie une valeur de sortie correspondant aux résultats de mesure; un dispositif d'alimentation en charbon actif (12) pour fournir du charbon actif à un gaz d'échappement en amont du dispositif de collecte de poussière (7); et un dispositif de commande (13) pour commander le dispositif d'alimentation en charbon actif (12) sur la base de la valeur de sortie de telle sorte que lorsque la valeur de sortie est inférieure à une première valeur de seuil, le dispositif d'alimentation en charbon actif (12) fournit une quantité spécifiée de charbon actif par intermittence, tandis que lorsque la valeur de sortie est égale ou supérieure à la première valeur de seuil, le dispositif d'alimentation en charbon actif (12) fournit en continu du charbon actif dans une quantité d'alimentation correspondant au taux de variation de la valeur de sortie.
(JA)
排ガス水銀除去システム(1)は、水銀を含む排ガスEを除塵処理する集塵装置(7)から排出される排ガスに含まれる水銀の濃度を測定し、測定の結果に対応する出力値を出力する水銀濃度計(11)と、活性炭を集塵装置(7)の上流の排ガスへ供給する活性炭供給装置(12)と、出力値に基づいて活性炭供給装置(12)を制御する制御装置(13)とを有する。制御装置(13)は、出力値が第一の閾値未満の場合、所定量の活性炭を間欠的に供給するよう活性炭供給装置(12)を制御し、出力値が第一の閾値以上の場合、出力値の変化の速度に対応した供給量の活性炭を連続的に供給するよう活性炭供給装置(12)を制御する。
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