JPS647931A - Method for removing mercury in exhaust gas - Google Patents

Method for removing mercury in exhaust gas

Info

Publication number
JPS647931A
JPS647931A JP62159795A JP15979587A JPS647931A JP S647931 A JPS647931 A JP S647931A JP 62159795 A JP62159795 A JP 62159795A JP 15979587 A JP15979587 A JP 15979587A JP S647931 A JPS647931 A JP S647931A
Authority
JP
Japan
Prior art keywords
mercury
cooling water
exhaust gas
cooling
tower
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP62159795A
Other languages
Japanese (ja)
Other versions
JPH0446168B2 (en
Inventor
Yoshinari Fujisawa
Yoji Ogaki
Tsuneharu Miyaji
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP62159795A priority Critical patent/JPS647931A/en
Publication of JPS647931A publication Critical patent/JPS647931A/en
Publication of JPH0446168B2 publication Critical patent/JPH0446168B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To prevent the transfer of mercury into air in a cooling tower by sending an exhaust gas into a washing device to wash, dehumidify, and cool the exhaust gas, discharging dehumidifying cooling water to the outside of the washing device, removing the mercury remaining in the cooling water, and then carrying out cooling. CONSTITUTION:A reducing agent is injected into the dehumidifying cooling water before entering a cooling tower 11, the exhaust gas leaving the washing tower 1 is introduced from a first pipeline 22, and the dehumidifying cooling water is aerated. Consequently, the mercury in the cooling water is transferred into the exhaust gas which is returned to the appropriate flue on this side of the washing tower 1 through a second exhaust gas pipeline 23. Incidentally, when the cooling water adjusted to 7pH by using hydrazine is aerated, about 95% of the mercury in the cooling water can be removed. In addition, the mercury in the cooling water is reduced at the time of aeration to lower the solubility of the mercury in water and to easily volatilize the mercury from water.
JP62159795A 1987-06-29 1987-06-29 Method for removing mercury in exhaust gas Granted JPS647931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62159795A JPS647931A (en) 1987-06-29 1987-06-29 Method for removing mercury in exhaust gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62159795A JPS647931A (en) 1987-06-29 1987-06-29 Method for removing mercury in exhaust gas

Publications (2)

Publication Number Publication Date
JPS647931A true JPS647931A (en) 1989-01-11
JPH0446168B2 JPH0446168B2 (en) 1992-07-29

Family

ID=15701431

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62159795A Granted JPS647931A (en) 1987-06-29 1987-06-29 Method for removing mercury in exhaust gas

Country Status (1)

Country Link
JP (1) JPS647931A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102650A (en) * 2000-09-27 2002-04-09 Miyoshi Oil & Fat Co Ltd Pretreatment method for flue gas
JP2016502462A (en) * 2012-11-20 2016-01-28 ティッセンクルップ インダストリアル ソリューションズ アクツィエンゲゼルシャフトＴｈｙｓｓｅｎＫｒｕｐｐ Ｉｎｄｕｓｔｒｉａｌ Ｓｏｌｕｔｉｏｎｓ ＡＧ Gas scrubbing equipment

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251918A (en) * 1984-05-26 1985-12-12 Seitetsu Kagaku Co Ltd Removal of mercury in gaseous phase
JPS6257631A (en) * 1985-09-04 1987-03-13 Hitachi Zosen Corp Method for reducing entrainment of mercury from circulating liquid cooling tower for dehumidifying waste gas

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60251918A (en) * 1984-05-26 1985-12-12 Seitetsu Kagaku Co Ltd Removal of mercury in gaseous phase
JPS6257631A (en) * 1985-09-04 1987-03-13 Hitachi Zosen Corp Method for reducing entrainment of mercury from circulating liquid cooling tower for dehumidifying waste gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002102650A (en) * 2000-09-27 2002-04-09 Miyoshi Oil & Fat Co Ltd Pretreatment method for flue gas
JP2016502462A (en) * 2012-11-20 2016-01-28 ティッセンクルップ インダストリアル ソリューションズ アクツィエンゲゼルシャフトＴｈｙｓｓｅｎＫｒｕｐｐ Ｉｎｄｕｓｔｒｉａｌ Ｓｏｌｕｔｉｏｎｓ ＡＧ Gas scrubbing equipment

Also Published As

Publication number Publication date
JPH0446168B2 (en) 1992-07-29

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