TW333468B - The method and apparatus for wet de-sulfurization and de-nitride - Google Patents

The method and apparatus for wet de-sulfurization and de-nitride

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Publication number
TW333468B
TW333468B TW084105267A TW84105267A TW333468B TW 333468 B TW333468 B TW 333468B TW 084105267 A TW084105267 A TW 084105267A TW 84105267 A TW84105267 A TW 84105267A TW 333468 B TW333468 B TW 333468B
Authority
TW
Taiwan
Prior art keywords
tower
absorbent
contained
alkalinity
oxidation
Prior art date
Application number
TW084105267A
Other languages
Chinese (zh)
Inventor
Herng-Wenn Shyu
Ruey-Ian Chen
sen-rong Wu
Tzeng-Wenn Uen
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW084105267A priority Critical patent/TW333468B/en
Application granted granted Critical
Publication of TW333468B publication Critical patent/TW333468B/en

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Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Treating Waste Gases (AREA)

Abstract

A method for wet de-sulfurization and de-nitrate, it includes: (1) Pass waste gas contained SO2 and Nox through 1st tower contained alkalinity absorbent, by contacting both, and using absorbent to absorb SO2 and to react into waste liquid contained sulfite and sulfite-hydrogen. In which, the 1st tower is a de-sulfurization tower, and the alkalinity absorbent is selected from NaOH solution, KOH solution, MgOH solution and one of CaCO3 or NaCO3. (2) Pass the remaining waste gas that has removed SO2 already through 2nd tower contained oxidation absorbent, by contacting both, then oxidation the NO contained inside waste gas into NO2 that is absorbed by oxidation absorbent to remove. In which, the 2nd tower is an oxidation de-nitrate tower, and the oxidation absorbent is NaClO2. (3) Pass waste liquid contained sulfite and sulfite-hydrogen through 3rd tower contained alkalinity absorbent, and contact with remaining waste gas in above (2) step and alkalinity absorbent to remove NO2 un-removed by (2) and small amount Cl2. In which, the 3rd tower is de-nitrate tower, and the alkalinity absorbent is selected from NaOH solution, KOH solution, MgOH solution and one of CaCO3 or Na2CO3.
TW084105267A 1995-05-25 1995-05-25 The method and apparatus for wet de-sulfurization and de-nitride TW333468B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW084105267A TW333468B (en) 1995-05-25 1995-05-25 The method and apparatus for wet de-sulfurization and de-nitride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW084105267A TW333468B (en) 1995-05-25 1995-05-25 The method and apparatus for wet de-sulfurization and de-nitride

Publications (1)

Publication Number Publication Date
TW333468B true TW333468B (en) 1998-06-11

Family

ID=58262855

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084105267A TW333468B (en) 1995-05-25 1995-05-25 The method and apparatus for wet de-sulfurization and de-nitride

Country Status (1)

Country Link
TW (1) TW333468B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10252215B2 (en) 2016-10-14 2019-04-09 Industrial Technology Research Institute Composition and apparatus for purifying nitrogen-oxide-containing gases
CN114053854A (en) * 2021-11-12 2022-02-18 湖南立泰环境工程有限公司 VOCs desulfurization and concentration regulation jar
CN114432865A (en) * 2022-01-13 2022-05-06 米凯利科技（北京）有限公司 LTOR low-temperature desulfurization, denitrification and deamination composition and application thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10252215B2 (en) 2016-10-14 2019-04-09 Industrial Technology Research Institute Composition and apparatus for purifying nitrogen-oxide-containing gases
CN114053854A (en) * 2021-11-12 2022-02-18 湖南立泰环境工程有限公司 VOCs desulfurization and concentration regulation jar
CN114432865A (en) * 2022-01-13 2022-05-06 米凯利科技（北京）有限公司 LTOR low-temperature desulfurization, denitrification and deamination composition and application thereof

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