WO1988008748A1 - Process for producing impregnated activated charcoal for eliminating mercury from gases - Google Patents

Process for producing impregnated activated charcoal for eliminating mercury from gases Download PDF

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Publication number
WO1988008748A1
WO1988008748A1 PCT/EP1988/000387 EP8800387W WO8808748A1 WO 1988008748 A1 WO1988008748 A1 WO 1988008748A1 EP 8800387 W EP8800387 W EP 8800387W WO 8808748 A1 WO8808748 A1 WO 8808748A1
Authority
WO
WIPO (PCT)
Prior art keywords
impregnated
activated carbon
iodine
sulfur
mercury
Prior art date
Application number
PCT/EP1988/000387
Other languages
German (de)
English (en)
French (fr)
Inventor
Karl Knoblauch
Josef Degel
Klaus-Dirk Henning
Klaus Wybrands
Heinz Ruppert
Original Assignee
Bergwerksverband Gmbh
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 Bergwerksverband Gmbh filed Critical Bergwerksverband Gmbh
Publication of WO1988008748A1 publication Critical patent/WO1988008748A1/de

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes

Definitions

  • the invention relates to a method for producing impregnated activated carbon for the removal of mercury from gases.
  • Mercury is a highly toxic metal that is contained in numerous gases due to its relatively high vapor pressure (20 mg / m at 20 ° C). It is known to remove mercury from impregnated activated carbon from gases.
  • an activated carbon is used which is impregnated with 5-50% H 2 SO 4 and 0.1-5% iodine ions. Due to the simultaneous impregnation with sulfuric acid and additionally with iodine or iodide, relatively small amounts of iodine or iodide are sufficient to achieve the desired cleaning effect. Due to the sulfuric acid content, the activated carbon causes corrosion problems.
  • the invention has for its object to separate mercury from gases with a high separation efficiency on impregnated activated carbons without corrosion. This object is achieved in that the activated carbon is impregnated with elemental sulfur and then with iodine or an iodine compound.
  • the micropore volume of the activated carbon to be impregnated is between 5 and 65 cm 3/100 g.
  • the activated carbon is preferably impregnated with 5-25% by weight sulfur and with 0.5-5% by weight iodine.
  • Elemental iodine or alkali iodides such as potassium and sodium iodide can be used as iodine-containing compounds.
  • activated carbons can advantageously with a micropore volume (pore radius ⁇ 10 nm) is from 5 - 65 cm 3/100 g is used.
  • the micropore volume is determined from the benzene adsorption isotherm (Kienle / Bäder - "Activated carbon and its industrial application” -êt Enke Verlag, Stuttgart, 1980, p.66 ff.).
  • the micropore volume is determined from the amount of benzene adsorbed.
  • a sulfur content of 5 to 25% by weight and an iodine content of 0.5 to 5% by weight have proven to be particularly advantageous.
  • the activated carbons according to the invention are produced in two steps.
  • the activated carbon according to DE-PS 32 29 396 is mixed with elementary sulfur and heated to 250 ° C. for 30 hours.
  • the activated carbon treated in this way is impregnated with an aqueous solution of potassium iodide in the second step and then dried at 120.degree.
  • Different sulfur or iodine contents can be applied to the activated carbon by different amounts of sulfur or iodine concentrations.
  • activated carbons were produced which were only impregnated with potassium iodide (experiment 1) and activated carbons which were only impregnated with elemental sulfur (experiments 2, 3, 4 and 9).
  • the micro pore volumes of the activated carbons were 5, 36, 48 and 65 cm3 / 100 g.
  • Test 8 was carried out at 150 ° C. Here, too, the separation performance after 1000 hours was over 99.9%.
  • An activated carbon having a micropore volume of 36 cm 3/100 g was respectively / impregnated with elementary sulfur, sulfuric acid and with sulfuric acid / potassium iodide and potassium iodide according to the invention with elementary sulfur. Experiments were carried out with these activated carbons under the same conditions as in Example 2. The result is shown in the figure. The mercury elimination rate is plotted in percent over the test time in hours.
  • the figure shows that even after a short test period, the mercury removal in the activated carbon, which is only impregnated with sulfur, drops significantly.
  • the activated carbon impregnated with sulfuric acid shows a good cleaning performance up to approx. 1000 hours, after which the cleaning performance drops.
  • the activated carbon impregnated with sulfuric acid / potassium iodide behaves somewhat better according to DE-PS 26 03 807.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)
PCT/EP1988/000387 1987-05-09 1988-05-06 Process for producing impregnated activated charcoal for eliminating mercury from gases WO1988008748A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3715526.1 1987-05-09
DE19873715526 DE3715526A1 (de) 1987-05-09 1987-05-09 Verfahren zur entfernung von quecksilber aus gasen

Publications (1)

Publication Number Publication Date
WO1988008748A1 true WO1988008748A1 (en) 1988-11-17

Family

ID=6327185

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1988/000387 WO1988008748A1 (en) 1987-05-09 1988-05-06 Process for producing impregnated activated charcoal for eliminating mercury from gases

Country Status (2)

Country Link
DE (1) DE3715526A1 (enrdf_load_stackoverflow)
WO (1) WO1988008748A1 (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006802A1 (de) * 1988-12-17 1990-06-28 Bergwerksverband Gmbh Verfahren zur herstellung eines katalysators zur entfernung von stickstoffoxiden aus abgasen
WO1990006803A1 (de) * 1988-12-17 1990-06-28 Bergwerksverband Gmbh Verfahren zur herstellung eines katalysators zur entfernung von stickstoffoxiden aus abgasen
RU2147924C1 (ru) * 1999-01-27 2000-04-27 Научно-исследовательский центр по проблемам управления ресурсосбережением и отходами Сорбент для поглощения паров ртути и способ его получения
RU2172644C2 (ru) * 1999-02-02 2001-08-27 Институт неорганической химии СО РАН Способ получения углеродсодержащего сорбента для извлечения ртути
JP2012106229A (ja) * 2010-10-22 2012-06-07 Futamura Chemical Co Ltd 水銀ガス除去用活性炭の製造方法
EP2785432A4 (en) * 2011-11-29 2016-03-30 Vaporlok Technology Llc MICRICULUM DETECTION FOR PACKAGING LIGHT LAMPS
WO2021055432A1 (en) * 2019-09-16 2021-03-25 Albemarle Corporation Processes for reducing environmental availability of environmental pollutants
RU2829370C1 (ru) * 2019-09-16 2024-10-30 Альбемарл Корпорейшн Способы снижения наличия в окружающей среде загрязняющих окружающую среду веществ
US12397332B2 (en) 2019-09-16 2025-08-26 Albemarle Amendments, Llc Processes for reducing environmental availability of environmental pollutants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4422661A1 (de) * 1994-06-28 1996-01-04 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Verfahren und Anordnung zur kontinuierlichen Abtrennung von Quecksilber aus strömenden Gasen

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603807A1 (de) * 1976-02-02 1977-08-04 Adsorptionstech Lab Verfahren zum entfernen von quecksilber
GB2122916A (en) * 1982-07-08 1984-01-25 Takeda Chemical Industries Ltd Mercury vapour separation
EP0102467A2 (de) * 1982-08-06 1984-03-14 Bergwerksverband GmbH Verfahren zur Herstellung von mit Elementarschwefel imprägnierten kohlenstoffhaltigen Adsorptionsmitteln

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7706879A (nl) * 1977-06-22 1978-12-28 Akzo Nv Werkwijze voor de bereiding van een vast kool- stofhoudend materiaal met sorbtievermogen voor metaalionen.

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2603807A1 (de) * 1976-02-02 1977-08-04 Adsorptionstech Lab Verfahren zum entfernen von quecksilber
GB2122916A (en) * 1982-07-08 1984-01-25 Takeda Chemical Industries Ltd Mercury vapour separation
EP0102467A2 (de) * 1982-08-06 1984-03-14 Bergwerksverband GmbH Verfahren zur Herstellung von mit Elementarschwefel imprägnierten kohlenstoffhaltigen Adsorptionsmitteln

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990006802A1 (de) * 1988-12-17 1990-06-28 Bergwerksverband Gmbh Verfahren zur herstellung eines katalysators zur entfernung von stickstoffoxiden aus abgasen
WO1990006803A1 (de) * 1988-12-17 1990-06-28 Bergwerksverband Gmbh Verfahren zur herstellung eines katalysators zur entfernung von stickstoffoxiden aus abgasen
US5179058A (en) * 1988-12-17 1993-01-12 Bergwerksverband Gmbh Process for manufacturing a carbonaceous catalyst for the reduction of nitrogen oxides in exhaust gases
RU2147924C1 (ru) * 1999-01-27 2000-04-27 Научно-исследовательский центр по проблемам управления ресурсосбережением и отходами Сорбент для поглощения паров ртути и способ его получения
RU2172644C2 (ru) * 1999-02-02 2001-08-27 Институт неорганической химии СО РАН Способ получения углеродсодержащего сорбента для извлечения ртути
JP2012106229A (ja) * 2010-10-22 2012-06-07 Futamura Chemical Co Ltd 水銀ガス除去用活性炭の製造方法
EP2785432A4 (en) * 2011-11-29 2016-03-30 Vaporlok Technology Llc MICRICULUM DETECTION FOR PACKAGING LIGHT LAMPS
WO2021055432A1 (en) * 2019-09-16 2021-03-25 Albemarle Corporation Processes for reducing environmental availability of environmental pollutants
CN114401786A (zh) * 2019-09-16 2022-04-26 雅宝公司 降低环境污染物的环境有效性的工艺
RU2829370C1 (ru) * 2019-09-16 2024-10-30 Альбемарл Корпорейшн Способы снижения наличия в окружающей среде загрязняющих окружающую среду веществ
US12397332B2 (en) 2019-09-16 2025-08-26 Albemarle Amendments, Llc Processes for reducing environmental availability of environmental pollutants

Also Published As

Publication number Publication date
DE3715526C2 (enrdf_load_stackoverflow) 1989-02-16
DE3715526A1 (de) 1988-11-17

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