WO1996009245A1 - Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen - Google Patents

Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen Download PDF

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Publication number
WO1996009245A1
WO1996009245A1 PCT/EP1995/003497 EP9503497W WO9609245A1 WO 1996009245 A1 WO1996009245 A1 WO 1996009245A1 EP 9503497 W EP9503497 W EP 9503497W WO 9609245 A1 WO9609245 A1 WO 9609245A1
Authority
WO
WIPO (PCT)
Prior art keywords
alkaline earth
earth metal
gases containing
hydrogen halides
sulphur dioxide
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.)
Ceased
Application number
PCT/EP1995/003497
Other languages
German (de)
English (en)
French (fr)
Inventor
Ulrich Rappold
Wolfgang Schick
Jörg SCHMID
Joachim Semel
Heinrich Merten
Matthias Schubert
Gerhard Luft
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Priority to JP8510552A priority Critical patent/JPH10505815A/ja
Priority to CZ97818A priority patent/CZ81897A3/cs
Priority to PL95320030A priority patent/PL320030A1/xx
Priority to US08/793,433 priority patent/US5888465A/en
Priority to EP95932671A priority patent/EP0782541B1/de
Priority to AU35638/95A priority patent/AU695169B2/en
Priority to KR1019970701747A priority patent/KR970706203A/ko
Priority to DE59507397T priority patent/DE59507397D1/de
Publication of WO1996009245A1 publication Critical patent/WO1996009245A1/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/56—Separation; Purification
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3231—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the coating or impregnating layer
    • B01J20/3234—Inorganic material layers
    • B01J20/3236—Inorganic material layers containing metal, other than zeolites, e.g. oxides, hydroxides, sulphides or salts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—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, aerosols
    • B01D53/02—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, aerosols by adsorption, e.g. preparative gas chromatography
    • 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
    • B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
    • B01J20/041—Oxides or hydroxides
    • 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
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • 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
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • 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
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/16—Alumino-silicates
    • B01J20/18—Synthetic zeolitic molecular sieves
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/32—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating
    • B01J20/3202—Impregnating or coating ; Solid sorbent compositions obtained from processes involving impregnating or coating characterised by the carrier, support or substrate used for impregnation or coating
    • B01J20/3204—Inorganic carriers, supports or substrates
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3408—Regenerating or reactivating of aluminosilicate molecular sieves
    • 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
    • B01J20/30—Processes for preparing, regenerating, or reactivating
    • B01J20/34—Regenerating or reactivating
    • B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/20—Halogens or halogen compounds
    • B01D2257/206—Organic halogen compounds

Definitions

  • alkali and alkaline earth compounds in particular sodium hydroxide and potassium hydroxide, are extremely aggressive substances, so that precautions must be taken when operating and maintaining the device for treating the gas mixtures.
  • Adsorption processes do not have these disadvantages, since there is no lowering of the temperature and therefore no drop below the dew point, which is why a reheating of the gas mixture after removal of the hydrogen halides is not necessary. Furthermore, aqueous systems containing aggressive substances are avoided in adsorption processes.
  • US 3,278,266 describes the adsorption of hydrogen halide from vapor mixtures of organic compounds.
  • the adsorbent consists of an oxidic compound of the second main group of the periodic table, which is applied to a carrier and can be regenerated by desorption.
  • the invention thus relates to the use of an adsorbent made of a porous ceramic carrier material which is impregnated with an alkaline earth metal salt solution, after evaporation of the solvent, the alkaline earth metal salt is pyrolysed at 200 to 800 ° C. to alkaline earth metal oxide • x H 2 0, where x is a number from 0 to 1 represents, for the selective separation of hydrogen halide from gases containing sulfur dioxide.
  • a solution of alkaline earth metal salt is introduced into the pores of the ceramic carrier material.
  • the ceramic carrier material can be made on the basis of Si0 2 or in particular Al 2 0 3 , but also using aluminum silicates, zeolites or other ceramic starting materials.
  • the alkaline earth metal salts are salts, individually or in a mixture, which form an activated oxide when heated to 200 to 800 ° C.
  • Magnesium salt solutions are preferably used, for example magnesium carbonate, magnesium chloride, magnesium nitrate or, in particular, magnesium acetate.
  • the carriers are dried, then the alkaline earth metal salt is used for one Pyrolysis in the pores required temperature converted into activated alkaline earth metal oxide. The lowest possible pyrolysis temperature is desirable since this increases the adsorption activity of the adsorbent produced.
  • the invention now offers the possibility of selectively adsorbing hydrogen halide, preferably hydrogen chloride, from a gas containing sulfur dioxide and thus separating it from sulfur dioxide.
  • Hydrogen halide is adsorbed on the adsorbent in the temperature range between 80 and 200 ° C, especially at 100 to 150 ° C, whereby sulfur dioxide passes unhindered through the bed.
  • no alkaline earth metal sulfate is formed. This is of great advantage, since otherwise alkaline earth metal sulfate cannot be regenerated to active MgO during regeneration, so that the ability to repeat hydrogen halide adsorption would not be present.
  • the adsorbent loaded with hydrogen bromide, hydrogen iodide or in particular hydrogen chloride can then be desorbed again at higher temperatures between 100 and 800 ° C., preferably at 400 to 450 ° C.
  • the adsorbent has to be flushed with a water-containing, oxygen-free gas stream in order to decompose the alkaline earth metal halide deposited in the pores of the carrier to the corresponding hydrogen halide and alkaline earth metal oxide.
  • a dry, oxygen-containing atmosphere in the same temperature range can be used to desorb the adsorbent loaded with hydrogen bromide, hydrogen iodine or hydrogen chloride.
  • the corresponding halogen is formed in addition to active alkaline earth metal oxide.
  • the adsorbent regenerated in this way can be used again for adsorption purposes.
  • Example 1 a preferred embodiment is described in the form of an example.
  • Example 1
  • 250 ml (bed height 10 cm) corresponding to approximately 260 g of the adsorbent produced according to US Pat. No. 3,278,266 (3.1% by weight magnesium oxide) are used in a cylindrical fixed-bed tube adsorber for the adsorption of hydrogen chloride.
  • the gas volume flow is 1.6 Nm 3 / h.
  • the temperature in the adsorber is 120 ° C.
  • the gas consists of nitrogen with 7.5 vol.% Oxygen, 10 vol.% Water vapor and 2,000 mg / Nm 3 hydrogen chloride as well as 2,800 mg / Nm 3 sulfur dioxide.
  • the adsorption time is 5 hours. Result:

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Treating Waste Gases (AREA)
  • Hydrogen, Water And Hydrids (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)
PCT/EP1995/003497 1994-09-19 1995-09-06 Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen Ceased WO1996009245A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP8510552A JPH10505815A (ja) 1994-09-19 1995-09-06 二酸化硫黄含有ガスからのハロゲン化水素の分離方法
CZ97818A CZ81897A3 (en) 1994-09-19 1995-09-06 Process of separating hydrogen halides from gases containing sulfur dioxide
PL95320030A PL320030A1 (en) 1994-09-19 1995-09-06 Method of separating hydrogen fluoride and/or chloride from sulphur oxide containing gases
US08/793,433 US5888465A (en) 1994-09-19 1995-09-06 Process for separating hydrogen halides from gases containing sulphur dioxide
EP95932671A EP0782541B1 (de) 1994-09-19 1995-09-06 Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen
AU35638/95A AU695169B2 (en) 1994-09-19 1995-09-06 Process for separating hydrogen halides from gases containing sulphur dioxide
KR1019970701747A KR970706203A (ko) 1994-09-19 1995-09-06 이산화황을 함유하는 기체로부터 할로겐화수소를 분리하는 방법(Process for separating hydrogen halides from gases containing sulphur dioxide)
DE59507397T DE59507397D1 (de) 1994-09-19 1995-09-06 Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4433246A DE4433246A1 (de) 1994-09-19 1994-09-19 Verfahren zur Herstellung eines reversiblen Adsorbens
DEP4433246.7 1994-09-19

Publications (1)

Publication Number Publication Date
WO1996009245A1 true WO1996009245A1 (de) 1996-03-28

Family

ID=6528528

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1995/003497 Ceased WO1996009245A1 (de) 1994-09-19 1995-09-06 Verfahren zur abtrennung von halogenwasserstoffen aus schwefeldioxidhaltigen gasen

Country Status (13)

Country Link
US (1) US5888465A (https=)
EP (1) EP0782541B1 (https=)
JP (1) JPH10505815A (https=)
KR (1) KR970706203A (https=)
CN (1) CN1158114A (https=)
AT (1) ATE187421T1 (https=)
AU (1) AU695169B2 (https=)
CZ (1) CZ81897A3 (https=)
DE (2) DE4433246A1 (https=)
PL (1) PL320030A1 (https=)
TW (1) TW304888B (https=)
WO (1) WO1996009245A1 (https=)
ZA (1) ZA957673B (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7371357B2 (en) * 2005-04-27 2008-05-13 Clean World Strategies Corp. Process for removal of pollutants
US20070000385A1 (en) * 2005-07-01 2007-01-04 Stouffer Mark R Adsorbents for removing H2S, other odor causing compounds, and acid gases from gas streams and methods for producing and using these adsorbents
CN107952418B (zh) * 2017-11-08 2020-11-17 昆明理工大学 一种选择吸附SO2烟气中HF和HCl的吸附剂制备方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085506B (de) * 1958-10-18 1960-07-21 Gerd Petersen Dr Ing Verfahren zum Auswaschen des Fluorgehaltes von Roestgasen
US3278266A (en) * 1963-05-13 1966-10-11 Petro Tex Chem Corp Vapor phase separation of hydrogen halides from hydrocarbons
FR2101882A5 (en) * 1970-08-10 1972-03-31 Auxiliar Ind Sa Empresa Chlorine/sulphur dioxide separation - using magnetite ferrous oxide or siderite to bind chlorine before recovery
US3653811A (en) * 1969-03-06 1972-04-04 Maina Konstantinovna Zagorskay Method of removing hydrogen halides from sulphur dioxide gas

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201751A (en) * 1975-05-06 1980-05-06 Heinz Gresch Gas purification
EP0190416A3 (de) * 1984-11-30 1988-07-27 Waagner-Biro Aktiengesellschaft Verfahren zur Abscheidung von Schadstoffen as Verbrennungsabgasen
US4639259A (en) * 1985-10-09 1987-01-27 Kaiser Aluminum & Chemical Corporation Promoted scavenger for purifying HCl-contaminated gases
DE3644102A1 (de) * 1986-12-23 1988-07-07 Metallgesellschaft Ag Abgasreinigungsverfahren
US4786484A (en) * 1987-02-03 1988-11-22 Sanitech, Inc. Process for absorbing toxic gas
GB2200621A (en) * 1987-02-06 1988-08-10 Coal Ind Treatment of gases
US4950464A (en) * 1989-02-10 1990-08-21 The Dow Chemical Company Purification of sulfuryl fluroide by selective adsorption
US5118480A (en) * 1990-06-25 1992-06-02 General Electric Environmental Services, Incorporated Method for removing hcl and hf from coal derived fuel gas

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1085506B (de) * 1958-10-18 1960-07-21 Gerd Petersen Dr Ing Verfahren zum Auswaschen des Fluorgehaltes von Roestgasen
US3278266A (en) * 1963-05-13 1966-10-11 Petro Tex Chem Corp Vapor phase separation of hydrogen halides from hydrocarbons
US3653811A (en) * 1969-03-06 1972-04-04 Maina Konstantinovna Zagorskay Method of removing hydrogen halides from sulphur dioxide gas
FR2101882A5 (en) * 1970-08-10 1972-03-31 Auxiliar Ind Sa Empresa Chlorine/sulphur dioxide separation - using magnetite ferrous oxide or siderite to bind chlorine before recovery

Also Published As

Publication number Publication date
DE4433246A1 (de) 1996-03-21
ZA957673B (en) 1996-04-15
AU695169B2 (en) 1998-08-06
EP0782541A1 (de) 1997-07-09
ATE187421T1 (de) 1999-12-15
JPH10505815A (ja) 1998-06-09
TW304888B (https=) 1997-05-11
DE59507397D1 (de) 2000-01-13
CZ81897A3 (en) 1997-08-13
KR970706203A (ko) 1997-11-03
US5888465A (en) 1999-03-30
PL320030A1 (en) 1997-09-01
EP0782541B1 (de) 1999-12-08
CN1158114A (zh) 1997-08-27
AU3563895A (en) 1996-04-09

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