HUP0204148A2 - Method for the removal of nox and no2 from the residual gas in nitric acid production - Google Patents

Method for the removal of nox and no2 from the residual gas in nitric acid production

Info

Publication number
HUP0204148A2
HUP0204148A2 HU0204148A HUP0204148A HUP0204148A2 HU P0204148 A2 HUP0204148 A2 HU P0204148A2 HU 0204148 A HU0204148 A HU 0204148A HU P0204148 A HUP0204148 A HU P0204148A HU P0204148 A2 HUP0204148 A2 HU P0204148A2
Authority
HU
Hungary
Prior art keywords
nox
residual gas
nitric acid
content
removal
Prior art date
Application number
HU0204148A
Other languages
English (en)
Inventor
Markus Koegel
Rainer Maurer
Meinhard Schwefer
Thomas Turek
Original Assignee
Uhde 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 Uhde Gmbh filed Critical Uhde Gmbh
Publication of HUP0204148A2 publication Critical patent/HUP0204148A2/hu

Links

Classifications

    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B21/00—Nitrogen; Compounds thereof
    • C01B21/20—Nitrogen oxides; Oxyacids of nitrogen; Salts thereof
    • C01B21/24—Nitric oxide (NO)
    • C01B21/26—Preparation by catalytic or non-catalytic oxidation of ammonia
    • C01B21/265—Preparation by catalytic or non-catalytic oxidation of ammonia characterised by the catalyst
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
    • B01J29/072—Iron group metals or copper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/504—ZSM 5 zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • 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
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/151—Reduction of greenhouse gas [GHG] emissions, e.g. CO2

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)

Abstract

A találmány tárgya eljárás NOx és N2O tartalom csökkentéséresalétromsav előállításánál keletkező maradék gázokból, oly módon, hogyaz abszorpciós toronyból elvezetett maradék gázt a maradék gázturbinába történő bevezetés előtt egy kétlépéses kombináción vezet át,és az első lépésben az NOx tartalmat katalitikus redukciós eljárássalredukálják, és a második lépésben az N2O tartalmat nitrogénre ésoxigénre történő lebontással redukálják, ahol a második lépésbebevezetett gázban az NOx/N2O mólarány 0,001-0,5, és ezt a gázt amásodik lépésben egy vagy több, vassal töltött zeolitot tartalmazókatalizátorral érintkeztetik, és ahol a második lépés üzemi nyomása 4-12 bar. Ó
HU0204148A 2000-01-14 2001-01-09 Method for the removal of nox and no2 from the residual gas in nitric acid production HUP0204148A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10001541A DE10001541B4 (de) 2000-01-14 2000-01-14 Verfahren zur Beseitigung von NOx und N¶2¶O aus dem Restgas der Salpetersäureproduktion
PCT/EP2001/000157 WO2001051182A1 (de) 2000-01-14 2001-01-09 VERFAHREN ZUR BESEITIGUNG VON NOx UND N2O AUS DEM RESTGAS DER SALPETERSÄUREPRODUKTION

Publications (1)

Publication Number Publication Date
HUP0204148A2 true HUP0204148A2 (en) 2003-05-28

Family

ID=7627658

Family Applications (1)

Application Number Title Priority Date Filing Date
HU0204148A HUP0204148A2 (en) 2000-01-14 2001-01-09 Method for the removal of nox and no2 from the residual gas in nitric acid production

Country Status (19)

Country Link
US (1) US7485276B2 (hu)
EP (1) EP1268040B1 (hu)
KR (1) KR100723819B1 (hu)
CN (1) CN1239231C (hu)
AT (1) ATE286775T1 (hu)
AU (1) AU773571B2 (hu)
CA (1) CA2397265C (hu)
CZ (1) CZ300370B6 (hu)
DE (2) DE10001541B4 (hu)
ES (1) ES2236246T3 (hu)
HU (1) HUP0204148A2 (hu)
IL (1) IL150699A (hu)
MX (1) MXPA02006925A (hu)
NO (1) NO334920B1 (hu)
PL (1) PL205073B1 (hu)
PT (1) PT1268040E (hu)
RU (1) RU2259227C2 (hu)
WO (1) WO2001051182A1 (hu)
ZA (1) ZA200205467B (hu)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10215605A1 (de) * 2002-04-09 2003-10-30 Uhde Gmbh Entstickungsverfahren
DE10226461A1 (de) * 2002-06-13 2004-01-22 Uhde Gmbh Verfahren und Vorrichtung zur Verringerung des Gehaltes an NOx und N2O in Gasen
EP1720799A2 (de) * 2004-02-23 2006-11-15 Uhde GmbH Verfahren zur salpetersäureproduktion sowie dafür geeignete anlage
BRPI0607613A2 (pt) * 2005-02-28 2009-09-22 Catalytic Solutions Inc catalisador e método para reduzir óxidos de nitrogênio em fluxos de exaustão com hidrocarbonetos ou álcoois
DE102005022650A1 (de) * 2005-05-11 2006-11-16 Uhde Gmbh Verfahren zur Verringerung des Gehaltes an Stickoxiden in Gasen
KR100859747B1 (ko) 2007-02-05 2008-09-24 고등기술연구원연구조합 질소 및 질소산화물 가스를 감소시키기 위한 방법 및 장치
JP5141063B2 (ja) * 2007-03-26 2013-02-13 トヨタ自動車株式会社 排ガス浄化装置
DE102007038711A1 (de) 2007-08-14 2009-02-19 Uhde Gmbh Katalysator, Verfahren zu dessen Herstellung und dessen Verwendung
KR101022247B1 (ko) * 2008-08-27 2011-03-21 그린프라 주식회사 Ｎ2Ｏ 및 ＮＯｘ 동시환원용 촉매 및 그 제조방법
DK2995367T3 (en) * 2009-04-17 2018-04-09 Johnson Matthey Plc COPPER CATALYST SUPPORTED BY MOLECOOL SIGNS WITH SMALL RESISTANCE TO SKIN / FAT AGE TO REDUCE NITROGEN OXIDES
GB2475740B (en) * 2009-11-30 2017-06-07 Johnson Matthey Plc Catalysts for treating transient NOx emissions
DE102010022775A1 (de) 2010-06-04 2011-12-08 Uhde Gmbh Verfahren und Vorrichtung zur Beseitigung von NOx und N2O
EP2428659B1 (de) * 2010-09-13 2016-05-18 Umicore AG & Co. KG Katalysator zur Entfernung von Stickoxiden aus dem Abgas von Dieselmotoren
DE102011011881A1 (de) * 2011-02-21 2012-08-23 Thyssenkrupp Uhde Gmbh Verfahren zur Beseitigung von N2O und NOX aus dem Prozess zur Salpetersäureherstellung
DE102011004522A1 (de) * 2011-02-22 2012-08-23 Ford Global Technologies, Llc Verfahren zum Betreiben einer fremdgezündete Brennkraftmaschine mit Abgasnachbehandlung und Brennkraftmaschine zur Durchführung eines derartigen Verfahrens
CN102266769A (zh) * 2011-06-14 2011-12-07 张丽莉 一种用于同步脱硝脱汞的催化剂及其制备方法
DE102011121188A1 (de) * 2011-12-16 2013-06-20 Thyssen Krupp Uhde Gmbh Vorrichtung und Verfahren zur Beseitigung von NOx und N20
EP2812283B1 (en) * 2012-02-06 2020-09-16 Basf Se Process and apparatus for treatment of gas streams containing nitrogen oxides
DE102012010017A1 (de) * 2012-05-22 2013-11-28 Thyssenkrupp Uhde Gmbh Verfahren zur Verminderung der Stickoxid-Abgaskonzentration in einer Salpetersäureanlage beim Ab- und/oder Anfahren sowie dafür geeignete Salpetersäureanlagen
CN102688687A (zh) * 2012-05-24 2012-09-26 柳州化工股份有限公司 一种催化分解硝酸尾气n2o的新工艺
US9517457B2 (en) 2013-10-30 2016-12-13 Cummins Inc. Aftertreatment systems with reduced N2O generation
CN104923033A (zh) * 2014-03-19 2015-09-23 内蒙古乌拉山化肥有限责任公司 一种硝酸氮氧化物尾气回收的方法
DE102014210661A1 (de) * 2014-06-04 2015-12-17 Thyssenkrupp Ag Verringerung der Emission von Stickoxiden beim Anfahren von Anlagen zur Herstellung von Salpetersäure
CN104150450B (zh) * 2014-08-22 2016-04-27 南京大学 一种可实现尾气压力能回收利用的硝酸生产装置及处理方法
CN104190225B (zh) * 2014-09-27 2016-06-08 安徽金禾实业股份有限公司 硝酸尾气的回收净化方法及装置
PL237044B1 (pl) 2015-03-13 2021-03-08 Inst Nowych Syntez Chemicznych Nośnikowy katalizator do redukcji emisji tlenku azotu(I) z instalacji kwasu azotowego oraz sposób jego wytwarzania
EP3162427A1 (en) * 2015-10-28 2017-05-03 Casale SA A method and apparatus for removing nox and n2o from a gas
AT517862A1 (de) * 2015-11-09 2017-05-15 M A L Umwelttechnik - Gmbh Verfahren zur selektiven Reduktion von Stickoxiden in heißen Gasen
EP3377198A1 (en) * 2015-11-18 2018-09-26 Shell Internationale Research Maatschappij B.V. Improved process for removing nox from exhaust gas
CN105396460B (zh) * 2015-12-25 2019-12-24 华烁科技股份有限公司 一种高效联合脱除N2O和NOx的方法
DE102016206872A1 (de) * 2016-04-22 2017-10-26 Thyssenkrupp Ag Verfahren zur Verminderung der NOx-Abgaskonzentration in einer Anlage zur Herstellung von Salpetersäure beim Ab- und/oder Anfahren der Anlage
RU2755022C2 (ru) 2016-10-28 2021-09-09 Касале Са Способ удаления оксидов азота из газа с использованием подвергнутого ионному обмену с железом цеолитного катализатора
CN108313993B (zh) * 2017-01-17 2020-01-03 中国科学技术大学 一种硝酸的合成方法
CN108993579A (zh) * 2017-06-07 2018-12-14 南京理工大学 一种Fe-ZSM-5@Ce/meso-SiO2脱硝催化剂及其制备方法
BR112020005604A2 (pt) * 2017-11-30 2020-09-29 Casale Sa processo para a produção de ácido nítrico com redução terciária de n2o e nox
EP3533512A1 (en) 2018-03-01 2019-09-04 Casale Sa Process for reducing the content of nox and n2o from a tail gas of a nitric acid process
US20230356163A1 (en) 2020-02-25 2023-11-09 Thyssenkrupp Industrial Solutions Ag Reactor for the catalytic treatment of a gas stream
DE102021201811A1 (de) 2020-02-25 2021-08-26 Thyssenkrupp Ag Reaktor für die katalytische Behandlung eines Gasstroms
JP2023519742A (ja) * 2020-04-01 2023-05-12 トプソー・アクチエゼルスカベット プロセスオフガス中のＮＯｘおよび一酸化二窒素の除去のための方法
KR102183166B1 (ko) 2020-06-05 2020-11-26 대구대학교 산학협력단 철 이온이 교환된 이산화티타늄 지지체에 담지된 오산화바나듐-삼산화텅스텐 촉매 및 이를 이용한 질소산화물 제거방법
CN112591722B (zh) * 2020-12-16 2022-05-17 四川金象赛瑞化工股份有限公司 一种工业级硝酸与电子级硝酸的联产方法
WO2023117758A1 (en) 2021-12-23 2023-06-29 Topsoe A/S A process for treating gas streams with high concentration of n2o

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1596425A (hu) * 1968-12-27 1970-06-15
US4571329A (en) * 1984-08-13 1986-02-18 Babcock-Hitachi Kabushiki Kaisha Ammonia reduction-denitration process and apparatus therefor
SU1725991A1 (ru) * 1990-04-06 1992-04-15 Пермский политехнический институт Способ каталитического разложени оксида азота (I)
US5200162A (en) 1992-04-01 1993-04-06 Uop Process for N2 O decomposition
JPH06165919A (ja) * 1992-11-30 1994-06-14 Ishikawajima Harima Heavy Ind Co Ltd 亜酸化窒素の除去方法
JPH06238168A (ja) * 1993-02-15 1994-08-30 Tosoh Corp 窒素酸化物の接触還元触媒用担体，接触還元触媒及び接触還元方法
FR2705036B1 (fr) * 1993-05-10 1995-06-16 Paroisse Sa Grande Procédé pour abaisser la teneur en protoxyde d'azote dans les effluents gazeux, en particulier dans ceux qui sont issus de synthèses par oxydation nitrique.
DE4413404C2 (de) * 1994-04-18 1999-01-14 Degussa Verfahren zur katalytischen Zersetzung von in Gasen enthaltenem Distickstoffmonoxid in die Elemente
DE19533715A1 (de) 1995-09-12 1997-03-13 Basf Ag Verfahren zum Entfernen von Stickstoffoxiden aus einem diese enthaltenden Gasstrom
FR2773144B1 (fr) * 1997-12-31 2000-02-04 Grande Paroisse Sa Catalyseur a base de ferrierite/fer pour la reduction catalytique de la teneur de gaz en protoxyde d'azote. son procede d'obtention. application au traitement de gaz industriels
DE19820515A1 (de) * 1998-05-08 1999-11-11 Alsi Penta Zeolithe Gmbh Verfahren zur Herstellung eines Katalysators für die Reinigung von Abgasen, die Stickstoffoxide in Gegenwart von Sauerstoff und Wasser enthalten
FR2789911B1 (fr) * 1999-02-18 2001-05-04 Grande Paroisse Sa Procede pour abattre simultanement les oxydes nitriques et le protoxyde d'azote dans les gaz qui en contiennent
US7438878B2 (en) * 2001-03-12 2008-10-21 Basf Catalysts Llc Selective catalytic reduction of N2O

Also Published As

Publication number Publication date
PL205073B1 (pl) 2010-03-31
RU2002121781A (ru) 2004-03-27
WO2001051182A1 (de) 2001-07-19
CN1395502A (zh) 2003-02-05
EP1268040B1 (de) 2005-01-12
ATE286775T1 (de) 2005-01-15
CA2397265A1 (en) 2001-07-19
KR100723819B1 (ko) 2007-06-04
DE10001541A1 (de) 2001-08-02
NO20023341L (no) 2002-08-27
AU773571B2 (en) 2004-05-27
PL356217A1 (en) 2004-06-28
NO334920B1 (no) 2014-07-14
ZA200205467B (en) 2003-12-31
EP1268040A1 (de) 2003-01-02
RU2259227C2 (ru) 2005-08-27
DE10001541B4 (de) 2005-04-28
US7485276B2 (en) 2009-02-03
AU2845801A (en) 2001-07-24
CA2397265C (en) 2009-03-24
IL150699A (en) 2009-02-11
CZ300370B6 (cs) 2009-05-06
US20030143142A1 (en) 2003-07-31
PT1268040E (pt) 2005-05-31
ES2236246T3 (es) 2005-07-16
CN1239231C (zh) 2006-02-01
CZ20022435A3 (cs) 2003-05-14
DE50105064D1 (de) 2005-02-17
MXPA02006925A (es) 2002-11-29
NO20023341D0 (no) 2002-07-11
KR20030004320A (ko) 2003-01-14

Similar Documents

Publication Publication Date Title
HUP0204148A2 (en) Method for the removal of nox and no2 from the residual gas in nitric acid production
HUP0204088A2 (hu) Eljárás NOx és N2O eltávolítására
JP4512238B2 (ja) 廃ガス流から窒素酸化物を除去する方法
NO20044858L (no) Fremgangsmate for fjernelse av nitrogenoksider
US9011808B2 (en) Method for removing impurities from gas flows comprising oxygen
DK1370342T3 (da) Fremgangsmåde til nedsættelse af indholdet af N2O og NOX i gasser
CA2366741A1 (fr) Procede pour abattre simultanement les oxydes nitriques et le protoxyde d'azote dans les gaz qui en contiennent
HUP0204532A2 (hu) N2O lebontására alkalmas katalizátor, ennek alkalmazása és előállítása
NO20020122D0 (no) Fremgangsmåte og anordning for reduksjon av dinitrogenoksyd
HUP0204236A2 (hu) Eljárás N2O eltávolítására salétromsav előállításánál
FI88149C (fi) Foerfarande foer minskning av kvaeveoxidemissioner
NO20033231L (no) Fremgangsmåte for samtidig fjerning av nitrogenoksider og lystgass fra en gasström inneholdende nitrogenoksid og lystgass
ZA943214B (en) Process for reducing the nitrous oxide content in gaseious effluents.
CA2282174A1 (en) Method of denitrating exhaust gas
NO20033886D0 (no) Fremgangsmåte for redusering av N2O-innholdet i gasser og utvalgte katalysatorer
WO2005082779A3 (de) Verfahren zur salpetersäureproduktion sowie dafür geeignete anlage
RU2001103790A (ru) Способ производства азотной кислоты
JP2000189752A (ja) 内燃機関等の排気ガス浄化用触媒の製造方法
UA39816A (uk) Сіркостійкий каталізатор для відновлення оксидів азоту вуглеводнями в окислювальній атмосфері і спосіб його одержання
IT1318500B1 (it) Procedimento ed impianto per la depurazione di gas combustibili, inparticolare provenienti da un reattore di gassificazione.

Legal Events

Date Code Title Description
FD9A Lapse of provisional protection due to non-payment of fees