DE2617053A1 - Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube - Google Patents

Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube

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Publication number
DE2617053A1
DE2617053A1 DE19762617053 DE2617053A DE2617053A1 DE 2617053 A1 DE2617053 A1 DE 2617053A1 DE 19762617053 DE19762617053 DE 19762617053 DE 2617053 A DE2617053 A DE 2617053A DE 2617053 A1 DE2617053 A1 DE 2617053A1
Authority
DE
Germany
Prior art keywords
contact
nozzles
masses
contact tube
desulphurisation
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
DE19762617053
Other languages
German (de)
Inventor
Heinz Hoelter
Heinrich Igelbuescher
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Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19762617053 priority Critical patent/DE2617053A1/en
Priority to SE7611272A priority patent/SE7611272L/en
Publication of DE2617053A1 publication Critical patent/DE2617053A1/en
Ceased legal-status Critical Current

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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
    • B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

In the purificn. of crude gases (I) contg. SO2, H2S, NOx etc. using dry absorbents, the contact compsn. (II) is injected into the contact tube(s) and the carrier medium (III) of (II) and (II) have retarding and/or accelerating speed towards the (I) stream. The contact tube has nozzles for injecting (II) and more nozzles if necessary, (II) being injected at a higher rate through nozzle than through the subsequent nozzles etc, whilst the stream has a differential speed. Ad/adsorption rates of over 80% are obtd. with min press. loss, without (marked) increase in the energy consumption.

Description

Beschreibung und Erläuterung zur Zusatzpatentanmeldung Description and explanation of the additional patent application

'Verfahren und Vorrichtung zur Reinigung von Rohgasen, die mit z.B. S02 H2S, NOx etc. belastet sind, mittels trockener Absorptionsmassen, die mittels Düsen, die mit unterschiedlicher Geschwindigkeit arbeiten, in den Gasstrom eingeblasen werden' Zusatzanmeldung zur Hauptpatentanmeldung P 25 20 045.7 In der Hauptpatentanmeldung P 25 20 045.7 wird ein Verfahren zur Rauchgasreinigung, vorzugsweise zur Entschwefelung und N0x-Ad- oder Absorption von Rauchgasen beschrieben, indem fein aufgemahlene Kontaktmassen,wie z.B. Erdalkalistäube,in venturiartige Kontakt strecken trocken zur Kontaktierung mit dem Rohgas eingeblasen werden. 'Method and device for the purification of raw gases which are produced with e.g. S02 H2S, NOx etc. are contaminated by means of dry absorption masses, which by means of Nozzles that work at different speeds are blown into the gas flow 'Additional application to the main patent application P 25 20 045.7 In the main patent application P 25 20 045.7 is a process for flue gas cleaning, preferably for desulfurization and N0x-Ad- or absorption of flue gases described by finely ground Contact masses such as alkaline earth dusts in venturi-like contact stretch dry be blown in to make contact with the raw gas.

Dieses Verfahren ist für eine Hochleistungsentschwefelung sehr gut geeignet und erfordert natürlich aufgrund des höheren Druckbedarfs durch die venturiartigen Kontaktstrecken eine höhere Energie als es bei dem normalen trockenen Einblasverfahren in dem Feuerungsraum üblich ist. This process is very good for high-performance desulphurisation suitable and of course required due to the higher pressure required by the venturi-like Contact distances have a higher energy than is the case with the normal dry blowing method is common in the furnace.

Es gibt Anwendungsfälle, bei denen eine Hochleistungs entschwefelung von z.B. 98 und mehr % nicht erforderlich ist. There are applications in which a high-performance desulfurization of e.g. 98 and more% is not required.

Andererseits ist die Entschwefelung mit nur ca. 50 % Wirkungsgrad nach dem bekannten Verfahren 'Einblasen in den Feuerungsraum bzw. in die nachgeschalteten Abgasrohre' nicht ausreichend.On the other hand, the desulphurisation is only about 50% efficient according to the known method 'blowing into the furnace or into the downstream Exhaust pipes' not sufficient.

Um mit geringstem Druckverlust den Energiebedarf des Einblasens in den Feuerungsraum bzw. in die nachgeschalteten Rohgasabführungsleitungen beizubehalten bzw. nur unwesentlich zu erhöhen und trotzdem eine Ad- und oder Absorptionsrate der Schadstoffe aus dem Rohgas in Größenordnungen oberhalb von 80 % zu erzielen, wird erfindungsgemäß vorgeschlagen, die Absorptions massen mittels Düsenrohre in ein oder mehrere Kontaktrohre einzublasen, wobei die Austrittsgeschwindigkeiten der Kontaktmassen (Ad- oder Absorptionsmassen) gegenüber dem Gas strom verzögernde oder höhere Gasgeschwindigkeiten aufweisen als das Rohgas und bei dem erfindungsgemäßen Hintereinanderschalten von mehreren Einblasrohren die Kontaktmassen der einzelnen Austrittsstrahlbereiche aufgrund ihrer unterschiedlichen Geschwindigkeiten eine sukzessive Vergrößerung der Kontaktflächen in Strömungsrichtung bewirken und die Kontaktierungsmöglichkeit der Schadgase mit den Kontaktmassen wesentlich verbessert wird und zu Ad- und oder Absorptionsraten von über 80 % und bei genügender Hintereinanderschaltung sogar über 90 % führt.In order to meet the energy requirements for blowing into the to maintain the combustion chamber or the downstream raw gas discharge lines or to increase only insignificantly and nevertheless an adsorption and / or absorption rate to achieve the pollutants from the raw gas in orders of magnitude above 80%, is proposed according to the invention, the absorption masses by means of nozzle pipes in to blow in one or more contact tubes, with the exit velocities the contact masses (ad or absorption masses) delaying the gas flow or have higher gas velocities than the raw gas and in the case of the invention Connecting several injection pipes one behind the other, the contact masses of the individual Exit jet areas due to their different speeds cause successive enlargement of the contact surfaces in the direction of flow and the The possibility of contacting the harmful gases with the contact masses is significantly improved becomes and to ads and / or absorption rates of over 80% and with sufficient series connection even over 90% leads.

Untersuchungen in einer Versuchsanlage haben das Erfindungsgemäße bestätigt.Investigations in a test facility have what is according to the invention confirmed.

In der beiliegenden Zeichnung ist die erfindungsgemäße Ausführung dargestellt: mit 1 das Kontaktrohr zur Ad- oder Absorption, mit 2 die Rohgasgeschwindigkeit, mit 3 die Einblasrohre für die trockenen Ad- und oder Absorptionsmittel, mit 4 der erste Austrittsstrahl der Kontaktmassen, mit 5 der zweite Mistrittsstrahl der Kontaktmassen, mit 6 und 7 die Strahldüsen.The embodiment according to the invention is shown in the accompanying drawing shown: with 1 the contact tube for adsorption or absorption, with 2 the raw gas velocity, with 3 the injection pipes for the dry adsorbents and / or absorbents, with 4 the first exit ray of the contact masses, with 5 the second mistrittal ray of the contact masses, with 6 and 7 the jet nozzles.

Selbstverständlich ist die Erfindung nicht auf die vorstehend im einzelnen dargestellten und beschriebenen Ausbildungsformen beschränkt, sondern es sind zahlreiche Abänderungen möglich, ohne jedoch von dem Grundgedanken abzuweichen, zur Verbesserung der Kontaktierung von Schadstoffen im Rongas an Kontaktmassen Kontaktmassen-Transportdiisen in Strahlrohren hintereinander anzuordnen, ie gegenüber dem Rohgasstrom und auch vorzugsweise gegeneinander mit unterschiedlichen Geschwindigkeiten die Kontaktmassen in den Rohgasstrom hineinblasen.Of course, the invention is not limited to the above in detail Forms of training shown and described are limited, but there are numerous Changes are possible without deviating from the basic idea for improvement the contacting of pollutants in the Rongas on contact masses contact mass transport nozzles to be arranged one behind the other in radiant tubes, ie opposite the raw gas flow and also preferably the contact masses against each other at different speeds Blow into the raw gas flow.

Paterltt :Paterltt:

Claims (1)

Patent ansprüche: Anspruch 1: Verfahren und Vorrichtung zur Reinigung von Rohgasen, die mit z.B. S02, H2S, NO etc. belastet sind, mittels trockener Absorptionsmassen nach Hauptanmeldung P 25 20 045.7 dadurch gekennzeichnet, daß die Kontaktmassen zur Aufnahme der Schadstoffe erfindungsgemäß in ein oder mehrere Kontaktrohre eingeblasen werden, wobei das Trägermedium der Kontaktmassen und die Kontaktmassen verzögernde und oder beschleunigende Geschwindigkeiten gegenüber dem Rohgasstrom aufweisen.Claims: Claim 1: Method and device for cleaning of raw gases that are contaminated with e.g. S02, H2S, NO etc., by means of dry absorption masses according to main application P 25 20 045.7 characterized in that the contact masses according to the invention, blown into one or more catalyst tubes to absorb the pollutants be, the carrier medium of the contact masses and the contact masses delaying and or have accelerating speeds compared to the raw gas stream. Anspruch 2: Nach Anspruch 1 Vorrichtung zur Durchführung des Verfahrens dadurch gekennzeichnet, daß in einem oder mehreren Kontaktrohren 1 Kontaktmassen durch austragende Düsen 6 und 7 und erfordernisgerecht auch noch weitere Düsen eingebracht werden, wobei die Düse 6 die Kontaktmassen vorzugsweise mit größerer Geschwindigkeit einbläst als die nachgeschalteten Düsen 7 etc. und der Rohgasstrom eine wiederum differenzierte Geschwindigkeit gegenüber den Strahldüsen aufweist.Claim 2: According to claim 1 device for carrying out the method characterized in that 1 contact masses in one or more contact tubes through discharge nozzles 6 and 7 and additional nozzles as required be, the nozzle 6, the contact masses preferably at greater speed blows in as the downstream nozzles 7 etc. and the raw gas flow in turn has differentiated speed compared to the jet nozzles.
DE19762617053 1976-04-17 1976-04-17 Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube Ceased DE2617053A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19762617053 DE2617053A1 (en) 1976-04-17 1976-04-17 Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube
SE7611272A SE7611272L (en) 1976-04-17 1976-10-11 GAS CLEANING KIT AND DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762617053 DE2617053A1 (en) 1976-04-17 1976-04-17 Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube

Publications (1)

Publication Number Publication Date
DE2617053A1 true DE2617053A1 (en) 1977-11-10

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DE19762617053 Ceased DE2617053A1 (en) 1976-04-17 1976-04-17 Desulphurisation and denitration of crude gas - using dry absorbent injected into contact tube

Country Status (2)

Country Link
DE (1) DE2617053A1 (en)
SE (1) SE7611272L (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704637A1 (en) * 1987-02-14 1988-08-25 Hahn Verfahrenstech Process and apparatus for introducing adsorbent into flue gas ducts
DE4012982A1 (en) * 1990-04-24 1991-10-31 Ftu Gmbh Removing harmful (in)organic substance from gases - by addn. of finely divided substance with active surface and filtration
EP0539121A1 (en) * 1991-10-23 1993-04-28 The Babcock & Wilcox Company Gas scrubbers
TR28397A (en) * 1992-10-22 1996-05-30 Babcock & Wilcox Co Low pressure dry gas cleaner.
DE10214400A1 (en) * 2002-03-30 2003-10-23 Lurgi Bischoff Gmbh Method and device for gas cleaning

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331156A1 (en) * 1973-06-19 1975-01-30 Roechling Burbach Gmbh Stahl Purifying waste gas esp removal of gaseous fluorine cpds - using powder agent followed by filtering out of reaction prod

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2331156A1 (en) * 1973-06-19 1975-01-30 Roechling Burbach Gmbh Stahl Purifying waste gas esp removal of gaseous fluorine cpds - using powder agent followed by filtering out of reaction prod

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3704637A1 (en) * 1987-02-14 1988-08-25 Hahn Verfahrenstech Process and apparatus for introducing adsorbent into flue gas ducts
DE4012982A1 (en) * 1990-04-24 1991-10-31 Ftu Gmbh Removing harmful (in)organic substance from gases - by addn. of finely divided substance with active surface and filtration
EP0539121A1 (en) * 1991-10-23 1993-04-28 The Babcock & Wilcox Company Gas scrubbers
TR28397A (en) * 1992-10-22 1996-05-30 Babcock & Wilcox Co Low pressure dry gas cleaner.
DE10214400A1 (en) * 2002-03-30 2003-10-23 Lurgi Bischoff Gmbh Method and device for gas cleaning
DE10214400B4 (en) * 2002-03-30 2004-03-25 Lurgi Bischoff Gmbh Traction current reactor for gas cleaning

Also Published As

Publication number Publication date
SE7611272L (en) 1977-10-18

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