AT77149B - Process for eliminating bad odors in exhaust gases from chemical processes. - Google Patents

Process for eliminating bad odors in exhaust gases from chemical processes.

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Publication number
AT77149B
AT77149B AT77149DA AT77149B AT 77149 B AT77149 B AT 77149B AT 77149D A AT77149D A AT 77149DA AT 77149 B AT77149 B AT 77149B
Authority
AT
Austria
Prior art keywords
exhaust gases
chemical processes
bad odors
eliminating bad
odors
Prior art date
Application number
Other languages
German (de)
Original Assignee
Waldhof Zellstoff Fab
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 Waldhof Zellstoff Fab filed Critical Waldhof Zellstoff Fab
Application granted granted Critical
Publication of AT77149B publication Critical patent/AT77149B/en

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Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Beseitigung   übler   Gerüche in Abgasen chemischer Prozesse. 



   Trotz der grossen Anzahl verschiedenartigster Verfahren, welche zur Beseitigung der bei vielen chemischen Prozessen entstehenden üblen Gerüche schon    vorgeschlagenworden   sind, ist es noch nicht in allen Fällen gelungen, dieses Übelstandes Herr zu werden. Besonders schwierig hat sich die Lösung der Aufgabe z. B. bei solchen Abgasen erwiesen, welche erhebliche Mengen von Schwefel bzw. Schwefelverbindungen. (Schwefelwasserstoff,   mercaptanartige Produkte usw. ) enthalten. Erschwerend wirkt in der Regel noch der Um-   stand, dass bei den meisten Abgasen die übelriechenden Bestandteile in sehr grosser Verdünnung vorhanden sind. 



   Man hat unter anderem schon versucht, die Gerüche dadurch zu beseitigen, dass 
 EMI1.1 
 häufig wieder verlassen werden musste und man zu der Ansicht kam, dass die Beseitigung derart hartnäckiger Gerüche in den Abgasen durch einfaches Verbrennen unmöglich sei bzw. hiezu mindestens die Temperatur der Knallgasflamme erforderlich wäre   (vgl. z. l !.   



  D. R. P. Nr. 226658, Seite 2, Zeile 68 bis 73). 



   Versuche haben nun aber ergeben, dass man selbst in schwierigsten Fällen, wie bei den obengenannten schwefelhaltigen Abgasen, die üblen   Gerüche vollständig durch Ver-   brennung beseitigen kann, wenn man die Abgase mit oder an Stelle der   Priml1l'luft   in den   Vrga8raum   von   Luftgasgeneratoren   oder ähnlich wirkenden Anlagen leitet.

   Der Überraschende Erfolg dieses Verfahres, der in einer absoluten Vernichtung der schädlichen und unangenehmen Gerüche besteht, erklärt sich einmal dadurch. dass die Abgase in den Generatoren eine relativ hohe Verbrennungsschicht durchstreichen müssen und zweitens dadurch, dass die hiebei etwa nicht verbrannten geringen Reste der übelriechenden Bestandteile nicht nach aussen entweichen, sondern sich dem Generatorgas beimischen und mit diesem bei der Ofenfeuerung verbrannt werden. 



   Das Verfahren kann also beispielsweise einfach in der Weise ausgeführt werden.   dass   die übelriechenden Abgase von dem   Rehktionsapparate   (Ofen, Kocher und dgl.) durch
Exhaustor abgesangt und direkt oder durch zwischengeschaltete   Wa8chgefUe,     StaubssmMkt     und dgl. hinâurch   unter den Rost eines Luftgasgenerators geblasen werden. Beim Durch- gang durch die glühende Kohlenschicht des Generatorschachtes werden die   übelriecbenden  
Bestandteile in der   Rege ! vollständig   verbrannt. Falls aber noch geringe Anteile un- 
 EMI1.2 
 der Verbrennung dieses Gases mit vernichtet. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Process for eliminating bad odors in exhaust gases from chemical processes.



   In spite of the large number of very different methods which have already been proposed for the elimination of the unpleasant odors arising in many chemical processes, it has not yet been possible to master this problem in all cases. Particularly difficult has the solution of the task z. B. proven in such exhaust gases, which significant amounts of sulfur or sulfur compounds. (Hydrogen sulfide, mercaptan-like products, etc.). As a rule, the fact that the malodorous components are very diluted in most exhaust gases makes things even more difficult.



   Attempts have been made, among other things, to eliminate odors by
 EMI1.1
 often had to be left again and one came to the conclusion that the removal of such stubborn odors in the exhaust gases was impossible by simply burning or at least the temperature of the oxyhydrogen flame would be required (cf. z. 1!



  D. R. P. No. 226658, page 2, lines 68 to 73).



   Experiments have now shown that even in the most difficult cases, as with the above-mentioned sulfur-containing exhaust gases, the unpleasant smells can be completely eliminated by burning if the exhaust gases are fed into the chamber of air gas generators or similar with or instead of the primary air acting plants.

   The surprising success of this procedure, which consists in the absolute elimination of harmful and unpleasant odors, is explained by this. that the exhaust gases in the generators have to penetrate a relatively high level of combustion and, secondly, that the small residues of the malodorous components that have not been burned do not escape to the outside, but mix with the generator gas and are burned with it when the furnace is fired.



   The method can thus be carried out simply in this way, for example. that the foul-smelling exhaust gases from the rehabilitation apparatus (oven, stove and the like) through
Exhaustor sang and blown directly or through intermediary vibrations, dust and the like under the grate of an air gas generator. When passing through the glowing layer of coal in the generator shaft, the malodorous ones become
Components in the rule! completely burned. But if there are still small shares
 EMI1.2
 the combustion of this gas is also destroyed.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : VerfahrenzurBeseitigungüblerGerüchevonAbgasenchemischerProzessedurch Verbrennung, dadurch gekennzeichnet, dass die Abgase mit oder an Stelle der Primärluft EMI1.3 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Process for the elimination of bad smells of exhaust gas chemical processes by combustion, characterized in that the exhaust gases with or instead of the primary air EMI1.3 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT77149D 1917-04-16 1917-04-16 Process for eliminating bad odors in exhaust gases from chemical processes. AT77149B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT77149T 1917-04-16

Publications (1)

Publication Number Publication Date
AT77149B true AT77149B (en) 1919-07-25

Family

ID=3598763

Family Applications (1)

Application Number Title Priority Date Filing Date
AT77149D AT77149B (en) 1917-04-16 1917-04-16 Process for eliminating bad odors in exhaust gases from chemical processes.

Country Status (1)

Country Link
AT (1) AT77149B (en)

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