DE407326C - Process for rendering the exhaust gases from sulphate pulp mills odorless - Google Patents

Process for rendering the exhaust gases from sulphate pulp mills odorless

Info

Publication number
DE407326C
DE407326C DEK88198D DEK0088198D DE407326C DE 407326 C DE407326 C DE 407326C DE K88198 D DEK88198 D DE K88198D DE K0088198 D DEK0088198 D DE K0088198D DE 407326 C DE407326 C DE 407326C
Authority
DE
Germany
Prior art keywords
odorless
rendering
exhaust gases
sulphate pulp
pulp mills
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.)
Expired
Application number
DEK88198D
Other languages
German (de)
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.)
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
Priority to DEK85796D priority Critical patent/DE405612C/en
Application filed by Individual filed Critical Individual
Priority to DEK88198D priority patent/DE407326C/en
Application granted granted Critical
Publication of DE407326C publication Critical patent/DE407326C/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/06—Treatment of pulp gases; Recovery of the heat content of the gases; Treatment of gases arising from various sources in pulp and paper mills; Regeneration of gaseous SO2, e.g. arising from liquors containing sulfur compounds
    • D21C11/08—Deodorisation ; Elimination of malodorous compounds, e.g. sulfur compounds such as hydrogen sulfide or mercaptans, from gas streams

Landscapes

  • Treating Waste Gases (AREA)

Description

Verfahren zum Geruchlosmachen der Abgase der Sulfatzellstoffabriken. Zusatz zum Patent 405612. Es hat sich herausgestellt, daß bei dem Verfahren nach dem Hauptpatent die Aufnahme der Merkaptane durch die Schwarzlauge begrenzt ist und daß es unter Umständen zur vollständigen Geruchlosmachung zweckmäßig ist, die Abgase noch mit Frischlauge nachzuwaschen.Process for rendering the exhaust gases from sulphate pulp mills odorless. Addendum to patent 405612. It has been found that in the process according to the main patent, the uptake of the mercaptans by the black liquor is limited and that it may be useful for complete odorlessness that Wash off exhaust gases with fresh lye.

Dieses Verfahren wird am besten in der Weise durchgeführt, daß man die vom Scheibenverdampfer abziehenden Gase zunächst mit Schwarzlauge vorwäscht und dann in einem Turm, wie er in dem Hauptpatent beschrieben ist, mit Frischlauge nachwäscht. Hierdurch erhält man vollkommen geruchlose Gase. Die Frischlauge wird in der üblichen Weise weiter verarbeitet.This procedure is best performed in such a way that one the gases withdrawn from the disc evaporator are first pre-washed with black liquor and then in a tower, as described in the main patent, with fresh liquor washes afterwards. This results in completely odorless gases. The fresh liquor will further processed in the usual way.

Statt Schwarzlauge kann man aber auch von vornherein nur Frischlauge verwenden, um die Gase vollständig geruchlos zu machen.Instead of black liquor, you can only use fresh liquor from the outset use to make the gases completely odorless.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Geruchlosmachen der Abgase der Sulfatzellstoffabriken nach Patent q.o56iz, dadurch gekennzeichnet, daß die übelriechenden Gase durch Frischlauge geleitet werden. z. Verfahren nach Patentanspruch i, dadurch gekennzeichnet, daß die Gase mit Schwarzlauge vor- und mit Frischlauge, nachgewaschen werden. 3. Vorrichtung zur Ausführung des Verfahrens nach Patentanspruch i und 2, dadurch gekennzeichnet, daß hinter dem Scheibenverdampfer ein Waschturm aufgestellt ist, in welchem die übelriechenden Gase durch Waschen mit Frischlauge vollkommen geruchlos gemacht werden.PATENT CLAIMS: i. Process for rendering the exhaust gases from sulphate pulp mills odorless according to patent q.o56iz, characterized in that the malodorous gases by fresh liquor be directed. z. Method according to claim i, characterized in that the gases are pre-washed with black liquor and rewashed with fresh liquor. 3. Device for carrying out the method according to claims i and 2, characterized in that that a washing tower is set up behind the disc evaporator, in which the foul-smelling gases can be made completely odorless by washing with fresh liquor.
DEK88198D 1923-05-01 1924-01-24 Process for rendering the exhaust gases from sulphate pulp mills odorless Expired DE407326C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEK85796D DE405612C (en) 1923-05-01 1923-05-01 Method and device for rendering the exhaust fumes from sulphate pulp mills odorless
DEK88198D DE407326C (en) 1923-05-01 1924-01-24 Process for rendering the exhaust gases from sulphate pulp mills odorless

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEK85796D DE405612C (en) 1923-05-01 1923-05-01 Method and device for rendering the exhaust fumes from sulphate pulp mills odorless
DEK88198D DE407326C (en) 1923-05-01 1924-01-24 Process for rendering the exhaust gases from sulphate pulp mills odorless

Publications (1)

Publication Number Publication Date
DE407326C true DE407326C (en) 1924-12-10

Family

ID=32963350

Family Applications (2)

Application Number Title Priority Date Filing Date
DEK85796D Expired DE405612C (en) 1923-05-01 1923-05-01 Method and device for rendering the exhaust fumes from sulphate pulp mills odorless
DEK88198D Expired DE407326C (en) 1923-05-01 1924-01-24 Process for rendering the exhaust gases from sulphate pulp mills odorless

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DEK85796D Expired DE405612C (en) 1923-05-01 1923-05-01 Method and device for rendering the exhaust fumes from sulphate pulp mills odorless

Country Status (1)

Country Link
DE (2) DE405612C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459962A1 (en) * 1990-05-31 1991-12-04 Chemrec Aktiebolag Purification of process gas from a partial combustion of black liquor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0459962A1 (en) * 1990-05-31 1991-12-04 Chemrec Aktiebolag Purification of process gas from a partial combustion of black liquor

Also Published As

Publication number Publication date
DE405612C (en) 1924-11-07

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