SE7613916L - METHODS AND DEVICES FOR RECYCLING HEAT AND VOLATILE COMPONENTS FROM HOT GASES - Google Patents

METHODS AND DEVICES FOR RECYCLING HEAT AND VOLATILE COMPONENTS FROM HOT GASES

Info

Publication number
SE7613916L
SE7613916L SE7613916A SE7613916A SE7613916L SE 7613916 L SE7613916 L SE 7613916L SE 7613916 A SE7613916 A SE 7613916A SE 7613916 A SE7613916 A SE 7613916A SE 7613916 L SE7613916 L SE 7613916L
Authority
SE
Sweden
Prior art keywords
hot gases
methods
devices
volatile components
liquid
Prior art date
Application number
SE7613916A
Other languages
Swedish (sv)
Other versions
SE457963B (en
Inventor
K O Henricson
Original Assignee
Ahlstroem Oy
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 Ahlstroem Oy filed Critical Ahlstroem Oy
Publication of SE7613916L publication Critical patent/SE7613916L/en
Publication of SE457963B publication Critical patent/SE457963B/en

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

Landscapes

  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

A method and apparatus for recovery of easily evaporable components from hot gases, e.g. methanol and turpentine, particularly from the expansion vapors of waste liquor such as sulphate black liquor. Buffer vapors emerging from the heat exchanger are exposed to an indirect heat exchange in one or more successive concurrent or countercurrent evaporators. The liquid to be evaporated flows downwards along the heat exchanger surfaces of the evaporator to effectively use the heat contained in the hot gases for evaporation of the liquid. The easily evaporable components contained in such gases can be separated from the other condensates. The advance of the invention over prior art is in an increased economy of the recovery process
SE7613916A 1975-12-12 1976-12-10 Recovering evaporable components from hot blast gases - by passing gas in heat exchange with cooling liq. (SW 11.7.77) SE457963B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI753523A FI52601B (en) 1975-12-12 1975-12-12

Publications (2)

Publication Number Publication Date
SE7613916L true SE7613916L (en) 1977-06-13
SE457963B SE457963B (en) 1989-02-13

Family

ID=8509612

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7613916A SE457963B (en) 1975-12-12 1976-12-10 Recovering evaporable components from hot blast gases - by passing gas in heat exchange with cooling liq. (SW 11.7.77)

Country Status (3)

Country Link
CA (1) CA1087130A (en)
FI (1) FI52601B (en)
SE (1) SE457963B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE503351C2 (en) * 1994-09-06 1996-05-28 Ahlstroem Oy Process for the purification of secondary condensates in evaporation of liquor

Also Published As

Publication number Publication date
CA1087130A (en) 1980-10-07
SE457963B (en) 1989-02-13
FI52601B (en) 1977-06-30

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