ES396236A1 - Supplementary air cascade evaporation - Google Patents

Supplementary air cascade evaporation

Info

Publication number
ES396236A1
ES396236A1 ES396236A ES396236A ES396236A1 ES 396236 A1 ES396236 A1 ES 396236A1 ES 396236 A ES396236 A ES 396236A ES 396236 A ES396236 A ES 396236A ES 396236 A1 ES396236 A1 ES 396236A1
Authority
ES
Spain
Prior art keywords
supplementary air
evaporator
furnace
cascade evaporation
direct contact
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
ES396236A
Other languages
Spanish (es)
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.)
Combustion Engineering Inc
Original Assignee
Combustion Engineering Inc
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 Combustion Engineering Inc filed Critical Combustion Engineering Inc
Publication of ES396236A1 publication Critical patent/ES396236A1/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
    • 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
    • D21C11/10—Concentrating spent liquor by evaporation
    • D21C11/103—Evaporation by direct contact with gases, e.g. hot flue gases
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S423/00—Chemistry of inorganic compounds
    • Y10S423/03—Papermaking liquor

Landscapes

  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Paper (AREA)

Abstract

A chemical recovery unit in which black liquor from a pulping process is burned including a direct contact evaporator for concentrating the black liquor prior to its introduction into a furnace. Preheated air is used as the heating medium in the direct contact evaporator. The moisture laden air leaving the evaporator is used as secondary combustion air in the furnace.
ES396236A 1970-10-22 1971-10-21 Supplementary air cascade evaporation Expired ES396236A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8310270A 1970-10-22 1970-10-22

Publications (1)

Publication Number Publication Date
ES396236A1 true ES396236A1 (en) 1974-04-16

Family

ID=22176188

Family Applications (1)

Application Number Title Priority Date Filing Date
ES396236A Expired ES396236A1 (en) 1970-10-22 1971-10-21 Supplementary air cascade evaporation

Country Status (4)

Country Link
US (1) US3703919A (en)
BR (1) BR7107007D0 (en)
CA (1) CA939106A (en)
ES (1) ES396236A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765377A (en) * 1972-06-23 1973-10-16 Combustion Eng Air pollution control system for chemical recovery unit
US3926129A (en) * 1975-01-03 1975-12-16 Dorr Oliver Inc Evaporative concentration of waste sludges with incinerator exhaust gases
US4524725A (en) * 1983-06-30 1985-06-25 Cheng Paul J Self-cleaning heat exchanger
FI73474B (en) * 1985-04-25 1987-06-30 Tampella Oy Ab SAETT ATT AOTERVINNA VAERME OCH KEMIKALIER FRAON AVLUT.
US4768469A (en) * 1985-07-31 1988-09-06 Kabushiki Kaisha Toshiba Operation control apparatus for recovery boilers
US5133831A (en) * 1988-09-15 1992-07-28 Ahlstromforetagen Svenska Ab Method of concentrating black liquor by evaporation
FI85187C (en) * 1989-02-20 1992-03-10 Tampella Oy Ab Inlet system for combustion air in a recovery boiler
SE467741C (en) * 1991-09-05 1998-06-21 Kvaerner Pulping Tech Incineration of waste liquids
US5824275A (en) * 1992-12-29 1998-10-20 Combustion Engineering, Inc. Secondary and tertiary air nozzle for furnace apparatus
FI96359C (en) * 1994-11-17 1998-08-26 Tampella Power Oy Method and apparatus for regulating combustion air in a boiler plant
US20130104816A1 (en) * 2011-10-26 2013-05-02 General Electric Company System and method for operating heat recovery steam generators

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2516992A (en) * 1946-09-25 1950-08-01 Comb Eng Superheater Inc Chemical condenser and recovery unit
US2702235A (en) * 1951-03-20 1955-02-15 Combustion Eng Chemical ash dissolving tank for black liquor recovery units
US3047362A (en) * 1958-12-29 1962-07-31 Combustion Eng Treatment of waste liquors

Also Published As

Publication number Publication date
US3703919A (en) 1972-11-28
CA939106A (en) 1974-01-01
BR7107007D0 (en) 1973-04-17

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