ES8505479A1 - Metodo y aparato para determinar el grado de coccion en un digestor de sulfito para las reacciones de deslignificacion - Google Patents

Metodo y aparato para determinar el grado de coccion en un digestor de sulfito para las reacciones de deslignificacion

Info

Publication number
ES8505479A1
ES8505479A1 ES527326A ES527326A ES8505479A1 ES 8505479 A1 ES8505479 A1 ES 8505479A1 ES 527326 A ES527326 A ES 527326A ES 527326 A ES527326 A ES 527326A ES 8505479 A1 ES8505479 A1 ES 8505479A1
Authority
ES
Spain
Prior art keywords
digester
delignification
cooking
degree
kappa number
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
ES527326A
Other languages
English (en)
Other versions
ES527326A0 (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.)
Babcock and Wilcox Co
Original Assignee
Babcock and Wilcox Co
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 Babcock and Wilcox Co filed Critical Babcock and Wilcox Co
Publication of ES8505479A1 publication Critical patent/ES8505479A1/es
Publication of ES527326A0 publication Critical patent/ES527326A0/es
Granted 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/228—Automation of the pulping processes
    • 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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
    • D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites

Landscapes

  • Paper (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

METODO PARA DETERMINAR EL GRADO DE COCCION EN UN DIGESTOR DE SULFITO PARA LAS REACCIONES DE DESLIGNIFICACION.COMPRENDE: A) DETECTAR LA TEMPERATURA DE DIGESTION Y LA PRESION DE DIGESTION; B) PROPORCIONAR LOS VALORES CORRESPONDIENTES A UNA PLURALIDAD DE CONSTANTES, INCLUYENDO LA CONSTANTE DE ENERGIA DE ACTIVIDAD PARA LA REACCION DE DIGESTION Y LA CONSTANTE DE GAS; C) CALCULAR LA VELOCIDAD DE REACCION DE DIGESTION DE LA DIGESTION DEL SULFITO, EN FUNCION DE LA TEMPERATURA DE LA DIGESTION, DE LA PRESION DE LA DIGESTION Y DE LA PLURALIDAD DE CONSTANTES, PARA OBTENER VALORES DE LAS MISMAS CON RESPECTO AL TIEMPO; D) OBTENER UN VALOR CORRESPONDIENTE A LA PRESION PARCIAL DEL ANHIDRIDO SULFUROSO, EN FUNCION DE LA PRESION Y TEMPERATURA DE LA DIGESTION; E) MULTIPLICAR EL VALOR DE LA PRESION PARCIAL POR EL VALOR DE LA VELOCIDAD DE REACCION, PARA OBTENER UN VALOR DE LA VELOCIDAD DE DESLIGNIFICACION; Y F) INTEGRAR EL VALOR DE LA VELOCIDAD DE DESLIGNIFICACION RESPECTO AL TIEMPO, PARA OBTENER UN NUMERO KAPPAPARA LA COCCION EN EL APARATO DE DIGESTION QUE CORRESPONDA AL GRADO DE COCCION DEL MISMO.
ES527326A 1982-11-24 1983-11-16 Metodo y aparato para determinar el grado de coccion en un digestor de sulfito para las reacciones de deslignificacion Granted ES527326A0 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44427282A 1982-11-24 1982-11-24

Publications (2)

Publication Number Publication Date
ES8505479A1 true ES8505479A1 (es) 1985-05-16
ES527326A0 ES527326A0 (es) 1985-05-16

Family

ID=23764204

Family Applications (1)

Application Number Title Priority Date Filing Date
ES527326A Granted ES527326A0 (es) 1982-11-24 1983-11-16 Metodo y aparato para determinar el grado de coccion en un digestor de sulfito para las reacciones de deslignificacion

Country Status (11)

Country Link
EP (1) EP0110683B1 (es)
JP (1) JPS59137584A (es)
KR (1) KR880000744B1 (es)
AU (1) AU2149983A (es)
BR (1) BR8306460A (es)
CA (1) CA1198858A (es)
DE (1) DE3370840D1 (es)
ES (1) ES527326A0 (es)
HK (1) HK95287A (es)
IN (1) IN159330B (es)
SG (1) SG60987G (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978425A (en) * 1989-06-13 1990-12-18 Elsag International B.V. Method for controlling the degree of cooking in a digester
US4990219A (en) * 1989-06-13 1991-02-05 Elsag International B.V. Apparatus for controlling the degree of cooking in a digester
EP0445321B1 (de) * 1990-03-05 1994-06-01 Siemens Aktiengesellschaft Verfahren zur Herstellung von Zellstoff in einem kontinuierlichen Kocher
CN1064096C (zh) * 1994-04-28 2001-04-04 东芝株式会社 蒸煮锅温度分布控制系统
WO1997013916A2 (de) * 1995-10-09 1997-04-17 Siemens Aktiengesellschaft Verfahren zur bestimmung des endpunktes der zellstoffkochung und anordnung zum steuern der kochzeit bei der zellstoffkochung in einem reaktor

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941649A (en) * 1972-07-14 1976-03-02 Mo Och Domsjo Aktiebolag Process for obtaining a predetermined Kappa number in sulfate pulping

Also Published As

Publication number Publication date
AU2149983A (en) 1984-05-31
CA1198858A (en) 1986-01-07
IN159330B (es) 1987-05-02
HK95287A (en) 1987-12-24
BR8306460A (pt) 1984-06-26
SG60987G (en) 1987-10-23
DE3370840D1 (en) 1987-05-14
JPS59137584A (ja) 1984-08-07
EP0110683B1 (en) 1987-04-08
EP0110683A1 (en) 1984-06-13
KR840006688A (ko) 1984-12-01
KR880000744B1 (ko) 1988-05-04
ES527326A0 (es) 1985-05-16

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970203