ES2049234T3 - Un metodo para activar material lignocelulosico con un gas que contiene dioxido de nitrogeno. - Google Patents

Un metodo para activar material lignocelulosico con un gas que contiene dioxido de nitrogeno.

Info

Publication number
ES2049234T3
ES2049234T3 ES88115896T ES88115896T ES2049234T3 ES 2049234 T3 ES2049234 T3 ES 2049234T3 ES 88115896 T ES88115896 T ES 88115896T ES 88115896 T ES88115896 T ES 88115896T ES 2049234 T3 ES2049234 T3 ES 2049234T3
Authority
ES
Spain
Prior art keywords
gas
lignocellulosic material
activating
separated
containing nitrogen
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 - Lifetime
Application number
ES88115896T
Other languages
English (en)
Inventor
Hans Olof Prof Samuelson
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.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
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 Mo och Domsjo AB filed Critical Mo och Domsjo AB
Application granted granted Critical
Publication of ES2049234T3 publication Critical patent/ES2049234T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • D21C1/00—Pretreatment of the finely-divided materials before digesting
    • 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

  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)
  • Immobilizing And Processing Of Enzymes And Microorganisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

LA PRESENTE INVENCION SE REFIERE A UN METODO PARA ACTIVAR MATERIAL LIGNOCELULOSICO ACUOSO CON UN GAS QUE CONTIENE OXIDO DE NITROGENO, SEGUIDO POR UNA ETAPA DE DESLIGNIFICACION CON OBJETO DE OBTENER UN PRODUCTO FINAL DE GRAN CALIDAD SIN, O SOLO CON UN PEQUEÑO EFECTO SOBRE EL ENTORNO. DE ACUERDO CON EL METODO DE LA INVENCION, EL MATERIAL LIGNOCELULOSICO SE PONE EN CONTACTO CON UN GAS QUE CONTIENE OXIGENO, Y EL GAS ACTIVANTE SE SEPARA DEL MATERIAL LIGNOCELULOSICO DURANTE Y/O DESPUES DEL PROCESO ACTIVANTE. EL METODO SE CARACTERIZA POR CONTROLAR EL SUMINISTRO DE GAS QUE CONTIENE OXIGENO, DE MODO QUE EL GAS SEPARADO CONTIENE POR LO MENOS 2 KG DE OXIDO DE NITROGENO CALCULADO SOBRE 1000 KG DE MATERIAL LIGNOCELULOSICO SECO, Y POR HACER REACCIONAR EL GAS SEPARADO EN UNA O MAS ETAPAS CON DISOLUCION ABSORBENTE CUYO PH ORIGINAL ESTA EN EL INTERVALO DE 3-13,5, Y PASAR EL GAS PURIFICADO, CON AYUDA DE LA DISOLUCION ABSORBENTE, A LA ATMOSFERA, O A UNA PLANTA DE DESTRUCCION, OPCIONALMENTE POSTERIOR A LA PURIFICACION DEL GAS.
ES88115896T 1987-09-28 1988-09-27 Un metodo para activar material lignocelulosico con un gas que contiene dioxido de nitrogeno. Expired - Lifetime ES2049234T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8703718A SE460543B (sv) 1987-09-28 1987-09-28 Foerfarande vid aktivering av lignocellulosamaterial med kvaevedioxid innehaallande gas

Publications (1)

Publication Number Publication Date
ES2049234T3 true ES2049234T3 (es) 1994-04-16

Family

ID=20369679

Family Applications (1)

Application Number Title Priority Date Filing Date
ES88115896T Expired - Lifetime ES2049234T3 (es) 1987-09-28 1988-09-27 Un metodo para activar material lignocelulosico con un gas que contiene dioxido de nitrogeno.

Country Status (12)

Country Link
EP (1) EP0309998B1 (es)
JP (1) JP2510424B2 (es)
AT (1) ATE101886T1 (es)
AU (1) AU605913B2 (es)
CA (1) CA1301412C (es)
DE (1) DE3887948T2 (es)
ES (1) ES2049234T3 (es)
FI (1) FI93231C (es)
NO (1) NO172698C (es)
NZ (1) NZ226104A (es)
SE (1) SE460543B (es)
ZA (1) ZA887229B (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE9200183L (sv) * 1992-01-23 1993-07-24 Kamyr Ab Avskiljningsanordning samt foerfarande

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165253A (en) * 1978-07-20 1979-08-21 Ivanov Mikhail A Process for producing pulp
SE421938B (sv) * 1980-06-05 1982-02-08 Mo Och Domsjoe Ab Forfarande for behandling av cellulosamassa med kveveoxider fore syrgasblekning
SE451023B (sv) * 1985-12-10 1987-08-24 Mo Och Domsjoe Ab Forfarande vid aktivering av lignocellulosamaterial med kvevedioxid innehallande gas

Also Published As

Publication number Publication date
NZ226104A (en) 1990-05-28
ATE101886T1 (de) 1994-03-15
NO884279L (no) 1989-03-29
SE8703718L (sv) 1989-03-29
FI884432A (fi) 1989-03-29
EP0309998A3 (en) 1991-07-17
JP2510424B2 (ja) 1996-06-26
AU2283288A (en) 1989-04-06
FI884432A0 (fi) 1988-09-27
CA1301412C (en) 1992-05-26
FI93231B (fi) 1994-11-30
SE460543B (sv) 1989-10-23
SE8703718D0 (sv) 1987-09-28
DE3887948D1 (de) 1994-03-31
DE3887948T2 (de) 1994-08-18
FI93231C (fi) 1995-03-10
NO884279D0 (no) 1988-09-27
EP0309998A2 (en) 1989-04-05
NO172698C (no) 1993-08-25
ZA887229B (en) 1989-06-28
NO172698B (no) 1993-05-18
EP0309998B1 (en) 1994-02-23
AU605913B2 (en) 1991-01-24
JPH01104894A (ja) 1989-04-21

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