BR9711890A - Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa. - Google Patents
Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa.Info
- Publication number
- BR9711890A BR9711890A BR9711890-7A BR9711890A BR9711890A BR 9711890 A BR9711890 A BR 9711890A BR 9711890 A BR9711890 A BR 9711890A BR 9711890 A BR9711890 A BR 9711890A
- Authority
- BR
- Brazil
- Prior art keywords
- steaming
- high pressure
- pulp
- carried out
- less
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 238000004537 pulping Methods 0.000 title 1
- 238000010025 steaming Methods 0.000 abstract 5
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010411 cooking Methods 0.000 abstract 1
- 210000003127 knee Anatomy 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 239000002023 wood Substances 0.000 abstract 1
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
- D21C1/02—Pretreatment of the finely-divided materials before digesting with water or steam
-
- 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
-
- 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
- D21C7/00—Digesters
- D21C7/06—Feeding devices
Landscapes
- Paper (AREA)
Abstract
Patente de Invenção: <B>"PROCESSO E APARELHO PARA FORMAçãO DE POLPA COM AQUECIMENTO CONTROLADO PARA MELHORAR A DESLIGNIFICAçãO E A RESISTêNCIA DA POLPA<D>". Passagem por vapor e formação de lama a baixa temperatura de cavacos de madeira resulta em melhoria significativa no tratamento, os cavacos sendo mantidos a uma temperatura abaixo de 110C (mais desejavelmente a cerca de 105C ou menos e mais desejavelmente a cerca de 100C menos) até realmente aquecido até uma temperatura de cozimento. A passagem por vapor pode ser realizada utilizando-se uma tremonha vertical para cavacos com uma convergência dimensional e saída lateral, ou um vaso horizontal para passagem por vapor, o dispositivo para passagem por vapor conectado a um alimentador de alta pressão. Uma bomba que tem o NPSHR menor que NPSHA pode ser utilizada para trazer lama para o interior do alimentador de alta pressão a partir do dispositivo de passagem por vapor, ou uma bomba pode ser colocada entre o dispositivo para passagem por vapor e o alimentador de alta pressão, para forçar lama para o interior do alimentador de alta pressão através de um conduto que inclui um joelho encurvado. A passagem por vapor é realizada a uma pressão de 0,35kg/cm~ 2~ g (5psig), ou menos, preferivelmente é relizada passagem por vapor substancialmente atmosférica. A polpa produzida tipicamente tem propriedades de resistência no mínimo 10% maiores que a polpa produzida a partir de material que é passado por vapor e tornado lama a temperatura de 110 C.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/729,022 US5736006A (en) | 1996-10-10 | 1996-10-10 | Method and apparatus for pulping with controlled heating to improve delignification and pulp strength |
PCT/US1997/016427 WO1998015687A1 (en) | 1996-10-10 | 1997-09-17 | Method and apparatus for pulping with controlled heating to improve delignification and pulp strength |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9711890A true BR9711890A (pt) | 1999-09-21 |
Family
ID=24929257
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR9711890-7A BR9711890A (pt) | 1996-10-10 | 1997-09-17 | Processo e aparelho para formação de polpa com aquecimento controlado para melhorar a deslignificação e a resistência da polpa. |
Country Status (11)
Country | Link |
---|---|
US (1) | US5736006A (pt) |
JP (1) | JP3560162B2 (pt) |
AU (1) | AU725906B2 (pt) |
BR (1) | BR9711890A (pt) |
CA (1) | CA2265872C (pt) |
ES (1) | ES2195672A1 (pt) |
FI (1) | FI122813B (pt) |
ID (1) | ID19820A (pt) |
SE (1) | SE525751C2 (pt) |
WO (1) | WO1998015687A1 (pt) |
ZA (1) | ZA979000B (pt) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1998059107A1 (en) * | 1997-06-25 | 1998-12-30 | Kvaerner Pulping Ab | Method in connection with the pretreatment of comminuted fibrous material |
US6120646A (en) * | 1998-04-06 | 2000-09-19 | Kvaerner Pulping Ab | Feeding system of feeding a cellulose material |
US6284095B1 (en) | 1999-02-04 | 2001-09-04 | Andritz-Ahlstrom Inc. | Minimization of malodorous gas release from a cellulose pulp mill feed system |
US6368453B1 (en) | 1999-03-18 | 2002-04-09 | Andritz Inc. | Chip feeding to a comminuted cellulosic fibrous material treatment vessel |
US6468006B1 (en) | 1999-05-11 | 2002-10-22 | Andritz, Inc. | High pressure feeder having restriction ramp in high pressure inlet |
US20030231933A1 (en) * | 1999-05-11 | 2003-12-18 | Andritz Inc. | High pressure feeder having smooth pocket in rotor |
CA2318027C (en) * | 1999-09-13 | 2008-07-08 | Andritz-Ahlstrom Inc. | Treating pulp with yield or strength-enhancing additive |
US6451172B1 (en) | 2000-05-18 | 2002-09-17 | Andritz Inc. | In-line drainer enhancements |
US6436233B1 (en) | 2000-05-18 | 2002-08-20 | Andritz Inc. | Feeding cellulose material to a treatment vessel |
SE518538C2 (sv) * | 2001-12-14 | 2002-10-22 | Kvaerner Pulping Tech | Förbehandling av flis med färsk vitlut före behandling med svartlut |
EP1546451A4 (en) * | 2002-09-02 | 2007-09-26 | Gpk Technologies Inc | APPARATUS AND METHOD FOR AUTOMATIC CERIFICATION AND EXTRACTION OF POWDER MATERIAL FROM AGED WAVE CAP |
AU2003291874A1 (en) * | 2003-06-03 | 2005-01-21 | David Tarasenko | Method for producing pulp and lignin |
US7060162B2 (en) * | 2003-08-29 | 2006-06-13 | Jack T. Baker | Chip bin |
SE528571C2 (sv) * | 2005-03-23 | 2006-12-19 | Kvaerner Pulping Tech | Arrangemang för matning av en flissuspension från ett kärl till en kokare |
FI118005B (fi) * | 2005-09-27 | 2007-05-31 | Metso Paper Inc | Syötin |
AT503611B1 (de) * | 2006-05-10 | 2009-05-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
AT503610B1 (de) * | 2006-05-10 | 2012-03-15 | Chemiefaser Lenzing Ag | Verfahren zur herstellung eines zellstoffes |
JP5215706B2 (ja) * | 2007-08-01 | 2013-06-19 | 三井造船株式会社 | 固気2相物質の押し込み装置 |
US8651772B2 (en) * | 2007-12-20 | 2014-02-18 | General Electric Company | Rotary apparatus for use with a gasifier system and methods of using the same |
US20100263813A1 (en) * | 2009-04-21 | 2010-10-21 | Andritz Inc. | Green liquor pretreatment of lignocellulosic material |
US8956505B2 (en) * | 2009-06-11 | 2015-02-17 | Andritz Technology And Asset Management Gmbh | Compact feed system and method for comminuted cellulosic material |
AU2010324993B2 (en) * | 2009-11-24 | 2014-05-22 | Andritz Inc. | Method and system for thin chip digester cooking |
US9115214B2 (en) | 2012-09-24 | 2015-08-25 | Abengoa Bioenergy New Technologies, Llc | Methods for controlling pretreatment of biomass |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3215588A (en) * | 1963-08-15 | 1965-11-02 | Lummus Co | Continuous impregnation, cooking, and washing of fibrous material |
US3619348A (en) * | 1969-09-05 | 1971-11-09 | Defibrator Ab | Process for continuous cellulose cooking |
US3664918A (en) * | 1969-12-09 | 1972-05-23 | Pulp Paper Res Inst | Vapor phase pulping of water saturated lignocellulosic materials |
US4071399A (en) * | 1976-09-01 | 1978-01-31 | Kamyr, Inc. | Apparatus and method for the displacement impregnation of cellulosic chips material |
US4632729A (en) * | 1984-05-01 | 1986-12-30 | Laakso Oliver A | Chip presteaming and air washing |
US4958741A (en) * | 1989-06-14 | 1990-09-25 | Jr Johanson, Inc. | Modular mass-flow bin |
US5053108A (en) * | 1989-06-28 | 1991-10-01 | Kamyr Ab | High sulfidity cook for paper pulp using black liquor sulfonization of steamed chips |
US5183535B1 (en) * | 1990-02-09 | 1996-02-06 | Sunds Defibrator Rauma Oy | Process for preparing kraft pulp using black liquor pretreatment reaction |
US5213662A (en) * | 1991-08-14 | 1993-05-25 | Kamyr, Inc. | Treatment of chips with high temperature black liquor to reduce black liquor viscosity |
US5302247A (en) * | 1992-11-02 | 1994-04-12 | Kamyr, Inc. | Top circulation line cooling for a modified cook digester |
US5413677A (en) * | 1993-04-05 | 1995-05-09 | Kamyr, Inc. | Method for producing chemical pulp from hardwood chips |
US5489363A (en) * | 1993-05-04 | 1996-02-06 | Kamyr, Inc. | Pulping with low dissolved solids for improved pulp strength |
US5500083A (en) * | 1994-02-01 | 1996-03-19 | Kamyr, Inc. | Method of feeding cellulosic material to a digester using a chip bin with one dimensional convergence and side relief |
US5476572A (en) * | 1994-06-16 | 1995-12-19 | Kamyr, Inc. | Chip feeding for a continuous digester |
US5622598A (en) * | 1995-04-25 | 1997-04-22 | Ahlstrom Machinery Inc. | Chip pumping to a digester |
-
1996
- 1996-10-10 US US08/729,022 patent/US5736006A/en not_active Expired - Lifetime
-
1997
- 1997-09-17 JP JP51753798A patent/JP3560162B2/ja not_active Expired - Fee Related
- 1997-09-17 CA CA002265872A patent/CA2265872C/en not_active Expired - Fee Related
- 1997-09-17 AU AU43515/97A patent/AU725906B2/en not_active Ceased
- 1997-09-17 WO PCT/US1997/016427 patent/WO1998015687A1/en not_active Application Discontinuation
- 1997-09-17 ES ES009950018A patent/ES2195672A1/es not_active Withdrawn
- 1997-09-17 BR BR9711890-7A patent/BR9711890A/pt not_active IP Right Cessation
- 1997-10-08 ZA ZA979000A patent/ZA979000B/xx unknown
- 1997-10-10 ID IDP973409A patent/ID19820A/id unknown
-
1999
- 1999-03-31 FI FI990747A patent/FI122813B/fi not_active IP Right Cessation
- 1999-04-09 SE SE9901264A patent/SE525751C2/sv not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
FI990747A0 (fi) | 1999-03-31 |
AU4351597A (en) | 1998-05-05 |
ES2195672A1 (es) | 2003-12-01 |
AU725906B2 (en) | 2000-10-26 |
JP2001527605A (ja) | 2001-12-25 |
CA2265872A1 (en) | 1998-04-16 |
SE9901264D0 (sv) | 1999-04-09 |
ID19820A (id) | 1998-08-06 |
FI990747A (fi) | 1999-06-04 |
ZA979000B (en) | 1998-10-12 |
US5736006A (en) | 1998-04-07 |
CA2265872C (en) | 2005-01-04 |
FI122813B (fi) | 2012-07-13 |
WO1998015687A1 (en) | 1998-04-16 |
SE9901264L (sv) | 1999-06-09 |
SE525751C2 (sv) | 2005-04-19 |
JP3560162B2 (ja) | 2004-09-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B25D | Requested change of name of applicant approved | ||
B25D | Requested change of name of applicant approved | ||
B25G | Requested change of headquarter approved | ||
B07A | Application suspended after technical examination (opinion) [chapter 7.1 patent gazette] | ||
B06A | Patent application procedure suspended [chapter 6.1 patent gazette] | ||
B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
B16A | Patent or certificate of addition of invention granted [chapter 16.1 patent gazette] |
Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 11/03/2008, OBSERVADAS AS CONDICOES LEGAIS. |
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B21F | Lapse acc. art. 78, item iv - on non-payment of the annual fees in time |
Free format text: REFERENTE A 17A ANUIDADE. |
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B24J | Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12) |
Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2272 DE 22-07-2014 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013. |