[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

NOVEL, 2018 - Google Patents

MEASUREMENT TECHNOLOGIES COMPLEMENTED WITH ADVANCED PROCESS CONTROL

NOVEL, 2018

View PDF
Document ID
4401834392556674646
Author
NOVEL B
Publication year
Publication venue
O PAPEL

External Links

Snippet

Unit operations in a fiberline are designed to selectively remove lignin to achieve a pulp with the desired brightness, cleanliness and strength. Pulp being a commodity, there is always a pressure to reduce costs. The primary focus is generally to reduce wood costs but efforts to …
Continue reading at www.eucalyptus.com.br (PDF) (other versions)

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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching; Apparatus therefor
    • D21C9/12—Bleaching; Apparatus therefor with halogens or halogen-containing compounds
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching; Apparatus therefor
    • D21C9/147—Bleaching; Apparatus therefor with oxygen or its allotropic modifications
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching; Apparatus therefor
    • D21C9/1026—Other features in bleaching 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • D21G9/0009—Paper-making control systems
    • 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
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/02—Washing; Displacing cooking or pulp-treating liquors contained in the pulp by fluids, e.g. wash water or other pulp-treating agents
    • 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
    • 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
    • D21C1/06—Pretreatment of the finely-divided materials before digesting with alkaline reacting compounds

Similar Documents

Publication Publication Date Title
US7085615B2 (en) Dynamic on-line optimization of production processes
US8594828B2 (en) System and method for optimizing a paper manufacturing process
US6069688A (en) Method for producing continuous in-like kappa measurements for papermaking pulps
Castro et al. A pulp mill benchmark problem for control: application of plantwide control design
CA2564932C (en) System and method for controlling a thermo-mechanical wood pulp refiner
NOVEL MEASUREMENT TECHNOLOGIES COMPLEMENTED WITH ADVANCED PROCESS CONTROL
KR20000062824A (en) Method of carrying out an optimized fiber or paper manufacturing process
CA2814625A1 (en) Method and apparatus for stabilizing production of pulp from wood chips
Brewster et al. Computer control in pulp and paper 1961-1969
Rahman et al. An approach for feedforward model predictive control for pulp and paper applications: Challenges and the way forward
US20030070778A1 (en) Method and apparatus for adjusting chemical dosage of pulp processing stage
Flisberg et al. Billerud optimizes its bleaching process using online optimization
Carlberg The autonomous mill: Utilizing digital twins to optimize the pulp & paper mill of the future
Tervaskanto et al. Refiner quality control in a CTMP plant
US5953111A (en) Continuous in-line kappa measurement system
Badwe et al. Continuous digester optimization using advanced process control
Dahlquist Process simulation for pulp and paper industries: Current practice and future trend
Flisberg et al. Optimized on-line process control of bleaching operations with OptCab
Cunningham Adaptive control applications in pulp and paper
Ahvenlampi et al. Energy efficient control techniques in continuous cooking application
BROGDON Using bleaching stage models for benchmarking softwood ECF bleach plants
EP0919889A1 (en) Modelling, simulation and optimisation of continuous Kamyr digester systems
Posio et al. Integrated Control System for Peroxide Bleaching of Pulps
Devillers The importance of consistency
Zhang et al. Improved Model for Brightness Optimization Control in the First (C95/D5) Bleaching Stage