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Filtering by: Subject Sulphate pulping process Remove constraint Subject: Sulphate pulping process Resource Type Dissertation Remove constraint Resource Type: Dissertation

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Chemical equilibrium of nonprocess elements in the kraft recovery cycle

Creator:

Streisel, Robert C.

Abstract:

Non-process elements are present in all kraft recovery systems. Non-process elements are defined as those elements which are not essential to the chemical process, i.e., are neither active pulping chemicals (e.g., NaOH and Na₂S in the kraft process), nor compounds present as a result of incomplete conversion of makeup chemicals...

Resource Type:

Dissertation
Kinetic and equilibrium analysis of metal ion adsorption onto bleached and unbleached kraft pulps

Creator:

Yantasee, Wassana

Abstract:

Most metal ions have negative impacts on pulp mill operations. The concentrations of metal ions on pulp fibers and in washwaters rise significantly with increased wastewater recycling. The development of technology to remove these metal ions requires an understanding of how metal ions are bound to pulp components. It is...

Resource Type:

Dissertation

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the pulping and bleaching process [34]. The porosity and pore distribution of wood pulp fibers has
Parallel simplex algorithms and loop spreading

Creator:

Wu, Youfeng

Abstract:

Parallel solutions for two classes of linear programs are presented. First we parallelized the two-phase revised simplex algorithm and showed that it is possible to get linear improvement in performance. The simplex algorithm is the best known algorithm for solving linear programs, and we claim our result is the best...

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Dissertation

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. Parallel Processor Balance Through Loop Spreading 4.1. Introduction 88 4.2. Data Dependence and Process
Interactions between dissolved wood organic chemicals and nonprocess elements in chemical pulping processes

Creator:

Wilson, Kenneth P.

Abstract:

This work is part of a larger project dealing with nonprocess element (NPE) behaviour in chemical pulping processes. Nonprocess elements are defined as those elements which are not essential to the chemical process, i.e. are neither active pulping chemicals (e.g., NaOH and Na2S in the kraft process), nor compounds present...

Resource Type:

Dissertation

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Academic Affiliation

Forest Products2
Chemical Engineering1
Computer Science1

Advisor

Frederick, W. J.1
Laver, Murray L.1
Lewis, Ted G.1
Rorrer, Gregory L.1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1988 to 2001

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Committee Member

Birkes, Dave1
Bose, Bella1
Cook, Curtis1
Jovanovic, Goran1
Laver, Murray L.1
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Creator

Streisel, Robert C.1
Wilson, Kenneth P.1
Wu, Youfeng1
Yantasee, Wassana1

Date

Date range begin – Date range end

Current results range from 1987 to 2001

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Decade

2000-20091
1980-19893

Degree Field

Forest Products2
Chemical Engineering1
Computer Science1

Degree Level

Doctoral4

Degree Name

Doctor of Philosophy (Ph.D.)4

Language

English [eng]4

Non-Academic Affiliation

Oregon State University. Graduate School4

Peer Reviewed

No3

Resource Type

Dissertation[remove]4

Rights Statement

Copyright Not Evaluated4

Subject

Sulphate pulping process2
Aluminum silicates -- Solubility1
Evaporators1
Heat exchangers -- Fouling1
Metal ions -- Absorption and adsorption1
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