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Filtering by: Subject Sulphate pulping process -- Florida Remove constraint Subject: Sulphate pulping process -- Florida Degree Level Master's Remove constraint Degree Level: Master's

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Kraft pulping of Douglas-fir with soluble anthraquinone

Creator:

Dutta, Tapas

Abstract:

Several additives have been used in research and on an industrial scale to improve the pulp yield and to increase the rate of delignification. One such additive is 1,4- dihydro- 9,10-dihydroxyanthracene (DDA), also called soluble anthraquinone. This chemical is widely used in Japan and some other countries, especially with the...

Resource Type:

Masters Thesis
Kraft green liquor pulping of Douglas-fir for corrugating medium

Creator:

Fang, Yi-Pygn

Abstract:

Douglas-fir wood chips from Oregon were pulped with kraft green liquor to produce semi-chemical pulps with properties suitable for the manufacture of corrugating medium. The effects of five cooking variables were studied, chemical charge, chip size, bark content of chips, pulping temperature, and liquor sulfidity. The combinations of levels of...

Resource Type:

Masters Thesis
Sintering of fume deposits in kraft recovery boilers

Creator:

Techakijkajorn, Udom

Abstract:

Fume, sub-micron aerosal particles in the combustion gases, have been identified as a cause of extensive plugging and fouling in the heat transfer section of a kraft recovery boiler in kraft pulp mills. After the deposition on the heat transfer surface, fume deposits will undergo the sintering process which causes...

Resource Type:

Masters Thesis

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boiler, an important unit operation in the pulping process. Fume particles in the flue gas tend to form
Fluidized bed granulator for an autocausticization recovery process of sodium in black liquor : experiment and theory

Creator:

Thulstrup, Niels, 1970-

Abstract:

Production of dry particles made of titanium dioxide powder and black liquor is the first step in a newly proposed black liquor treatment process (Frederick et. al., 1992). This work investigates the granulation processes in a fluidized bed granulator of titanium dioxide and black liquor. Experiments are performed in a...

Resource Type:

Masters Thesis

Full Text:

Pulping Process 2 Conventional Black Liquor Treatment 3 The Tomlinson Boiler 3 Other Black Liquor
Determination of the optical constants of ash samples from kraft recovery boilers

Creator:

Samretvanich, Artit

Resource Type:

Masters Thesis

Full Text:

fiber during pulping. The recovery of the inorganic cooking chemicals used in the pulping process and
SO₂ capture and HCl release at Kraft recovery boiler conditions

Creator:

Boonsongsup, Lerssak

Resource Type:

Masters Thesis

Full Text:

Pulping is the process by which wood is reduced to pulp which is the fibrous raw material for papermaking
Catalytic effect of recovery boiler fume compounds on NH₃ oxidation

Creator:

Tangpanyapinit, Vichien

Resource Type:

Masters Thesis

Full Text:

Page 1 INTRODUCTION 1 1.1 Kraft Pulping and Recovery Process 1 1.2 Black Liquor Combustion in

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Academic Affiliation

Chemical Engineering5
Forest Products2

Advisor

Frederick, William James3
Biermann, Christopher J.1
Bublitz, Walter J.1
Iisa, Kristiina1
Jovanovic, Goran1

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 1977 to 1997

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Committee Member

Chaplen, Frank1
Jovanovic, Goran1
Nelson, Peter O.1

Creator

Boonsongsup, Lerssak1
Dutta, Tapas1
Fang, Yi Pygn1
Samretvanich, Artit1
Tangpanyapinit, Vichien1
more Creators »

Date

Date range begin – Date range end

Current results range from 1976 to 1997

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Decade

1990-19995
1980-19891
1970-19791

Degree Field

Chemical Engineering5
Forest Products2

Degree Level

Master's[remove]7

Degree Name

Master of Science (M.S.)7

Language

English [eng]7

Non-Academic Affiliation

Oregon State University. Graduate School7

Peer Reviewed

No7

Resource Type

Masters Thesis7

Rights Statement

Copyright Not Evaluated6
In Copyright1

Subject

Sulphate pulping process4
Sulphate pulping process -- Fume control2
Ammonia -- Oxidation1
Anthraquinones1
Fluidized-bed combustion1
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