Results 171 to 180 of about 10,608,979 (207)

Role of surfactants in kraft pulping processes

2010
Des tests en laboratoire ont été conduits, grâce à l'instrument de pénétration développé à l'université McGill, afin de déterminer les surfactants capables d'améliorer la pénétration de la liqueur kraft dans le duramen (région centrale du bois) de l'Aspen.
openaire   +1 more source

Effects Of Ozone On Kraft Process Pulp Mill Effluent

Ozone: Science & Engineering, 1992
Abstract Effluent from a kraft process pulp mill was studied in a batch reactor for ozone doses between 50 and 200 mg O3/L to identify the relative suitability of ozone application locations in the treatment process and see the improvements in biotreatability of wastewaters from a kraft process pulp mill.
A. Mohammed, D. W. Smith
openaire   +1 more source

Simulation of the Condensate Treatment Process in a Kraft Pulp Mill

Chemical Engineering & Technology, 2001
A simulation program has been developed and used to study the condensate treatment process in a kraft pulp mill consisting of a stripper, a methanol column and a decanter. The simulations require rigorous models for vapor-liquid and liquid-liquid equilibrium calculations. The Wilson equation and the NRTL equation (non random two liquids) have been used
J. Olsson, G. Zacchi
openaire   +1 more source

Formation of organochlorine compounds in kraft pulp bleaching processes

Chemosphere, 1996
Abstract The most abundant volatile organochlorine compounds (VOCCs), trichloroacetic and dichloroacetic acids and AOX, were determined in bleaching effluent and waste water from three kraft pulp mills during ClO2 bleaching. 0.6–7.7 g of VOCCs per ton bleached pulp were formed, the most abundant being chloroform and dichloroacetic acid methyl ester ...
S. Juuti, T. Vartiainen, J. Ruuskanen
openaire   +1 more source

Ozonation of kraft pulp mill effluents: process dynamics

Journal of Environmental Engineering and Science, 2002
Pulp mill wastewater discharged from an aerated stabilization basin (ASB) of a kraft pulp mill was ozonated in an extra-coarse-bubble diffuser contactor. The ozonation process is dynamic. Therefore, modeling the reduction efficiencies of contaminants present in the pulp mill effluent and the ozone gas absorption process became more complex than the ...
M G El-Din, Daniel W Smith
openaire   +1 more source

Corrosion Rate Monitoring in Kraft Pulping Process Liquors

CORROSION 1986, 1986
Abstract Corrosion monitoring in alkaline sulfide kraft pulping liquors has been performed by means of the linear polarization resistance and electrical resistance methods. Corrosion rates obtained in real and simulated white liquors are compared with weight loss results.
D. C. Crowe, R. A. Yeske
openaire   +1 more source

Kraft Pulp Process Inspection Service by Andritz

JAPAN TAPPI JOURNAL, 2023
Ryo Yoshida, Kanji Hagiwara
openaire   +1 more source

Three concepts for intensification of nordic kraft pulp processes

2014
Process intensification of Nordic kraft pulp mill can be achieved by applying proposed concepts. Sulphur lean concept enables production of value-added sulphurless by-products from pulp mill and efficiency of pulp mill if gasification of black liquor is applied.
Kangas, Petteri, Kaijaluoto, Sakari, Määttänen, Marjo   +2 more
openaire   +1 more source

Novel biorefinery-Integrated-Kraft-pulping network for sustainable development

Chemical Engineering and Processing: Process Intensification, 2021
Amata Anantpinijwatna, Amornchai Arpornwichanop, Suttichai Assabumrungrat   +2 more
exaly  

Pitch Control Agent for the Kraft Pulping Process

JAPAN TAPPI JOURNAL, 2023
openaire   +1 more source