Results 71 to 80 of about 495 (117)
High sulphidity pulping process : An alternative to the kraft pulping process
Kraftmassaprocessen är den dominerade massaframställningen bestående av 90% av världens kemiska jungfrumassa. Denna process är omfattande och förbättringar pågår ständigt, särskilt med tanke på den stora kemikalieåtervinningen [1]. 1966 publicerade G.H. Tomlinson II ett patent där en vitlut av 100% sulfiditet användes, alltså endast natriumsulfid (Na2S)
openaire +1 more source
Resin Profile in a Bleached Kraft Pulp Process
, 2012 Målet med projektet var att utreda hur mängden och sammansättningen av hartser varierade i den blekta björkmassan under tillverkningsprocessen på pappersbruket SCA Packaging Munksund. Att göra en litteraturstudie för att ta reda på vilka metoder som kan användas för att förbättra avhartsningen var en annan del av målet.
openaire +1 more source
BioResourcesCurrent carbon footprint tools for the pulp and paper industry focus on conventional wood fibers and overlook alternative biomass and soil organic carbon (SOC) sequestration.
Rhonald Ortega +8 more
doaj
Modelling and simulation of biorefinery processes Case study: Kraft pulping process
openaire +1 more source
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Integration of a cogeneration unit into a kraft pulping process
Applied Thermal Engineering, 2010The integration of cogeneration with other measures that impact the power production capacity in a Canadian Kraft pulping mill is studied. Those measures are removal of pressure reduction valves, adjustment of the steam pressure level, biomass boiler capacity, and reduction in process energy demand.
Behnam Mostajeran Goortani +2 more
openaire +3 more sources
Journal of Agricultural and Food Chemistry, 2022
This paper presents comments on the recently published article by Lahtinen et al., showing results about study the chemical structure of insoluble residual lignin, the presence of fatty acids in kraft lignin, and the origin of the secoisolariciresinol fragment. The analytical procedures used in the study seem to be reliable. However, in my opinion, the
openaire +2 more sources
This paper presents comments on the recently published article by Lahtinen et al., showing results about study the chemical structure of insoluble residual lignin, the presence of fatty acids in kraft lignin, and the origin of the secoisolariciresinol fragment. The analytical procedures used in the study seem to be reliable. However, in my opinion, the
openaire +2 more sources
Kinetic Model for Kraft Pulping Process
Industrial & Engineering Chemistry Research, 2005A new mechanism is proposed for the heterogeneous delignification reaction during the Kraft pulping process. The mechanism consists of three key kinetic steps: (1) adsorption of hydroxide and hydrosulfide ions on lignin; (2) surface reaction on the solid surface to produce degraded lignin products; and (3) desorption of degradation products from the ...
Ling Yang, Shijie Liu
openaire +1 more source
Hindrance to nanofibrillation of undried pulp produced by the kraft cooking process
Carbohydrate Polymers, 2022Kraft pulp is the most common and economically advantageous raw material for making cellulose nanofibers (CNFs). However, when kraft pulp is subjected to mechanical fibrillation, unfibrillated pulp always remains, even though the pulp is undried. In this study, the effect of the kraft pulping process on the fibrillation of undried pulp was studied. The
Ting-Hsuan, Ku +4 more
openaire +2 more sources
Control Strategy Scheme for the Prehydrolysis Kraft Process
Computer Aided Chemical Engineering, 2018Abstract This paper presents a control strategy scheme for the prehydrolysis stage in the prehydrolysis kraft process. The key element of the proposed control strategy is a softsensor, which estimates the rate of the unobservable reactions based on a physicochemical dynamic model of the process.
Sixta, Herbert +3 more
openaire +2 more sources
Odor generation in the kraft process
Journal of Chemical Education, 1975Considers the kraft process, sources of odors in the process, and the chemistry of the formation of those odors.
openaire +1 more source