Experimental pulping kinetics of Pinus radiata cultivated in Chile
Source abstract
Abstract
We adapted the Purdue model for kraft pulping kinetics for Pinus radiata wood cultivated in Chile. We cooked P. radiata chips in a batch kraft reactor at three different bulk temperatures (150ºC, 160ºC, and 170ºC) and followed wood concentrations of lignin, cellulose, galactoglucomannans, and arabinoxylans along time for up to 3 h. We compared experimental data against the kinet-ic model and determined new optimal pre-exponential factors for each wood component at each temperature. The corrected kinetic model predicted experimental data fairly well for lignin, yield, cellulose, and galactoglucomannans but was less satisfactory for arabinoxylans. The modified pulping kinetics model is more suitable for describing kraft cooking of local P. radiata species and has been validated through successful simulation of an industrial Kamyr digester.
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Research context
OpenAlex topics: Lignin and Wood Chemistry · Wood Treatment and Properties · Advanced Cellulose Research Studies
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References (17)
Show source-provided references
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