Understanding the pulping and bleaching performances of eucalyptus woods affected by physiological disturbance
Source abstract
Abstract
The wood quality is a factor of extreme importance when the pulping process is targeting high yield, low cost, and high pulp quality. Thus, wood knowledge is crucial for process optimization. In some northeastern Brazilian eucalyptus plantations, a physiological disturbance caused by water stress has been observed. Up to now, there have been no studies concerning the effects of such disturbances on the wood quality or on the pulping and bleaching process performance. The present work is aimed at understanding the impact of the stress on the production of bleached pulp. The wood quality of two clones (one tolerant to the disturbance and another sensitive), cultivated in sites where the disturbance is present and absent, was evaluated. Kraft pulps of kappa number 20 were produced and bleached by the sequence DHT(EP)D1 to a brightness of 90% ISO, which allowed for assessment of the wood pulpability and bleachability. It was concluded that the disturbance affects the wood quality, and overall it showed a negative impact on the production of bleached eucalyptus kraft pulp, with significant potential economical setbacks.
Source: crossref · Quality: baseline
Research context
OpenAlex topics: Botanical Research and Applications · Lignin and Wood Chemistry · Agricultural and Food Sciences
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (33)
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