[PDF][PDF] Hemicellulose Extraction from South African Eucalyptus grandis using Green Liquor and its Impact on Kraft Pulping Efficiency and Paper Making Properties.

J Johakimu, J Andrew - BioResources, 2013 - bioresources.cnr.ncsu.edu
The feasibility of enhancing the efficiency of the kraft pulping operations while at the same
time evolving the process into a biorefinery, and thus producing hemicelluloses together
with paper products, was studied. Hardwood chips (Eucalyptus grandis) were pre-treated
with green liquor prior to pulp production. At optimal pre-treatment conditions, the pH of the
resulting extract was 7.8, the wood weight loss was 14%, and the hemicellulose extracted
was almost 40 kg/ton of woodchips. In the subsequent kraft pulping, the resulting data …
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