Home » Volume 32, 2017 » Issue No. 4
Suitable approach using agricultural residues for pulp and paper manufacturing
Haroon A.M Saeed, Yu Liu, Lucian A. Lucia and Honglei Chen
The chemical compositions, fibre dimensions, elemental analysis and paper characteristics of sesame, karkadeh and okra stalks were studied in this work. It was found that the α-cellulose content of karkadeh, sesame and okra stalks were 45.8, 42.3 and 37.9%, respectively. Klason lignin was found to be the highest in okra 21.4% while it was 20.8 and 19.3% in sesame and karkadeh, respectively. Soda and soda-anthraquinone (AQ) pulping as sulfur-free processes were applied on these raw materials for producing pulp fibers. The results showed that a lower kappa number, higher screened pulp yield, and better paper handsheet properties were obtained for the pulp produced via soda-AQ pulping than the soda process. The soda-AQ and soda pulping of karkadeh generated pulp with the highest yields of 46.6% and 43.5% and kappa numbers of 18.0 and 19.4, respectively. Papers produced from karkadeh pulp showed the highest brightness of 77.64 and 75.50%, tensile index of 52.3 and 51.7 N.m/g, tear index of 4.6 and 5.5 mNm2/g and burst index of 3.9 and 3.5 KPa m2/g for soda-AQ and soda pulp, respectively. Furthermore, the morphological analysis and chemical compositions of karkadeh, sesame and okra stalks showed their suitability for pulp and paper production.
Agricultural residues, Karkadeh, Okra, Pulp and paper, Sesame
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Nordic Pulp & Paper Research Journal (NPPRJ) is an international scientific magazine covering science and technology for the areas of wood or bio-mass constituents, pulp and paper and including new fiber-based materials, recovery and by-products from pulping processes, bio-refining and energy issues. Articles meeting required scientific standards are accepted from any continent.
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ISSN: 0283-2631