Chlorine-Free Bleaching of Kraft Pulp from Oil Palm Empty Fruit Bunches

JARQ : Japan Agricultural Research Quarterly
ISSN 00213551
書誌レコードID(総合目録DB) AA0068709X
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38-04-10.pdf183.71 KB

Chlorine-free bleaching was carried out on kraft pulp from oil palm empty fruit bunches (EFB) with an oxygen (O2) - acid (H2SO4) - ozone (O3) - hydrogen peroxide (H2O2) bleaching sequence. The κ-number (= an indicator of lignin content) of the pulp was reduced considerably after these processes indicating that most of the lignin present in the pulp can be removed using this chlorine-free sequence. Handsheets of both bleached and unbleached EFB pulp were prepared and their paper properties were determined. Brightness, a measure of the whiteness of paper, was achieved to ca. 75% for the bleached EFB pulp, showing a possibility of achieving 80% of brightness by chlorine-free bleaching. Paper strengths as indicated by tensile, tear and burst indices as well as stretch did not show significant differences between before and after bleaching. It is notable that these results were obtained despite a large decrease in viscosity by the bleaching process. Moreover, the EFB bleached pulp showed comparable strengths to hardwood pulps, indicating that EFB has the potential as a raw material for chemical pulp production using chlorine-free bleaching sequences.

刊行年月日
作成者 TANAKA Ryohei WAN ROSLI W. D. MAGARA Kengo IKEDA Tsutomu HOSOYA Shuji
著者キーワード

EFB

oxygen

ozone

brightness

paper strengths

公開者 Japan International Research Center for Agricultural Sciences
オンライン掲載日
国立情報学研究所メタデータ主題語彙集(資源タイプ) Journal Article
38
4
開始ページ 275
終了ページ 279
DOI 10.6090/jarq.38.275
権利 Japan International Research Center for Agricultural Sciences
言語 eng

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