バイオエタノール生産プロセスとしてのクラフトおよび酸性サルファイト蒸解法の評価

DOI Web Site 被引用文献6件 参考文献43件

書誌事項

タイトル別名
  • Estimation of Kraft and Acid Sulfite Cooking Methods as Processes of Bioethanol Production
  • バイオエタノール セイサン プロセス ト シテ ノ クラフト オヨビ サンセイ サルファイト ジョウカイホウ ノ ヒョウカ ガン エイゴブン

この論文をさがす

抄録

We estimated the carbon content of softwood black liquor during kraft cooking to calculate its higher heating value and compared it with that of hardwood liquor. The bioenergy obtained from the black liquor of softwood chips consisting of Japanese red pine (Pinus densiflora) and Japanese cedar (Cryptomeria japonica) was 12.4 MJ⁄kg wood, which was approximately 3 MJ⁄kg wood higher than that of acacia (Acacia mearnsii) wood.<BR>For Japanese larch sapwood, acid sulfite cooking had a better cooking response than alkaline cooking. The resolution ratios of the acid sulfite pulps obtained by enzymatic treatment were higher than those of the alkaline pulps, and were independent of the kappa numbers. The glucose yield from an acid sulfite pulp with a kappa number of 64.3 was much better than those from alkaline pulps. When acid sulfite cooking was carried out for a longer time at a low pH, the cellulose in the pulp degraded into spent sulfite liquor (SSL) . Monosaccharide, mainly consisting of glucose (7.2 %on wood weight) , were obtained from the SSL. Therefore, it was shown that acid sulfite cooking was a more appropriate method for easily producing glucose and ethanol from both pulps and SSL than alkaline cooking.

収録刊行物

  • 紙パ技協誌

    紙パ技協誌 64 (4), 420-436, 2010

    紙パルプ技術協会

被引用文献 (6)*注記

もっと見る

参考文献 (43)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ