College of Material Engineering, Fujian Agriculture and Forestry University (FAFU), Fuzhou 350002, China.
College of Material Engineering, Fujian Agriculture and Forestry University (FAFU), Fuzhou 350002, China; Key Laboratory of Biofuel, Chinese Academy of Sciences, Qingdao Institute of Bioenergy and Bioprocess Technology, Qingdao 266101, China; Engineering Research Center for Eco-Dyeing & Finishing of Textiles, Ministry of Education, Zhejiang Sci-Tech University, Hangzhou 310018, China.
Bioresour Technol. 2015 Apr;181:183-90. doi: 10.1016/j.biortech.2015.01.055. Epub 2015 Jan 24.
The effectiveness of a biorefinery based on an HWE-Kraft-ECF bleaching process and the end use of pulp was systematically evaluated. Using a P-factor of 198, nearly 30% of xylan-based sugars were recovered. The resulting pulp and paper properties were found to be comparable with the control. A maximum xylan-based sugar recovery of nearly 50% was achieved at a P-factor of 738. Although the strength of this P-factor induced handsheet was lower than that of the control by about 20%, the corresponding pulp was sufficient for dissolving pulp application. However, once the P-factor rose above 1189, hemicellulose sugars were significantly degraded into furans; pulp and paper properties were also deteriorated due to cellulose degradation, lignin deposition and condensation. Thus, considering the different end use of pulps, the performance of an HWE-based biorefinery could be balanced by its HWE severity.
基于 HWE-Kraft-ECF 漂白工艺和纸浆最终用途的生物精炼厂的有效性进行了系统评估。使用 P 因子为 198，近 30%的基于木聚糖的糖得到了回收。结果表明，纸浆和纸张的性能与对照品相当。在 P 因子为 738 时，近 50%的最大基于木聚糖的糖回收率得以实现。尽管这种 P 因子诱导手抄片的强度比对照品低约 20%，但相应的纸浆足以用于溶解浆应用。然而，一旦 P 因子超过 1189，半纤维素糖就会显著降解成呋喃；由于纤维素降解、木质素沉积和缩合，纸浆和纸张的性能也会恶化。因此，考虑到纸浆的不同最终用途，可以通过其 HWE 强度来平衡基于 HWE 的生物精炼厂的性能。
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