双元助剂在甘蔗渣蒸煮中的应用

Application of Dual Cooking Aids in Sugarcane Bagasse Cooking

以蔗渣为原料在碱法蒸煮中加入双元蒸煮助剂,研究与常用单一蒸煮助剂对蒸煮性能的影响。实验结果表明,与常用的加入一种普通的蒽醌类蒸煮助剂相比,蔗渣碱法蒸煮中加入由L-890和L-130组成的双元蒸煮助剂体系的纸浆得率增加6%左右,纸浆卡伯值明显降低,有利于纸浆后续漂白,减轻漂白废水污染负荷;双元蒸煮助剂体系能有效地提高蒸煮效率,减少蒸煮时间;双元蒸煮体系中渗透剂的表面活性基团能加速蒸煮药液对原料的润湿和渗透,进而提高脱木素的均匀性,不仅能提高生产效率,而且节约生产成本。

Using bagasse as raw materials, effects of dual cooking aids and single cooking aids on alkaline cooking were studied. Results showed that the pulp yield of bagasse alkaline cooking with L-890 and L-130 as dual cooking aids system increased by about 6%, compared to that with anthraquinones as single cooking aids. And the pulp kappa number declined significantly, which benefitted the following pulp bleaching by reducing pollution load in the wastewater. Dual cooking aids system could effectively improve the cooking efficiency, and cut down the cooking time. Activity groups of penetrants in dual cooking aids system could accelerate the cooking liquid wetting and penetrating raw materials, which would improve the uniformity of delignification. It could not only increase the production efficiency, but also save the cost of production, therefor, had great value in actual production.