Delignification Kinetics of Soda Pulping of Kenaf
Delignification Kinetics of Soda Pulping of Kenaf
复制标题
红麻碱法制浆的脱木素动力学
DOI：
10.1080/02773819608545811
复制
发表时间：
1996
影响因子：
2
通讯作者：
D. N. Roy
中科院分区：
文献类型：
--
作者：
H. Pande;D. N. Roy
摘要红麻(HiBiscus Cannabihus)是一种可供选择的制浆和制浆的非木材纤维来源。对从美国密西西比州立大学获得的红麻三种不同馏分的脱木素动力学进行了研究。不含萃取物的样品在140°C、155°C和170°C三种不同的温度下与苏打蒸煮液一起煮熟。结果表明，红麻树皮、红麻芯和红麻全叶的活化能分别为68kJ/mole、91kJ/mole和75kJ/mole。这些都大大低于报告的针叶树的值。同时考察了三种样品的脱木素选择性。
ABTRACT Kenaf (Hibiscus Cannabihus) is an alternative, non wood fiber source for pulping and papennaking. Delignification kinetics of extractive free samples from three fractions of kenaf procured from Mississippi State University, U.S.A have been studied. The extractive free samples were cooked at three different temperatures: 140° C, 155° C, and 170° C with soda cooking liquor. The results indicate that the activation energies for the bark, core, and whole kenaf are 68 kJ/mole, 91 kJ/mole, and 75 kJ/mole respectively. These are significantly lower than the reported values for the conifers. The delignification selectivity for the three samples was also investigated.