Achnatherum inebrians straw as a potential raw material for pulp and paper production

作者：Li Haichao^*; Sun Huizhen; He Zhibin

来源：Journal of Cleaner Production, 2015, 101: 193-196.

DOI：10.1016/j.jclepro.2015.03.061

• Achnatherum inebrians
• Pulping
• Kraft process
• Soda process
• Soda-AQ process

Cellulosic pulps were prepared from Achnatherum inebrians straw using soda, soda anthraquinone (soda-AQ), and Kraft pulping processes. The main chemical compositions in A. inebrians straw are 70.5% holocellulose, 41.6% alpha-cellulose, and 18.2% lignin, similar to those in other non-wood materials. The conditions of a liquid/solid ratio of 4.5:1, a time-to-maximum temperature of 100 min, a maximum temperature of 165 degrees C and a time-at-maximum temperature of 40 min were used in all pulping processes. The results showed that the pulp yield was 35.12-37.01%, the kappa number was 13.23-17.67, drainage index was 19-21 degrees SR and the viscosity of pulps was 846-898 mL/g. Tear index, tensile index, burst index and brightness of the paper were 5.27-5.83 mN m(2)/g, 16.58-18.11 mN/g, 1.76-2.37 kPa m(2)/g and 40.7-43.1% ISO respectively. It is indicated that A. inebrians straw can be used as an alternative raw material for pulping.

• 出版日期2015-8-15
• 单位东北林业大学; 青海民族大学