Utilization of cellulose in tobacco (Nicotiana tobacum) stalks for nitrocellulose production

Heliyon

卷:7

Lawrencia Tshuma¹  Emmanuel Mawere²  Langa Bright Moyo³  Ralph Muvhiiwa⁴ 

[1] Corresponding author.;

[2] Institute for the Development of Energy for African Sustainability, College of Science, Engineering and Technology, University of South Africa (UNISA), C/o Christiaan de Wet &

[3] Pioneer Avenue, Florida Campus 1710, Johannesburg, South Africa;

[4] Keqiao Green Energy Materials Joint Laboratory, Zhijiang College of Zhejiang University of Technology, Shaoxing, 312030, China;

关键词: Nitrocellulose;    Tobacco stalks;    Soda pulping;    Lignin;    Calcium hypochlorite;   

DOI  :  

来源: DOAJ

【 摘 要 】

This research explains the conversion of waste tobacco stalks into nitrocellulose to try to recover as much chemical potential contained in the biomass material as possible. Simple pioneering experiments were conducted using pulping tobacco stalks with a moisture content of 10.17 wt% and the soda pulping method being applied to produce cellulose pulp. The cellulose pulp was bleached using calcium hypochlorite to produce a dry white lignin-free pulp, which was subjected to nitration. The mixture used was 67% nitric acid and 98% sulphuric acid, and the acid ratio was varied between 3:7 and 7:3 v/v. Nitration time was varied between 5 and 25 min. This process produced nitrocellulose with all the various conditions. The nitrocellulose obtained with nitrogen content between 11 – 11.5% v/v was characterized using its solubility in acetone. An optimum nitrating mixture of 1:1 v/v with a nitration time of 5 min was used to produce nitrocellulose from tobacco stalks using soda pulping. The results show a great potential for tobacco farming countries to reduce their nitrocellulose import bill using this process.

【 授权许可】

Unknown