Selecting appropriate cellulose morphology to enhance the nitrogen content of nitrocellulose.

This study aims to determine the effect of cellulose morphology on enhancing the nitration of cellulose to achieve nitrocellulose with a high nitrogen content. Cotton linter was employed as a point of reference, and and coffee pulp cellulose were used for comparison. and coffee pulp cellulose were used considering their distinctive morphological characteristics compared to cotton linter.

Binderless, All-Lignin Briquette from Black Liquor Waste: Isolation, Purification, and Characterization.

Lignin isolated from black liquor waste was studied in this research to be utilized as binderless, all-lignin briquette, with a calorific value in the range of 5670-5876 kcal/kg. Isolation of lignin from black liquor was conducted using the acid precipitation method. Sulfuric acid, citric acid, and acetic acid were used to maintain the pH level, which varied from 5 to 2 for the precipitation process.