Processing of the post-extraction residue of needles by fast pyrolysis

Needles are mainly used to obtain extractive substances. In this case, after extraction, a post-extraction residue is formed, which has a narrow range of applications and, consequently, disposal problems. The purpose of the work is the extraction of pine needles with various solvents, rapid pyrolysis of the post-extraction residue of woody greenery with the determination of the material balance and operating parameters of the pyrolysis process and the study of the composition of the resulting pyrolysis liquid.