The nitrogen-rich pyrolysis is a significant technique to improve the utilization and value addition of biomass. The bio-oil derived from the biomass nitrogen-rich pyrolysis is abundant in high-value nitrogenous compounds. Carbamide-pretreated pine powder was used to produce bio-oil through fast pyrolysis in this paper. Effects of pyrolysis temperature and the concentration of carbamide solution on the product distribution and the content of important compounds (e.g., phenols, amines, indoles, pyrroles) in pine powder–derived bio-oil were investigated. The results showed that the bio-char yield decreased as the concentration of carbamide solution increased. The highest bio-oil yield (51.8%) appeared at a temperature of 400 °C and an impregnated carbamide solution concentration of 10%. The contents of acids, ketones, and aldehydes in the bio-oil obtained by carbamide-impregnated pine powder significantly decreased while the content of phenols observably increased. Compared with the bio-oil derived from raw pine powder, there were various nitrogenous compounds generated in the bio-oil produced by carbamide-impregnated pine powder. As the concentration of carbamide solution increased, the varieties of nitrogenous compounds increased.

富氮热解是提高生物质利用率和增值的一项重要技术。来自生物质富氮热解的生物油富含高价值的含氮化合物。本文采用氨基甲酰胺预处理的松木粉通过快速热解生产生物油。研究了热解温度和尿素溶液浓度对松木粉衍生生物油中产物分布和重要化合物（例如酚，胺，吲哚，吡咯）的含量的影响。结果表明，随着尿素溶液浓度的增加，生物炭产量下降。在400°C的温度和10％的浸渍尿素溶液浓度下，最高的生物油收率（51.8％）出现了。酸，酮，尿素浸渍松木粉制得的生物油中的醛和醛明显减少，而酚的含量明显增加。与从生松粉中得到的生物油相比，在尿素浸渍的松粉中产生的生物油中会产生多种含氮化合物。随着尿素溶液浓度的增加，含氮化合物的种类增加。