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A theoretical investigation on the thermal decomposition of pyridine and the effect of H

Ji Liu, Xinrui Fan, Wei Zhao, Shi-guan Yang, Wenluan Xie, Bin Hu, Qiang Lu

《化学科学与工程前沿（英文）》 2021年第15卷第5期页码 1217-1228 doi: 10.1007/s11705-020-2024-8

摘要： Pyridine is one of the main nitrogen-containing compounds in coal, and its pyrolytic mechanism to generate NO precursors (mainly NH and HCN) remains unclear. In this work, the possible pathways for the pyrolysis of pyridine to form HCN and/or NH were investigated by the density functional theory method, and the effects of H O on pyridine pyrolysis were also investigated. The results show that there are two possible reactions for the initial pyridine pyrolysis, i.e., internal hydrogen transfer and C–H bond homolysis, and that internal hydrogen transfer is more favorable. Nine possible reaction pathways following internal hydrogen transfer are obtained and analyzed. Among these pathways, pyridine prefers to produce HCN instead of NH . The existence of H O has significant effects on the decomposition of pyridine, as it participates in pyridine pyrolysis to form NH rather than HCN as the major product.

关键词： coal pyridine pyrolysis mechanism NO_x precursors DFT

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Insights into simultaneous anammox and denitrification system with short-term pyridine exposure: Process

《环境科学与工程前沿（英文）》 2021年第15卷第6期 doi: 10.1007/s11783-021-1433-3

摘要：

• Short-term effect of the pyridine exposure on the SAD process was investigated.

关键词： Anammox Inhibition Metabolic pathway Microbial community Pyridine SAD

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Promotive effect of pyridine on indole degradation by activated sludge under anoxic conditions

LI Yongmei, GU Guowei, LI Wenshu

《环境科学与工程前沿（英文）》 2007年第1卷第4期页码 493-497 doi: 10.1007/s11783-007-0079-0

摘要： Batch experiments were carried out to investigate the promotive effect of pyridine on indole degradation under denitrifying conditions. The seed sludge was obtained from a local coal-coking wastewater treatment facility and was acc

关键词： wastewater treatment coal-coking wastewater promotive degradation