燃料化学学报2017，Vol.45Issue(12)：1441-1448,8.
氧气对秸秆热解氮迁移与转化的影响
Influence of oxygen on nitrogen distribution and transformation during straw pyrolysis
摘要
Abstract
To study influence of oxygen on distribution and transformation of fuel-N, pyrolysis experiments of straw were conducted in a two stage fixed bed reactor simulating the run conditions of grate firing. The conversion pathway of fuel-N was depicted by studying types and content of N-containing compounds in tar by GC-MS, and effect of oxygen was analyzed. Compared with inert atmosphere, tar and char yields decrease with introduction of oxygen, which leads to a decrease of N-distribution in tar and char and increase in gas fractions. Protein and amino acids are the main N-containing components in fuel, which initially go through a series of primary reactions, producing primary tar components like amides and amines. Then the primary tar goes through secondary reactions to yield secondary tar components including nitriles and N-heterocyclic compounds. In the presence of oxygen, content of primary tar components like amides and amines decrease significantly, and secondary tar components like nitriles and N-heterocyclic compounds increase.关键词
秸秆/有氧热解/氮迁移/反应路径Key words
straw/oxidative pyrolysis/N-distribution/conversion pathway分类
能源科技引用本文复制引用
汪林正,罗永浩,张睿智,邓睿渠..氧气对秸秆热解氮迁移与转化的影响[J].燃料化学学报,2017,45(12):1441-1448,8.基金项目
The project was supported by STCSM Scientific Project(14JC1403200, 16DZ1202902).上海市科委基础课题(14JC1403200, 16DZ1202902)资助 （14JC1403200, 16DZ1202902）
