在CO2-H2 O-O2环境中对粉碎煤进行排气氧气化
Viktor Alexandrovich Kuznetsov1, Daria Mikhailovna Bozheeva2, Andrey Viktorovich Minakov1
1Siberian Federal University, 79 Svobodny Ave, Krasnoyarsk, 660041, Russia.
Environmental science and pollution research international
|October 23, 2023
概括
在CO2-H2O-O2环境中氧气化煤提供纯二氧化碳捕获用于储存. 在这种清洁能源技术中,优化氧气水平和减少过剩氧气是提高效率和最大限度地减少可燃损失的关键.
科学领域:
- 能源工程 能源工程
- 化学工程是化学工程的重要组成部分.
- 环境科学 环境科学
背景情况:
- 在没有的CO2-H2O-O2环境中燃烧/气化煤炭是一种有前途的碳捕获技术.
- 这一过程有助于捕获近乎纯净的二氧化碳,用于随后的储存,从而减少碳足迹.
研究的目的:
- 在CO2-H2O-O2环境中对粉碎煤的带流氧气化进行数值研究.
- 开发和验证氧燃料气化工艺的数值方法.
- 分析关键参数对气化性能和合成气组成的影响.
主要方法:
- 数字化研究带走的流量氧气化.
- 开发和测试氧燃料气化的数值方法.
- 参数研究包括吸收系数,多余氧比率,氧度和水分含量.
主要成果:
- 增加氧气度稳定了粉煤点火和燃烧在低过剩氧气比率.
- 过剩的氧气比率从0.43降低到0.33显著增加可燃性损失 (0.15%至45%).
- 高燃料转化产生合成气 (9.26 MJ/m3),由CO (40.3%),H2 (32.4%) 和CO2 (25.5%的干体积) 组成. ) 的情况.
结论:
- 该研究为优化煤炭氧气化提供了洞察力,以提高效率和二氧化碳捕获.
- 参数控制,特别是过量氧比率和氧度,对于工艺性能至关重要.
- 开发的数值方法对于模拟和分析氧气化过程是有效的.
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