煤炭地下气化的零碳排放能量转换技术研究

Research on Energy Conversion Technology of Zero Carbon Emission from Underground Coal Gasification

利用煤炭地下原位气化技术,将煤炭地下气化与二氧化碳捕集利用及封存(CCUS)相结合,可实现“氢能利用零碳排放”和“能量回收零碳排放”。相关研究结果表明,在理想的热力学条件下,氢能利用零碳排放的碳能量利用率可达91.5%,能量回收零碳排放的碳能量利用率可达92.7%。该技术能够与石油石化企业现有的油气产业链、氢能产业链、石化产业链相融合,协同发展,打造未来能源技术应用场景,加速形成零碳排放的未来能源产业。

Using the underground in-situ gasification technology of coal,under the requirements of peak carbon dioxide emissions and carbon neutralization,the combination of underground gasification and carbon dioxide capture,utilization and storage(CCUS)could realize zero carbon emission from hydrogen energy utilization and zero carbon emission from energy recovery.The research results showed that under ideal thermodynamic conditions,the carbon energy utilization ratio of hydrogen energy with zero carbon emissions could reach 91.5%,and that of energy recovery with zero carbon emissions could reach 92.7%.It could realize the integration and coordinated development with the existing oil and gas industry chain,hydrogen energy industry chain and petrochemical industry chain of petroleum and petrochemical enterprises,create future energy technology application scenarios,and accelerate the formation of zero carbon emission future energy industry.