【摘要】 基于文献数据,研究了木屑在800℃,900℃,1 000℃,1 100℃和1 200℃时氧气气化和水蒸汽气化所产气化气的能值、火用值、能量效率和火用效率,结果表明:氧气气化所得气化气体的能值、火用值、能量效率和火用效率分别为9 433.49～12 972.63 kJ.kg-1,8 382.97～11 166.42 kJ.kg-1,40.30～49.77%和34.76～42.21%;水蒸汽气化所得气化气体的能值、火用值、能量效率和火用效率分别为14 323.61～19 608.99 kJ.kg-1,12 814.82～16 400.45 kJ.kg-1,54.70～66.28%和47.58～56.04%。水蒸汽气化所得气化气体呈现出较高的能值、火用值、能量效率和火用效率,从而表现为一种更好的气化方式。更多还原

【Abstract】 Based on the experimenta data of a reference where sawdust gasified with oxygen or steam at 800 ℃,900 ℃,1 000 ℃,1 100 ℃ and 1 200 ℃,respectively,the energy value,exergy value,energy efficiency and exergy efficency of product gas were studied in this paper.The results show that the energy value,exergy value,energy efficiency and exergy efficency of product gas from biomass oxygen gasifcation are 9 433.49~12 972.63 kJ·kg-1,8 382.97~11 166.42 kJ·kg-1,40.30~49.77% and 34.76~42.21%,respectively.The energy value,exergy value,energy efficiency and exergy efficency of product gas from biomass steam gasificaon are 14 323.61~19 608.99 kJ·kg-1,12 814.82~16 400.45 kJ·kg-1,54.70~66.28% and 47.58~56.04%,respectively.Steam gasification generates higher energy value,exergy value,energy efficiency and exergy efficency than oxygen gasifcation,thereby showing a better gasification technology.更多还原