Study of catalytic gasification of co-pyrolysis char derived from coal and K-riched biomass
Abstract：The co-pyrolysis chars of coal and straw were prepared in a spout-entrained reactor with different ratios of coal to straw. The CO2 gasification characteristics of co-pyrolysis char was investigated using a thermogravimetric analysis （TGA）. The results show that the gasifi- cation reactivity of copyrolysis chars derived from coal and straw is obviously higher than that of coal char even at 20% blending ratio of straw. The co-pyrolysis char of coal and demineralized straw has the similar reactivity with coal char. The experimental results show that the copyrolysis char prepared at 750 °C has the highest potassium concentration and gasification reactivity. The kinetic analysis reveals that the copyrolysis char shows obviously lower activation energy than coal char.
Keywords：co-pyrolysiscatalytic gasificationpotassiumcoalstraw
Publication Date：2011-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)