In this paper, catalytic gasification experiments of three major biomass components (cellulose, hemicellulose, and lignin), straw, and pine were performed with dolomite and Na2CO3 as catalysts on a small-scale entrained-flow gasifier. We focused on the differences of catalytic gasification characteristics among three major biomass components. Sodium carbonate and dolomite largely positively promoted hemicellulose gasification, significantly improved the gasification efficiency, calorific value of gas, and carbon conversion, and significantly reduced the tar yield. Sodium carbonate showed the optimal catalytic effect. Dolomite positively catalyzed the gasification of cellulose, hemicellulose, lignin, straw, and pine. Sodium carbonate significantly catalyzed the gasification of hemicellulose, but it inhibited the gasification of cellulose, lignin, straw, and pine. Sodium carbonate is suitable to catalyze the gasification of biomass with a high content of hemicellulose. The influences of different catalysts on the catalytic gasification characteristics of cellulose, hemicellulose and lignin were different. Therefore, the selection of biomass gasification catalyst should be based on the components and properties of biomass.

中文翻译：

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纤维素、半纤维素和木质素的催化气化特性

在本文中，以白云石和 Na2CO3 作为催化剂，在小型气流式气化炉上进行了三种主要生物质组分（纤维素、半纤维素和木质素）、秸秆和松木的催化气化实验。我们重点研究了三种主要生物质组分之间催化气化特性的差异。碳酸钠和白云石在很大程度上积极促进了半纤维素气化，显着提高了气化效率、气体热值和碳转化率，并显着降低了焦油收率。碳酸钠显示出最佳的催化效果。白云石正催化纤维素、半纤维素、木质素、稻草和松树的气化。碳酸钠显着催化半纤维素的气化，但抑制纤维素、木质素、稻草和松树。碳酸钠适用于催化高半纤维素含量的生物质气化。不同催化剂对纤维素、半纤维素和木质素的催化气化特性的影响不同。因此，生物质气化催化剂的选择应根据生物质的成分和性质。