作　　者： ; ; ; ;

机构地区： 中国科学院

出　　处： 《太阳能学报》 2013年第10期1835-1840,共6页

摘　　要： 基于吉布斯自由能最小化理论，采用ASPENPLUS软件建立生物油气流床气化模型，分析氧／空气当量系数（ER）、反应压力、汽碳比（S／C）以及气化剂预热温度对气化过程的影响。研究结果表明，生物油气流床氧气气化和空气气化合适的ER分别宜选在0．36及0．49；气化压力为2～4MPa；水蒸气碳比选取0．4比较适合；空气和水蒸气预热温度，分别宜选在1000—1200℃及300％。此外，生物油重质组分具有与生物油接近的冷煤气效率、燃气热值及有效气产率，因此有很大的利用价值。 Based on theory of Gibbs free energy minimization, a bio-oil entrained flow gasification model was developed by ASPEN PLUS. The effects of Equivalence Ratio（ER）, reaction pressure, the molar ratio of Steam to Carbon（ S/C）, and the preheated temperature of gasifying agent on the gasification process were investigated. The conclusions are as follows： The most appropriate ER of bio-oil entrained flow gasification is 0. 36 and 0. 49 for 02 gasification and air gasification, respectively ; the appropriate reaction pressure is ranging between 2-4MPa ; the molar ratio of S/C can modify the system temperature and product composition, while it is recommonded not to be too large, 0. 4 is appropriate; the preheated temperature for air and steam is suitable to choose 1000-1200℃ and 300℃, respectively. Besides, gasification of bio-oil heavy fractions has the similar cold gas efficiency, heating value of gas and effective gas productivity during compared with bio-oil gasification. As a result, bio-oil heavy fractions have a great value in use.

关 键 词： 生物油气化 气流床 热力学模拟 重质组分

领　　域： [动力工程及工程热物理]