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以空气为气化介质,选取松木、玉米秸秆、木屑为气化原料,运用ASPEN PLUS软件并结合Fortran编程对基于自热固定床反应器的生物质气化过程进行了模拟,探讨了空气当量比(ER)和生物质含水量对干气低位热值、气化炉温度、干气组成和气化有效能效率的影响.结果表明,在生物质含水量一定时,随ER增加,干气低位热值降低,气化温度升高,干气中CO含量先增加后减少,H2含量降低,有效能效率先升高后降低;ER一定时,随生物质含水量增加,干气低位热值降低,气化温度先降低后升高,干气中CO含量降低,H2含量先升高后降低;当松木、玉米秸秆、木屑的含水量为20%(?)、ER分别取0.25,0.2和0.15时,最大有效能效率分别为61.67%,60.23%和54.98%.
Using air as the gasification medium, pine, corn stalks and sawdust were selected as raw materials for gasification. ASPEN PLUS software and Fortran programming were used to simulate the biomass gasification process based on autothermal fixed bed reactor. The air equivalence ratio (ER) and biomass water content on the low calorific value of dry gas, gasifier temperature, dry gas composition and gasification effective energy efficiency.The results showed that with the increase of ER, When the ER is constant, with the increase of biomass moisture content, the calorific value of dry gas is decreased, and the lower the calorific value of dry gas, the lower the value of the gasification temperature, the first increase and then decrease the content of CO in dry gas, the lower the H2 content, When the moisture content of pine, corn stalk and sawdust was 20% (?), ER was 0.25, 0.2 and 0.15, respectively, and the content of CO in dry gas decreased, The maximum effective energy efficiency was 61.67%, 60.23% and 54.98% respectively.