内在碱金属钠对稻秆与塑料PE共气化产气特性的影响

The effect of straw alkali metal on the gas production behavior during biomass derived fuel gasification

为研究稻秆内在碱金属钠对稻秆与塑料PE共气化产气规律的影响,文章选取稻秆和塑料PE为研究对象,通过水洗和浸渍法对稻秆进行预处理,在研究温度和PE含量对气化产气影响的基础上重点研究了二者共气化过程中钠对气化产气的影响。结果表明:随着钠含量的增加,H2的最大瞬时产量表现出增多的趋势,钠含量为0.11%,0.49%,0.97%时H2的体积分数对应为4.5%,8.5%,9.5%;钠含量由0.11%增至0.97%时,总产气组分中H2和CO的体积分数分别提高了1.64倍和1.35倍,热值和碳转化率分别提高了1.8倍和2.3倍。

In order to investigate the effect of straw alkali metal on the gas production behavior during biomass derived fuel, the raw materials were chosen as plastic and rice straw, alkali metals in which were removed by washing and then different amount of sodium were added by wet impregnation method. This work focused on the effect of sodium on the gas production behavior based on the study of effects of temperature and PE content. The results showed that the maximum instantaneous yield of H2 increased with the increase of sodium content. The fraction of H2was4.5%, 8.5%, and 9.5% when the content of sodium was 0.11%, 0.49%, 0.97%, respectively. When the content of sodium increased from 0.11% to 0.97%, the composition of H2 and CO in total yield increased by 1.64 times and 1.35 times. Meanwhile, the calorific value and carbon conversion rate increased by 1.8 times and 2.3 times.