Pretreatment of switchgrass by ammonia fiber explosion (AFEX)
Pretreatment of switchgrass by ammonia fiber explosion (AFEX)
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DOI：
10.1385/abab:124:1-3:1133
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发表时间：
2005-03-01
影响因子：
3
通讯作者：
Dale, BE
中科院分区：
文献类型：
--
作者：
Alizadeh, H;Teymouri, F;Dale, BE
报道了氨纤维爆炸预处理对柳枝草主要工艺参数的影响。结果表明，柳枝稷的最佳预处理条件为反应器温度接近100℃，氨负荷为1:1 kg: kg干物质，含水量为80%（干重基数[dwb]），停留时间为5 min。afex处理和未处理样品的水解结果分别为93%和16%葡聚糖转化率。优化后的afex处理柳枝稷乙醇产量约为0.2 g乙醇/ g干生物量，是未处理柳枝稷乙醇产量的2.5倍。
The effects of ammonia fiber explosion (AFEX) pretreatment of switch grass using its major process variables are reported. The optimal pretreatment conditions for switchgrass were found to be near 100 degrees C reactor temperature, and ammonia loading of 1:1 kg of ammonia: kg of dry matter with 80% moisture content (dry weight basis [dwb]) at 5 min residence time. Hydrolysis results of AFEX-treated and untreated samples showed 93% vs 16% glucan conversion, respectively. The ethanol yield of optimized AFEX-treated switchgrass was measured to be about 0.2 g ethanol/ g dry biomass, which is 2.5 times more than that of the untreated sample.