• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Wood Chemistry and Technology >NaBH_4 Pretreatment in Bioethanol Production of Corn Stalks
【24h】

NaBH_4 Pretreatment in Bioethanol Production of Corn Stalks

机译：NaBH_4在玉米秸秆生物乙醇生产中的预处理

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Corn stalks, which are an abundant agricultural waste product in Turkey, have a high carbohydrate structural content and could be a valuable raw material for bioethanol production. In this study, stalks with crystalline cellulose and complex lignin and hemicellulose distribution in their structure were first steam-exploded and then chemically treated to achieve efficient hydrolysis. The conventional chemicals sodium hydroxide (NaOH), sulfuric acid (H_2SO_4), hydrogen peroxide (H_2O_2), and an alternative chemical, sodium borohydrate (NaBH4), were utilized in the chemical treatment procedure. Results showed that the samples treated with NaOH (83.9%) and NaBH4 (82.9%) gave higher glucan conversion in enzymatic hydrolysis compared to those treated with H_2O_2 (74.5%) and H_2SO_4 (56.6%). The highest ethanol yield from untreated stalks (97.4 g/kg) was obtained when the stalks were pretreated with 4% NaBH_4 for 90 min; the theoretical ethanol yield was found to be 72.5%.
机译：玉米秸秆是土耳其丰富的农业废品，具有较高的碳水化合物结构含量，可能是生产生物乙醇的宝贵原料。在这项研究中，首先将具有结晶纤维素，复杂木质素和半纤维素分布结构的秸秆进行蒸汽爆破，然后进行化学处理以实现有效的水解。在化学处理过程中，使用了常规化学氢氧化钠（NaOH），硫酸（H_2SO_4），过氧化氢（H_2O_2）和替代化学硼氢化钠（NaBH4）。结果表明，与用H_2O_2（74.5％）和H_2SO_4（56.6％）处理的样品相比，用NaOH（83.9％）和NaBH4（82.9％）处理的样品在酶促水解中具有更高的葡聚糖转化率。当用4％NaBH_4预处理秸秆90分钟时，未处理秸秆的乙醇产量最高（97.4 g / kg）；发现理论乙醇产率为72.5％。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号