...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Parametric analysis of total costs and energy efficiency of 2G enzymatic ethanol production
【24h】

Parametric analysis of total costs and energy efficiency of 2G enzymatic ethanol production

机译：2G酶法乙醇生产总成本和能效的参数分析

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

This paper presents an analysis of total costs (TPC) and energy efficiency of enzymatic ethanol production. The analysis is parametrized with respect to plant capacity and polysaccharides content (pc) of lig-nocellulosic feedstock. The feedstock is based on wheat straw whose price is proportional to its pc ranging from new straw with high pc and high cost to agro-wastes with limited pc but lower cost. The plant flowsheet was built using a conventional biochemical platform with co-saccharification and fermentation (SHF) technologies. A parametric analysis of TPC as a function of plant capacity (100-2100 ton DB/day) and pc (i.e. feedstock price) (80% (75 USD/ton DB)-35% (6 USD/ton DB)) was performed with Net Present Value (NPV) techniques. Current data from Mexican economics and the agro-industrial sector were used as an illustrative case. A quasi-linear section of the TCP surface was identified delimited by (300-1100 ton DB/day) and (80-55% pc) with increments no larger than 21% of the minimum TPC obtained (0.99 USD/1 etOH for 2100 ton DB/day and 80% pc). Major cost contributions are detailed and quantified for boundary cases of this surface. Energy consumption and production were also calculated for all the plant capacity and feedstock pc cases, taking into consideration the Maximum Energy Recovery (MER) obtained from a Pinch analysis. The end-use energy index eer was less than 0.82 for all cases, thus stressing the need to use process equipment with lower energy requirements. TPC are compared against previously published results for SHF technology between 500 and 2100 ton DB/day plant capacities. These values were updated and normalized with respect to feedstock and enzyme costs employed in this work. Differences among TPC and recently published normalized results are within a ±5% range, thus confirming the dependence of TPC from feedstock and enzyme prices, regardless of flowsheet technology and economic conditions.
机译：本文对酶法乙醇生产的总成本（TPC）和能源效率进行了分析。根据植物容量和木质纤维素原料的多糖含量（pc）对分析进行参数化。原料基于小麦秸秆，小麦秸秆的价格与其秸秆的价格成正比，从具有较高秸秆和高成本的新型秸秆到具有有限秸秆但成本较低的农业废物。工厂流程是使用具有共糖化和发酵（SHF）技术的常规生化平台构建的。根据工厂产能（100-2100吨DB /天）和pc（即原料价格）（80％（75 USD /吨DB）-35％（6 USD /吨DB））对TPC进行参数分析净现值（NPV）技术。墨西哥经济学和农业工业部门的最新数据被用作例证。确定TCP表面的准线性截面由（300-1100吨DB /天）和（80-55％pc）界定，增量不大于获得的最小TPC的21％（0.99 USD / 1 etOH对于2100吨DB /天和80％pc）。对于该表面的边界情况，详细说明了主要的成本贡献并进行了量化。还考虑了从Pinch分析获得的最大能量回收率（MER），针对所有工厂产能和原料pc情况计算了能耗和生产。在所有情况下，最终使用的能源指数eer均小于0.82，因此强调需要使用能耗较低的工艺设备。将TPC与以前发布的SHF技术的结果（日产能为500至2100吨DB）进行比较。相对于这项工作中使用的原料和酶成本，对这些值进行了更新和标准化。 TPC与最近公布的标准化结果之间的差异在±5％的范围内，从而证实了TPC对原料和酶价格的依赖性，而与流程图技术和经济条件无关。

著录项

  • 来源
    《Fuel》 |2013年第11期|165-179|共15页
  • 作者

    A. Sanchez; V. Sevilla-Gueitron; G. Magana; L. Gutierrez;

  • 作者单位

    Unidad de Ingenieria Avanzada, Centro de Investigation y Estudios Avanzados (CINVESTAV), Av. del Basque 1145, Zapopan 45019, Jalisco, Mexico;

    Unidad de Ingenieria Avanzada, Centro de Investigation y Estudios Avanzados (CINVESTAV), Av. del Basque 1145, Zapopan 45019, Jalisco, Mexico;

    Unidad de Ingenieria Avanzada, Centro de Investigation y Estudios Avanzados (CINVESTAV), Av. del Basque 1145, Zapopan 45019, Jalisco, Mexico;

    Unidad de Ingenieria Avanzada, Centro de Investigation y Estudios Avanzados (CINVESTAV), Av. del Basque 1145, Zapopan 45019, Jalisco, Mexico;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Second generation bioethanol; Enzymatic ethanol; Total production costs; Total energy balance; Bioethanol production;

    机译：第二代生物乙醇;酶乙醇总生产成本;总能量平衡;生物乙醇生产;

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