...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Biofuels, bioproducts & biorefining: Biofpr >Techno-economic analysis of a production-scale torrefaction system for cellulosic biomass upgrading
【24h】

Techno-economic analysis of a production-scale torrefaction system for cellulosic biomass upgrading

机译：技术经济分析纤维素生物质升级生产规模烘焙系统

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

Torrefaction of biomass early in the supply chain is one method of enhancing or preservin biomass quality during storage; reducing storage and transportation costs; attaining uniformity among different feedstock types; and meeting biorefineries' quality and quantity demands for feedstock in a cost effective and sustainable manner. The main objectives of this study were to analyze the mass and energy balance, to assess the techno-economic feasibility of a production-scale torrefaction system, and to quantify the sensitivity of energy and cost results to changes in initial feedstock moisture content, torrefaction process temperature, plant operating window, and initial capital investment. The output from this analysis provides clear guidance on the opportunities and costs associated with production-scale torrefaction of biomass as a feedstock intermediate. Analysis of energy results indicated that the net external energy required for the torrefaction process increased and energy efficiency of the torrefaction system decreased with increasing moisture contents. However, both of these energy metrics exhibited a decreasing trend with increasing process temperatures. In addition to the energy results, unit torrefaction process cost exhibited a decreasing trend with decreasing initial moisture contents of feedstock and decreasing torrefaction process temperatures. For the typical moisture content of 30%(wb), process temperature of 240 degrees C, plant operating window of 6 mo.yr(-1) and initial capital investment of $7.5 million for the system with rated capacity of 25 Tton.hr(-1), unit torrefaction process cost was estimated to be 17.5$-Tton(-1). Additional system improvements through capital cost reduction and wider operating windows can yield a torrefaction product cost of similar to 12 $-Tton(-1). (C) 2011 Society of Chemical Industry and John Wiley & Sons, Ltd
机译：供应链早期的生物质的烘焙是一种增强或储存生物质质量的一种方法;降低储存成本;达到不同原料类型的均匀性;以成本效益和可持续的方式满足生物杂种的质量和数量需求。本研究的主要目标是分析质量和能量平衡，以评估生产规模的烘焙系统的技术经济可行性，并量化能量和成本结果的敏感性，以改变初始原料水分含量，烘焙过程温度，工厂运营窗口和初始资本投资。该分析的产出提供了明确指导与生物量的生产规模与原料中间体相关的机会和成本。能量结果分析表明，烘焙过程所需的净外部能量增加，烘焙系统的能量效率随着水分含量的增加而降低。然而，这两种能量指标都随着过程温度的增加而表现出降低趋势。除了能量结果之外，单位烘焙过程成本还具有降低趋势，随着原料的初始水分含量降低，降低了烘焙过程温度。对于30％（WB）的典型水分含量，工艺温度为240℃，植物操作窗口6莫尔（-1），其初始资本投资为750万美元，额定容量为25tton.hr（ -1），单位烘焙过程成本估计为17.5 $ -tton（-1）。通过减少资金成本和更广泛的操作窗口可以提高额外的系统可以产生类似于12美元--TTON（-1）的Torrefaction产品成本。 （c）2011年化学工业协会和约翰瓦利＆Sons，Ltd

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