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Storing Syngas Lowers the Carbon Price for Profitable Coal Gasification

机译:储存合成气降低了可获利的煤气化的碳价

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摘要

Integrated gasification combined cycle (IGCC) electric power generation systems with carbon capture and sequestration have desirable environmental qualities but.are not profitable when the carbon dioxide price is less than approximately $50 per metric ton. We examine whether an IGCC facility that operates its gasifier continuously but stores the syngas and produces electricity only when daily prices are high may be profitable at significantly lower CO_2 prices. Using a probabilistic analysis, we have calculated the plant-level return on investment (ROD and the value of syngas storage for IGCC facilities located in the U.S. Midwest using a range of storage configurations. Adding a second turbine to use the stored syngas to generate electricity at peak hours and implementing 12 h of above-ground high-pressure syngas storage significantly increases the ROI and net present value. Storage lowers the carbon price at which IGCC enters the U.S. generation mix by approximately 25%.
机译:具有碳捕获和封存的集成气化联合循环(IGCC)发电系统具有理想的环境质量,但是当二氧化碳价格低于每公吨约50美元时,就无法盈利。我们研究了IGCC设施是否能够连续运行其气化炉,但仅在每日价格较高时才存储合成气并发电,是否能以大大降低的CO_2价格获利。通过概率分析,我们使用一系列存储配置计算了工厂级的投资回报率(ROD和位于美国中西部的IGCC设施的合成气存储的价值。添加第二台涡轮机以使用存储的合成气发电)在高峰时段实施12小时的地上高压合成气存储可显着提高ROI和净现值,存储会使IGCC进入美国发电混合物的碳价降低约25%。

著录项

  • 来源
    《Environmental Science & Technology》 |2007年第23期|p.7974-7979|共6页
  • 作者

    ADAM NEWCOMER; JAY APT;

  • 作者单位

    Carnegie Mellon Electricity Industry Center, Tepper School of Business, and Department of Engineering and Public Policy, Carnegie Mellon University, 254 Posner Hall, Pittsburgh, Pennsylvania 15213;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 环境化学;
  • 关键词

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