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Making coal relevant for small scale applications: Modular gasification for syngas/engine CHP applications in challenging environments

机译：使煤炭相关用于小规模应用：用于合成气/发动机CHP应用的模块化气化在挑战环境中

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Small-scale coal gasification technology, coupled to a reciprocating engine generator, has the potential for making coal a cost competitive resource for meeting the flexible energy needs and resiliency requirements of utilities across the United States. To maintain grid stability and reliability, electrical generation must be regulated to match the load at the proper voltage and frequency. With the expansion of intermittent sources into the grid, such as wind and solar, frequency and voltage regulation become increasingly important and challenging.This work presents the results of a Front End Engineering Design (FEED) effort to detail the engineering and preliminary economics of a small-scale, air blown, fixed-bed gasification process, operating at near-atmospheric pressure, with gas cleanup to provide syngas and pyrolysis liquid fuels for use in reciprocating engine generators for combined heat and power at the University of Alaska Fairbanks.A very detailed assessment of capital and operating costs allows the evaluation of a levelized cost of electricity of 208.06 $/MWh, which can be reduced through the selling of by-products (steam for heating purposes and pyrolysis liquids to be used for power generation in an existing diesel engine). A combined sensitivity analysis, based on the Monte Carlo approach, has been carried out to evaluate the effects of the uncertainties (capital and operating costs and plant annual availability) on the LCOE.
机译：小型煤气化技术与往复式发动机发生器相结合，有可能使煤炭成为符合美国公用事业的灵活能源需求和弹性要求的成本竞争资源。为了保持电网稳定性和可靠性，必须调节发电以将负载与适当的电压和频率相匹配。随着间歇源的扩展到网格中，如风和太阳能，频率和电压调节变得越来越重要和挑战。本工作介绍了前端工程设计（Feed）努力的结果，详细介绍了A的工程和初步经济学小规模，空气吹，固定床气化过程，在近大气压下运行，气体清洁为往复式发动机发电机提供合成气和热解液燃料，以便在阿拉斯加大学费尔班克斯联合热量和电力.A资本和运营成本的详细评估允许评估208.06 $ / MWH的电力均衡成本，这可以通过销售副产品（用于加热目的和热解液的蒸汽，以用于现有的发电柴油发动机）。已经进行了基于蒙特卡罗方法的组合敏感性分析，以评估不确定性（资本和运营成本和工厂年可用性）对LCoE的影响。

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