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A polygeneration system for the methanol production and the power generation with the solar-biomass thermal gasification

机译：利用太阳能-生物质热气化生产甲醇和发电的多联产系统

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摘要

A polygeneration system of generating methanol and power with the solar thermal gasification of the biomass is proposed in this work. The endothermic reactions of the biomass gasification are driven by the concentrated solar thermal energy in a range of 1000-1500 K. The syngas from the biomass gasification is used to produce the methanol via a synthesis reactor. The un-reacted gas is used for the power generation via a combined cycle power unit. The thermodynamic and economic performances of the polygeneration system are investigated. A portion of the concentrated solar thermal energy can be chemically stored into the syngas, and thus the energy level of the solar thermal energy is improved. Numerical simulations are implemented to evaluate the thermal performances of the proposed polygeneration system. The results indicate that H-2/CO molar ratio of the syngas reaches 1.43-1.89, which satisfies the requirements of the methanol synthesis. The highest energy efficiency and the exergy efficiency of the polygeneration system approximately are 56.09% and 54.86%, respectively. The proposed polygeneration system can achieve the stable utilization of the solar energy and the mitigation of CO2 emission, and thus a promising approach is introduced for the efficient utilization of the abundant solar and biomass resources in the Western China. (c) 2015 Elsevier Ltd. All rights reserved.
机译：在这项工作中，提出了一种利用生物质的太阳热气化来产生甲醇和电力的多联产系统。生物质气化的吸热反应由在1000-1500 K范围内的集中太阳能热驱动。来自生物质气化的合成气用于通过合成反应器生产甲醇。未反应的气体通过联合循环动力装置用于发电。研究了多联产系统的热力学和经济性能。可以将一部分集中的太阳能热化学地存储到合成气中，因此提高了太阳能热的能级。进行数值模拟以评估所提出的多联产系统的热性能。结果表明，合成气的H-2 / CO摩尔比达到1.43-1.89，满足了甲醇合成的要求。多联产系统的最高能源效率和火用效率分别约为56.09％和54.86％。拟建的多联产系统可以实现太阳能的稳定利用并减少CO2排放，因此为有效利用西部丰富的太阳能和生物质资源引入了一种有前途的方法。 （c）2015 Elsevier Ltd.保留所有权利。

著录项

  • 来源
    《Energy Conversion & Management》 |2015年第9期|190-201|共12页
  • 作者

    Bai Zhang; Liu Qibin; Lei Jing; Li Hongqiang; Jin Hongguang;

  • 作者单位

    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China|Univ Chinese Acad Sci, Beijing 100049, Peoples R China;

    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China;

    North China Elect Power Univ, Sch Energy Power & Mech Engn, Beijing 102206, Peoples R China;

    Hunan Univ, Coll Civil Engn, Changsha 410082, Hunan, Peoples R China;

    Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China;

  • 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

    Solar energy; Biomass; Solar-driven gasification; Polygeneration system; Thermal performance;

    机译：太阳能;生物质;太阳能气化;多联产系统;热性能;

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