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Robust solar-energy system design and optimisation for reactive distillation column in methyl acetate hydrolysis process

机译：耐高温太阳能系统设计与优化反应蒸馏塔甲基乙酸甲酯水解过程

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摘要

There is a need to be able to design a solar-energy system that considers the fluctuations in the levels of solar irradiation. A solar-energy system consists of two parts: the solar-thermal and power-generation parts. However, current designs address this concern only as it relates to the power-generation part, while the solar-thermal part is designed assuming constant conditions, such that the overall design of the solar-energy system is sub-optimal. In this paper, a novel overall design procedure is proposed for a solar-energy system, which simultaneously considers the solar-thermal and power-generation parts. This design combines the off-design performance of the power-generation part and the overall design parameters for the solar-energy system. In addition, a solar steam plant (SSP) and solar-organic Rankine cycle (SORC) were integrated with the reactive distillation column (RD) and vapor recompression technology assisted RD (VRC-RD) in the methyl acetate hydrolysis process. Actual hourly solar fluctuation data for Islamabad were selected as typical conditions for synthesising the design optimisation of the solar-energy systems. The results showed that this robust design optimisation produced a large real reduction in the total annual cost (TAC) when considering the optimisation of the solar-thermal part under real conditions; in particular, the optimised performance of the SORC with toluene as the working fluid can realise a reduction in the TAC of 42.05%. In addition, with comprehensive optimisation, the SORC with toluene proved to offer the best performance of three working fluid alternatives and realised the largest TAC for an SSP scheme (46.7%). Consideration of the off-design performance in the design of the solar-thermal part also occupied a vital position.
机译：需要能够设计一种太阳能系统，其考虑太阳照射水平的波动。太阳能系统由两部分组成：太阳能热电部和发电部件。然而，目前的设计只有在与发电部分相关的情况下解决这种问题，而太阳能热部分假设恒定条件，使得太阳能系统的整体设计是次优的。本文提出了一种新颖的整体设计程序，用于太阳能系统，同时考虑太阳能和发电部件。该设计结合了发电部件的非设计性能和太阳能系统的整体设计参数。此外，太阳能蒸汽厂（SSP）和太阳能 - 有机兰氨氨酸循环（SORC）与反应蒸馏塔（RD）和蒸汽再压实技术辅助RD（VRC-RD）集成在乙酸甲酯水解过程中。伊斯兰堡的实际每小时太阳波动数据被选为典型条件，用于综合太阳能系统的设计优化。结果表明，在考虑在真实条件下的优化太阳能 - 热部分的优化时，这种稳健的设计优化在总年度成本（TAC）中产生了大量的实际减少;特别地，索参与甲苯作为工作流体的优化性能可以实现TAC的降低42.05％。此外，通过综合优化，索参具有甲苯证明了三种工作流体替代品的最佳性能，实现了SSP方案的最大TAC（46.7％）。考虑到太阳能 - 热部分设计中的非设计性能也占据了重要的位置。

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  • 来源
    《Energy Conversion & Management》 |2021年第9期|114426.1-114426.14|共14页
  • 作者

    Chen Hao; Zhao Li; Cong Haifeng; Li Xingang;

  • 作者单位

    Tianjin Univ Sch Chem Engn & Technol Natl Engn Res Ctr Distillat Technol Collaborat Innovat Ctr Chem Sci & Engn Tianjin Tianjin 300072 Peoples R China;

    Tianjin Univ Minist Educ China Key Lab Efficient Utilizat Low & Medium Grade Ene Tianjin 300350 Peoples R China;

    Tianjin Univ Sch Chem Engn & Technol Natl Engn Res Ctr Distillat Technol Collaborat Innovat Ctr Chem Sci & Engn Tianjin Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn & Technol Natl Engn Res Ctr Distillat Technol Collaborat Innovat Ctr Chem Sci & Engn Tianjin Tianjin 300072 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

    Reactive distillation; Solar-energy system; Solar organic Rankine cycle; Off-design performance; Design optimisation;

    机译：无功蒸馏;太阳能系统;太阳能有机朗肯循环;非设计性能;设计优化;

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