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A process integration approach to the strategic design and scheduling of biorefineries.

机译：一种工艺整合方法，用于生物精炼厂的战略设计和调度。

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摘要

This work focused upon design and operation of biodiesel production facilities in support of the broader goal of developing a strategic approach to the development of biorefineries. Biodiesel production provided an appropriate starting point for these efforts. The work was segregated into two stages.;Various feedstocks may be utilized to produce biodiesel, to include virgin vegetable oils and waste cooking oil. With changing prices, supply, and demand of feedstocks, a need exists to consider various feedstock options. The objective of the first stage was to develop a systematic procedure for scheduling and operation of flexible biodiesel plants accommodating a variety of feedstocks. This work employed a holistic approach and combination of process simulation, synthesis, and integration techniques to provide: process simulation of a biodiesel plant for various feedstocks, integration of energy and mass resources, optimization of process design and scheduling, and techno-economic assessment and sensitivity analysis of proposed schemes. An optimization formulation was developed to determine scheduling and operation for various feedstocks and a case study solved to illustrate the merits of the devised procedure.;With increasing attention to the environmental impact of discharging greenhouse gases (GHGs), there has been growing public pressure to reduce the carbon footprint associated with fossil fuel use. In this context, one key strategy is substitution of fossil fuels with biofuels such as biodiesel. Design of biodiesel plants has traditionally been conducted based on technical and economic criteria. GHG policies have the potential to significantly alter design of these facilities, selection of feedstocks, and scheduling of multiple feedstocks. The objective of the second stage was to develop a systematic approach to design and scheduling of biodiesel production processes while accounting for the effect of GHG policies. An optimization formulation was developed to maximize profit of the process subject to flowsheet synthesis and performance modeling equations. The carbon footprint is accounted for through a life cycle analysis (LCA). The objective function includes a term reflecting the impact of the LCA of a feedstock and its processing to biodiesel. A multiperiod approach was used and a case study solved with several scenarios of feedstocks and GHG policies.
机译：这项工作集中在生物柴油生产设施的设计和运营上，以支持制定发展生物精炼厂战略方法的更广泛目标。生物柴油的生产为这些努力提供了适当的起点。工作分为两个阶段：各种原料可用于生产生物柴油，包括原始植物油和废食用油。随着原料的价格，供应和需求的变化，存在考虑各种原料选择的需求。第一阶段的目标是开发一种系统的程序，以安排和运行适应各种原料的柔性生物柴油厂。这项工作采用整体方法，并结合了过程模拟，合成和集成技术，以提供：用于各种原料的生物柴油厂的过程模拟，能源和大量资源的集成，过程设计和调度的优化以及技术经济评估和拟议方案的敏感性分析。开发了一种优化公式来确定各种原料的调度和操作，并通过案例研究来说明所设计程序的优点。随着人们日益关注排放温室气体（GHG）的环境影响，越来越多的公众压力减少与化石燃料使用相关的碳足迹。在这种情况下，一项关键策略是用生物燃料（例如生物柴油）替代化石燃料。传统上，生物柴油厂的设计是根据技术和经济标准进行的。温室气体政策有可能显着改变这些设施的设计，原料的选择以及多种原料的调度。第二阶段的目标是在考虑温室气体政策效果的同时，开发一种设计和安排生物柴油生产过程的系统方法。开发了一种优化配方，以最大程度地提高流程利润（取决于流程表合成和性能建模方程式）。碳足迹是通过生命周期分析（LCA）解决的。目标函数包括一个反映原料LCA及其对生物柴油加工的影响的术语。使用了一种多周期的方法，并结合了一些原料和温室气体政策方案，解决了一个案例研究。

著录项

  • 作者

    Elms, Rene Davina.;

  • 作者单位

    Texas A&M University.;

  • 授予单位 Texas A&M University.;
  • 学科 Economics Environmental.;Engineering Chemical.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 162 p.
  • 总页数 162
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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