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Coupling Computer-Aided Process Simulation and Estimations of Emissions and Land Use for Rapid Life Cycle Inventory Modeling

机译：快速生命周期清单建模的计算机辅助过程模拟与排放和土地利用估算的耦合

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摘要

A methodology is described for developing a gate-to-gate life cycle inventory (LCI) of a chemical manufacturing process to support the application of life cycle assessment in the design and regulation of sustainable chemicals. The inventories were derived by first applying process design and simulation to develop a process flow diagram describing the energy and basic material flows of the system. Additional techniques developed by the United States Environmental Protection Agency for estimating uncontrolled emissions from chemical processing equipment were then applied to obtain a detailed emission profile for the process. Finally, land use for the process was estimated using a simple sizing model. The methodology was applied to a case study of acetic acid production based on the Cativa process. The results reveal improvements in the qualitative LCI for acetic acid production compared to commonly used databases and top-down methodologies. The modeling techniques improve the quantitative LCI results for inputs and uncontrolled emissions. With provisions for applying appropriate emission controls, the proposed method can provide an estimate of the LCI that can be used for subsequent life cycle assessments.
机译：描述了一种方法，用于开发化学制造过程的门到门生命周期清单（LCI），以支持生命周期评估在可持续化学品的设计和监管中的应用。首先通过应用过程设计和仿真来开发清单，以开发描述系统能量和基本物料流的过程流程图。然后，应用了美国环境保护署开发的用于估算化学加工设备不受控制的排放量的其他技术，以获得该过程的详细排放量概况。最后，使用简单的规模模型来估算过程中的土地利用。该方法应用于基于Cativa工艺的乙酸生产案例研究。结果表明，与常用的数据库和自上而下的方法相比，用于乙酸生产的定性LCI有所改善。建模技术改善了输入和不受控制的排放的定量LCI结果。通过应用适当的排放控制规定，所提出的方法可以提供可用于后续生命周期评估的LCI估计值。

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