Abstract A systematic framework is proposed for sustainable chemical product design. The product technical requirements are first identified as design constraints. Then, a base-case product is generated as a reference on top of which a more sustainable product is designed. To do so, the life cycle of base-case product (in particular, whether and how it should be recycled) is decided by using life cycle sustainability assessment (LCSA) or rule-based methods depending on the availability of life cycle inventory data. In addition, the hotspots (i.e., life cycle stages with major impact) are identified. Afterwards, to reduce the impact on hotspots, product design targets and design alternatives are generated using knowledge-base and heuristics. Lastly, LCSA or rule-based methods is applied to decide the most sustainable product from the generated product design alternatives. Two case studies – composite bumper beam and lithium ion battery – are provided to illustrate the framework.

中文翻译：

---

可持续产品设计：生命周期方法

摘要 提出了可持续化学产品设计的系统框架。产品技术要求首先被确定为设计约束。然后，生成一个基本案例产品作为参考，在此基础上设计更可持续的产品。为此，基本案例产品的生命周期（特别是，是否以及如何回收）取决于生命周期清单数据的可用性，通过使用生命周期可持续性评估 (LCSA) 或基于规则的方法来决定。此外，还确定了热点（即具有重大影响的生命周期阶段）。之后，为了减少对热点的影响，使用知识库和启发式方法生成产品设计目标和设计备选方案。最后，LCSA 或基于规则的方法用于从生成的产品设计备选方案中确定最可持续的产品。提供了两个案例研究——复合保险杠横梁和锂离子电池——来说明该框架。