An Intergrated Approach to Environmentally Conscious Paper Mill Operations

摘要- Doyle - 9729782 纸浆和造纸工业（PPI）是美国制造业的一个资本密集型部门，是美国工业有害废物总产量的主要来源。 为了保持和提高美国PPI的全球竞争力，同时确保安全，清洁和可持续的环境，废物最小化和处理措施需要整合到现有（和拟议）造纸米尔斯的整体运营中。 本研究的目标是开发和展示基于计算的建模和优化方法，这将有助于这种集成操作。 技术工作包括开发解决高度结构化的混合整数线性规划算法（MILP）的有效方法，开发描述噪声过程趋势的分层表示，开发基于数学规划的大规模模型预测控制方法，以及调查瞬态操作条件下过程模型离散选择的配方。 开发的环保意识造纸厂运营的操作方法将与纸浆和造纸行业（惠好）的工业合作伙伴合作，以工业案例研究为基准。

Abstract - Doyle - 9729782 The pulp and paper industry (PPI), a very capital intensive component of the U.S. manufacturing sector, is a major source of the total U.S. industrial output of hazardous wastes. In order to maintain and enhance the global competitiveness of the U.S. PPI while ensuring a safe, clean, and sustainable environment, waste minimization and processing measures need to be integrated within the overall operation of existing (and proposed) paper mills. The goal of this research is to develop and demonstrate computing based modeling and optimization methodologies which will facilitate such integrated operations. The technical work involves development of efficient methods for solving highly structured mixed integer linear programming algorithms (MILP's), development of hierarchical representations for describing noisy process trends, the development of mathematical programming based approaches to large scale model predictive control, and the investigation of formulations for incorporating discrete choices of process models for transient operating conditions. The developed operational methodology for environmentally conscious paper mill operation will be benchmarked against an industrial case study in cooperation with an industrial collaborator from the pulp and paper industry (Weyerhaeuser).