GOALI: Fundamentals of a Novel Advanced Oxidation Process for Foundries that Improves Green Sand Performance and Diminishes Air Emissions

GOALI：铸造厂新型高级氧化工艺的基础知识，可提高潮模砂性能并减少空气排放

• 批准号: 0070183
• 负责人: Fred Cannon
• 金额: $ 25万
• 依托单位: Pennsylvania State Univ University Park
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2000
• 资助国家: 美国
• 起止时间: 2000-07-15 至 2003-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0070183&HistoricalAwards=false
• 关键词: GOALI; Fundamentals; Novel; Advanced; Oxidation

This GOALI award is to develop the fundamental understanding of an environmentally benign manufacturing process modification for metal casting. During metal casting, the molten metal solidifies within a mold and takes on a complex shape. Green sand molds include some coal and adhesives; and when these experience the high temperatures of molten metal, they can emit volatile organic compounds (VOCs). A novel advanced oxidation (AO) process has been installed at five full-scale foundries, and has successfully decreased these emissions by 30-75%. Moreover, this process has also diminished by 10-30% the amount of clay, coal, and sand required; and it has decreased casting defects by 10%. The research objectives are to (a) better understand the fundamental engineering kinetics that underlie advanced oxidation processing; (b) at the bench and pilot scale, build on these fundamentals to yet further diminish emissions and enhance green sand performance with the AO process. The potential impact and success of this research could be to advance the understanding of this AO process to where it will diminish total U. S. air pollution by 0.1 to 1% (relative to all air pollution sources). At the same time, enhancement of these features will save money, prevent pollution, reduce waste to landfills, broaden foundries' opportunities, and create U. S. jobs in the vital foundry industry. Tests will measure VOC emissions and green sand performance in a manner that facilitates enhanced behavior while also advancing basic process understanding and engineering understanding. Bench scale tests will also mimic key features of the thermal exposure that foundry green sands experience, in order to acquire fundamental insight via well-controlled experiments.

该目标奖是要对金属铸造的环境良性制造过程修改产生基本理解。在金属铸造过程中，熔融金属在模具中固化并具有复杂的形状。绿沙模包括一些煤和粘合剂；当这些经历熔融金属的高温时，它们可以发出挥发性有机化合物（VOC）。 一种新型的晚期氧化（AO）工艺已安装在五个全尺寸铸造厂，并成功地将这些排放量降低了30-75％。 此外，此过程还减少了所需的粘土，煤和沙子量的10-30％。它的铸造缺陷减少了10％。 研究目标是（a）更好地理解构成高级氧化处理的基本工程动力学； （b）在板凳和飞行员量表上，基于这些基本原理，以进一步减少排放，并通过AO过程提高绿沙性能。 这项研究的潜在影响和成功可能是将对这一AO过程的理解提高到将美国空气污染总数减少0.1％至1％（相对于所有空气污染来源）。 同时，这些功能的增强将节省资金，防止污染，减少垃圾填埋场，扩大铸造厂的机会，并在重要的铸造厂创造美国就业机会。 测试将以有助于增强行为的方式来衡量VOC的排放和绿沙性能，同时也推进基本的过程理解和工程理解。 基准尺度测试还将模仿铸造绿沙体验的热暴露的关键特征，以便通过良好控制的实验获得基本的见解。