SBIR Phase II: Photochemical Process for Transformation of Ozone-Depleting Substances into Environmentally Benign and Commercially Valuable Products

SBIR 第二阶段：将消耗臭氧层物质转化为对环境无害且具有商业价值的产品的光化学过程

• 批准号: 9704053
• 负责人: Moshe Lavid
• 金额: $ 30万
• 依托单位: M.L. Energia, Incorporated
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-08-01 至 2004-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9704053&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Photochemical; Process

This SBIR Phase II project will lead to a full-scale commercialization of a novel technology capable of transforming existing stockpiles of ozone-depleting substances (chlorofluorocarbons (CFCs) and Halons) into environmentally acceptable and commercially valuable products. The proposed Photo-Hydro-Dehalogenation (PHD) technology exploits a synergistic effect obtained by combining ultraviolet (UV) radiation with a reducing atmosphere. UV fight promotes chain initiation by carbon-halogen bond cleavage. Long-chain radical reactions lead to formation of desirable products. Phase I research has already proven feasibility. Experimental results with three representative chlorofluorocarbons have convincingly and unambiguously demonstrated that the PHD process can achieve selective and high conversion at a cost of less than $ 1/lb of CFC converted, which is lower than any current destruction technology. The primary objective of Phase II is to design, construct and employ a pilot-scale prototype for a field demonstration. To meet this objective, a three-task work plan has been developed. It includes: (a) bench-scale studies of CFCs and extension to Halons, supplemented by chemical kinetic modeling, (b) design and construction of a pilot-scale prototype, and (c) field demonstration and performance evaluation. Successful completion of Phase II will ultimately lead to Phase III commercialization. This process should lead to a `green` technology for environmentally safe transformation of ozone-depleting substances into commercially valuable products. The current stockpile of estimated 4.5 billion pounds of CFCs, which poses a serious disposal problem, will become a vital feedstock to produce high value products. Based on preliminary cost estimates, the existing stockpile which represents a huge environmental liability can be turned with the process into about 4 billion dollars of salable products.

这一SBIR第二阶段项目将导致一项新技术的全面商业化，该技术能够将现有的消耗臭氧层物质库存（氯氟化碳和哈龙）转化为环境上可接受的和具有商业价值的产品。所提出的光-氢-脱卤（PHD）技术利用了通过将紫外线（UV）辐射与还原气氛相结合而获得的协同效应。 UV光通过碳-卤素键断裂促进链引发。 长链自由基反应导致所需产物的形成。 第一阶段的研究已经证明了可行性。 三种代表性的氟氯化碳的实验结果令人信服地和明确地表明，PHD工艺可以实现选择性和高转化，成本低于1美元/磅的氟氯化碳转化，这是低于任何目前的销毁技术。 第二阶段的主要目标是设计、建造和使用一个试验规模的原型，用于实地演示。 为实现这一目标，制定了一项三项任务的工作计划。 它包括：（a）对氟氯化碳和哈龙进行实验室规模的研究，并辅之以化学动力学建模，（B）设计和建造一个试验规模的原型，以及（c）实地示范和性能评估。 第二阶段的成功完成将最终导致第三阶段的商业化。 这一进程应导致一种"绿色"技术，以无害环境的方式将消耗臭氧物质转化为具有商业价值的产品。 目前估计有45亿磅的氟氯化碳库存，造成了严重的处置问题，将成为生产高价值产品的重要原料。 根据初步的成本估计，现有的库存代表了巨大的环境责任，可以通过这一过程转化为价值约40亿美元的可销售产品。