Catalytic Oxidation of Chlorofluorocarbons and Related Compounds for Pollution Abatement Applications

这个小型企业创新研究第一阶段项目调查了使用一种新型催化剂控制氟氯化碳(氯氟烃)和相关化合物排放到环境中的可行性。氯氟烃和相关化合物的释放被认为对地球臭氧层的下降起到了重要作用。尽管目前正在逐步淘汰各类氟氯化碳的生产，但大量的氟氯化碳已经存在，必须加以处理。旨在取代氯氟烃的化合物，包括氢氟烃(HFC)和氟氯烃(HFC)，也具有消耗臭氧的特性。因此，这些化合物的释放也必须得到控制。催化氧化是一种非常适合控制气相排放的技术。然而，能够氧化氯氟烃的催化剂已经迅速失活，这主要是由于材料在恶劣的酸性气体环境中降解。最近发现了一种新型催化剂，能够在不损失催化活性的情况下氧化含氟有机分子。这项第一阶段提案的目标是评估这种新型催化剂对空气流中氯氟化碳和相关化合物的氧化破坏能力。为实现这一目标，将对催化剂针对选定的氟氯化碳、氢氟碳化物和氟氯烃进行反应性和性能稳定性评估。将在广泛的工艺条件下进行测试，以确定催化剂的性能范围。根据迄今获得的性能数据，预计该催化剂将氧化上述化合物而不会失去催化活性。

This Small Business Innovative Research Phase I project investigates the feasibility of using a novel catalyst to control the release of CFCs (chlorofluorocarbons) and related compounds into the environment. The release of CFCs and related compounds is believed to play a significant role in the decline in the earth's ozone layer. Although the production of CFCs is currently being phased out, large quantities already exist and must be dealt with. Compounds intended to replace CFCs, which include HFC (hydrofluorocarbons) and HCFCs (hydrochlorofluorocarbons), also possess ozone-depleting properties. As a result, the release of these compounds must also be controlled. Catalytic oxidation is a technology well suited for controlling vapor phase emissions. However, catalysts capable of oxidizing CFCs have deactivated rapidly, due primarily to materials degradation in the harsh acid gas environment. A novel catalyst was recently identified which was capable of oxidizing fluorine containing organic molecules without loss of catalytic activity. The objective of this Phase I proposal is to evaluate this novel catalyst for its ability to oxidatively destroy CFCs and related compounds in streams of air. To meet this objective, the catalyst will be evaluated for reactivity and performance stability against selected CFCs, HFCs, and HCFCs. Tests will be conducted over a wide range of process conditions so that the performance envelope of the catalyst may be established. Based on performance data obtained to date, it is anticipated that the catalyst will oxidize the above compounds without loss of catalytic activity.