SBIR Phase I: Photocatalytically Active Filters for Volatile Organic Compound Removal from Gas Streams

由能源与环境研究公司开展的小企业创新研究一期项目是一项利用光催化过滤器在气体排放到大气之前有效去除气体中挥发性有机化合物（VOC）的可行性研究。美国环保署列出的17种高容量和高释放的有毒工业化学品清单包括6种氯化有机物。这些化合物比大多数其他有机物质更抗氧化。应开发先进的技术来破坏挥发性有机化合物，包括氯化有机化合物。提出的光催化过滤器将使用特殊制备的表面在环境温度和压力下氧化有毒污染物，同时将分离气流中存在的固体颗粒。本研究的目的是：(1)合成并表征具有特殊净化空气和工业废气性能的新型催化过滤器；(2)测量该过滤器在特定挥发性有机化合物矿化中的光催化氧化活性。第一阶段的研究将提供反应速率表达式，可以预测污染物的氧化速率作为湿度和污染物浓度的函数。此外，该项目将获得数据，以开发最有效和经济规模的系统，用于废气流清洗过程。该项目为大气污染治理和垃圾处理行业提供了一项实用技术。所提出的光氧化过滤器可以在环境温度和压力下去除有毒的voc和颗粒物。该工艺简单、廉价，具有广泛应用于工业中去除空气和工业气体中挥发性有机化合物的潜力。该工艺与先进的空调系统相结合，也可用于室内空气净化。光催化过滤器将氯化有毒化合物氧化形成H20、CO2和HCl， HCl可以很容易地通过汽泡器将废气除去。＊＊＊

*** 9661290 Zamansky This Small Business Innovation Research Phase I project to be carried out by Energy and Environmental Research Corporation is a feasibility study of utilizing photocatalytic filters for effective volatile organic compound (VOC) removal from gas streams before discharging them to the atmosphere. The US EPA list of 17 high-volume and high-release toxic industrial chemicals includes 6 chlorinated organics. These compounds are more resistant to oxidation than most other organic species. Advanced technologies should be developed for destruction of VOCs which include chlorinated organic compounds. The proposed photocatalytic filters will use a specially prepared surface to oxidize toxic contaminants at ambient temperature and pressure and simultaneously will separate the solid particles present in the gas stream. The objectives of the research are to: (1) synthesize and characterize the novel catalytic filter with exceptional properties for decontamination of air and industrial exhaust gases and (2) measure the photocatalytic oxidation activity of this filter in the mineralization of selected VOCs . Phase I study will deliver the reaction rate expression that enables prediction of the oxidation rate of the contaminants as a function of humidity and contaminants concentrations. Also, this project will obtain data to develop the most effective and economic size of the system for exhaust gas stream cleaning processes. This project proffers a technology of utility to the industries of air pollution control and waste destruction. The proposed photo-oxidation filers can remove toxic VOCs and particulate matter at ambient temperature and pressure. The process is simple, inexpensive, and has the potential to be widely used in the industry for VOC removal from air and industrial gases. The process combined with advanced air conditioning systems can also be used for indoor air cleaning. The photocatalytic filer will oxidize chlorinated toxic compounds to form H20, CO2, as well as HCl which can be easily removed by passing the exhaust gas through a water bubbler. ***