Oxidizers nhiệt (TOX) được sử dụng để phá hủy các hydrocarbon phản đối có trong dòng thải từ các nhà máy sản xuất. Các chất thải có thể là chất rắn, chất lỏng, hoặc hơi. Chúng thường được tạo ra liên tục - bãi chôn lấp nếu không kinh tế có thể được ưu tiên cho chất rắn và chất lỏng, trong khi pháo sáng khẩn cấp có thể được ưa thích để tiêu hủy nhiều khí thải. Oxidizers nhiệt được thiết kế để sử dụng năng lượng nhiệt để chuyển đổi các chất gây ô nhiễm hydrocarbon carbon dioxide. | chapter 16 Thermal oxidizers Device type Thermal oxidizers TOX are used to destroy objectionable hydrocarbons contained in waste streams from manufacturing plants. The wastes may be solids liquids or vapors. They are usually generated continuously otherwise landfill may be economically preferred for solids and liquids while emergency flares might be preferred for destruction of many waste gases. Thermal oxidizers are designed to use heat energy to convert hydrocarbon contaminants to carbon dioxide and water vapor and contaminant metals to their oxide form under controlled conditions. Typical applications Thermal oxidizers are used to control combustible contaminant emissions from dozens of sources. Major areas include printing operations chemical and hydrocarbon processing painting coating and converting distillation sludge drying soil remediation plasticizer emissions control extruder emissions and textile manufacturing. They are often used after wet scrubbers where the gas stream contains both water-soluble and hydrocarbon emissions. They are often followed by wet scrubbers where the volatile organic compound VOC is halogenated and upon combustion can form inorganic acids such as HCl. In general if the source emits a combustible VOC that is not economical to recover it is a candidate for control by a thermal oxidizer. Operating principles A TOX simply heats the waste material in the presence of air to allow the hydrocarbon molecules present to burn oxidize at elevated temperature . The simplest TOX consists of a burner a holding chamber furnace and a stack to duct the combustion products to atmosphere . Furnace temperature This chapter was contributed by Dan Banks Banks Engineering Inc. Tulsa Oklahoma. 2002 by CRC Press LLC can range from 500 to 2500 F depending on TOX design and the degree of hydrocarbon destruction needed. If 99 of the incoming hydrocarbons are destroyed the TOX efficiency is 99 expressed as 99 destruction and removal efficiency or 99 DRE . .
