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氧化沥青装置生产有毒的尾气,这种尾气系由氮气、氧气、水蒸汽、可凝油份以及不凝性有机气体所组成。它不但有毒,而且恶臭难闻。为果处理不当,会对周围环境造成严重污染。 目前,对氧化沥青尾气的处理,一般采用水洗——焚烧法或油洗——焚烧法。 在水洗——焚烧法中,氧化沥青尾气和大量冷却水在直冷器中进行逆向接触,尾气由下向上流动,冷却水由上向下流动。在接触过程中,尾气中的油份和水蒸汽被冷凝,而后随同冷却水一起流入污油池。不凝气从直冷器顶导出,经分液罐分液后,引入焚烧炉。本法的最
The ASP plant produces toxic tail gas, which consists of nitrogen, oxygen, steam, condensables, and non-condensable organic gases. Not only is it poisonous, it smells bad. If handled improperly, it will cause serious pollution to the surrounding environment. At present, the oxidation of asphalt exhaust treatment, the general use of washing - incineration or oil wash - incineration. In the washing-incineration method, the exhaust gas of ASPO and a large amount of cooling water are reversely contacted in the direct condenser, the exhaust gas flows from bottom to top, and the cooling water flows from top to bottom. During the contact, the oil and steam in the exhaust gas are condensed and then flow into the sump along with the cooling water. Non-condensable gas from the top of the direct cooler, the liquid separation tank, into the incinerator. Most of this law