标准摘要
[中文适用范围]: 引言 本报告为估算因清除地上储罐底部的液体残留物(独立的原液)和清除与残渣和水(污泥)混合的原液的剩余沉积物而产生的排放提供了指导。本报告中涉及的排放物是在储罐清洗过程中离开储罐的排放物。本报告不涉及: ?C 蒸汽离开储罐后的命运(除了考虑控制装置的效率@,如第 8 节中讨论的)@ ?C 污泥离开储罐后的命运(或污泥处理或处置期间可能发生的排放)@或真空卡车的真空泵或抽吸泵@(如果在储罐清洗过程中使用此类设备)可能排出的碳排放。换句话说,本报告涉及对在储罐清洗过程中以蒸气形式离开储罐的挥发性有机化合物的质量进行估计。它不涉及从储罐中取出液体或污泥后处理这些材料可能产生的排放。储罐清洗是一项非常规活动,目前尚无排放因子。虽然给定的储罐可能每 10 到 20 年才清洁一次,但法规可能要求在发生这种情况时报告由此产生的排放。此外,石油工业设施可能需要估算其厂区内所有来源的排放量。这些监管要求包括 EPCRA 第 313 条规定的有毒物质排放清单报告和第 70 部分运营许可计划规定的年度排放报告。鉴于报告排放量@的这些要求,需要有关如何估算排放量的指导。已经为石油相关设施@的大多数常规排放源制定了排放因子,但几乎没有可用于估算非常规源排放的指导。当非常规事件发生时,公司通常会花费大量精力来准备对由此产生的排放量的善意估计。然而,在缺乏任何全行业实践或指导的情况下@这些估计可能会有很大差异。本报告旨在减少生成储罐清洁排放量@的真诚估计所需的工作量,并使最终排放估计值更加统一。本报告不是进入和清洁储罐的指南。此类程序在 API 标准 2015 和 API 建议实践 2016 中进行了阐述。 [外文原描述]: Provides guidance for estimating emissions that result from removing the liquid heel (free-standing stock liquid) and cleaning the remaining deposits of stock liquid mixed with residue and water (sludge) from the bottoms of aboveground storage tanks. The emissions addressed in this report are those that leave the tank during the tank cleaning process. This report does not address: • the fate of vapors after the have left the tank (other accounting for the efficiency of the control device) • the fate of sludge after it has left the tank (or emissions that may occur during sludge treatment or disposal), or • emissions that may be expelled by the vacuum pump of a vacuum truck or suction pump, if such devices are used in the tank cleaning process. In other words, this report addresses the estimation of the mass of volatile organic compounds that leave the tank as vapor during the tank cleaning process. It does not address emissions that may result from the handling of liquids or sludge af
英文名称Evaporative Loss from the Cleaning of Storage Tanks