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首页> 外文会议>Proceedings of the Twenty-eighth Arctic and Marine Oilspill Program(AMOP) Technical Seminar vol.1 >Mercury in Canadian Crude Oil
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Mercury in Canadian Crude Oil

机译：加拿大原油中的汞

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Recent reports by Environment Canada and the US Environmental Protection Agency have highlighted the potential of the combustion of petroleum products as a significant source for air-borne mercury pollution. Atmospheric mercury is of concern both because of its toxicity and persistence. Mercury can remain in the atmosphere for years and be transported to ecosystems far from their point of origin, such as in Canada's Arctic. With the data on mercury concentrations in petroleum conflicting and contradictory, Environment Canada, in partnership with Canadian Petroleum Products Institute and the majority of the Canadian refineries, has undertaken a survey of the average total mercury concentration in crude oil processed in Canadian refineries. This paper presents preliminary results of the total mass of mercury present in crude oil processed in Canada annually, the potential upper limit of the sum of total mercury in all refined products. This information will be used to determine the significance of vehicle exhaust emissions to the overall Canadian mercury emissions budget. Samples of crude oil have been collected from refineries for crude types covering approximately 70% of the total crude volume processed in Canada in 2002. Over 30 Canadian crude types have been collected and analysed in the study. The total mercury concentration in each sample is quantitated by two techniques: high temperature combustion followed by cold vapour atomic absorption (CVAA) and cold vapour atomic fluorescence (CVAF) detection. Preliminary distributions of total mercury concentrations in 80 oil samples are reported in the present work. Good agreement is demonstrated between the two analytical techniques.
机译：加拿大环境部和美国环境保护局的最新报告强调了石油产品燃烧作为空气中汞污染的重要来源的潜力。大气中的汞由于其毒性和持久性而备受关注。汞可以在大气中保留数年，并被输送到远离其起源地的生态系统中，例如在加拿大的北极地区。利用有关石油中相互矛盾和矛盾的汞浓度的数据，加拿大环境部与加拿大石油产品研究所和大多数加拿大炼油厂合作，对加拿大炼油厂加工的原油中平均总汞浓度进行了调查。本文介绍了加拿大每年加工的原油中的汞总量的初步结果，即所有精炼产品中汞总量的潜在上限。该信息将用于确定汽车尾气排放对加拿大总体汞排放预算的重要性。 2002年，从炼油厂收集的原油样本的原油类型约占加拿大加工原油总量的70％。在研究中已收集和分析了30多种加拿大原油类型。每个样品中的总汞浓度通过两种技术进行定量：高温燃烧，然后进行冷蒸气原子吸收（CVAA）和冷蒸气原子荧光（CVAF）检测。本工作报告了80个油样中总汞浓度的初步分布。两种分析技术之间显示出良好的一致性。

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