石油设备网讯 据普氏能源资讯5月21日伦敦报道，交易消息人士周二称，过去一周从黑海港口新罗西斯克(Novorossiisk)运出的伦敦-俄罗斯乌拉尔原油中有机氯化物含量较高，但仍在规定范围内。
乌拉尔一位交易员表示:“这是在限制之内，但质量正在恶化。”他补充称，中酸性原油石脑油中有机氯化物的含量已从更典型的1-2 ppm跃升至5-7 ppm。
据消息人士称，乌拉尔的标准规格允许最高达到10ppm，但多数炼油厂在3-4 ppm后开始出现未混合原油运行问题。有机氯化物在超过140摄氏度时具有腐蚀性，会损坏精炼设备。
今年4月，俄罗斯的邻国白俄罗斯首次检测到有机氯化物对俄罗斯原油的污染，这最初影响了通过德鲁日巴管道向白俄罗斯、乌克兰和中欧的供应。
后来又扩大到乌斯特-卢加的货物装载，而新罗西斯克以前没有发现任何质量问题。
作为清理工作的一部分，俄罗斯管道运营商Transneft曾表示，计划将德鲁日巴(Druzhba)管道中的受污染原油与清洁原油混合，通过Novorossiisk进一步出口，同时承诺确保其出口混合原油的质量符合乌拉尔标准。
Transneft的一位代表周二拒绝就此事进一步置评。
交易消息人士称，新罗西斯克乌拉尔货物的买家并没有要求质量保证或折扣，而是在密切关注事态的发展。
另一名乌拉尔交易员表示:“这完全符合规范，因此没有折扣。“
薛珂 编译自 普氏能源资讯
原文如下：
Novorossiisk Urals crude sees higher level of organic chlorides, still on-spec
Russian Urals crude loading out of the Black Sea port of Novorossiisk contained higher levels of organic chlorides in cargoes loading over the past week but remained within its specification, trading sources said Tuesday.
"It is within the limit but the quality is worsening," one Urals trader said, adding that the level of organic chlorides has jumped to 5-7 ppm in the naphtha cut of the medium sour crude, from more typical 1-2 ppm levels.
The standard Urals specifications allows up to 10 ppm but most refineries begin to have issues running the crude unblended after 3-4 ppm, according to sources. Organic chlorides become corrosive at temperatures exceeding 140 degrees Celsius and can damage refining equipment.
Contamination of Russian crude by organic chlorides was first detected in Russia's neighbor Belarus in April, originally affecting supply to Belarus, Ukraine and Central Europe through the Druzhba pipeline.
That was later extended to cargo loadings at Ust-Luga, while Novorossiisk had not seen any quality issues previously.
As part of the clean-up, Russian pipeline operator Transneft had said it planned to blend contaminated crude from the Druzhba pipeline with clean crude for further exports via Novorossiisk, while pledging to ensure the quality of its export blend meeting Urals specifications.
A representative from Transneft declined to comment further on the issue on Tuesday.
Trading sources said buyers of Novorossiisk Urals cargoes had not been asking for quality assurances or discounts on purchases but were monitoring the situation carefully for further development.
"It is well within the spec, so no discounts," a second Urals trader said.
