所以，为使精炼渣系具有良好的发泡性能，渣中氧化亚铁含量应小于1％，最好小于0．5％。

In order to maintain the excellent foaming property the content of ferric oxide in the refining slag should be controlled under 1. 0%, and lower than 0. 5% much better.

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几年间，Massey亦同时是BP的董事会成员，他认为董事会在2002年德州精炼厂事故后与NGO的合作使BP有所获益。

For several years Mr Massey has also been on the board of BP, which he believes benefited from its work with NGOs after a deadly accident at a refinery in Texas in 2002.

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榨出的油使用UOP霍尼韦尔的专利工艺进行精炼，使之可以添加入喷气发动机油。

That oil can then be modified by a proprietary UOP Honeywell process that makes it suitable for blending in jet fuel.

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