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菲利普斯石油公司已将其防结焦剂技术在美国的商业许可证卖给莫比尔化学公司。此防焦技术供用于蒸汽裂解炉。这种称作CCA500的化学抑制剂能延长裂解炉检修周期的运转期限1～4倍(视炉管的状况而定),并能降低一氧化碳的生成量。此化学抑制剂曾在菲利普斯公司的斯威尼炼油厂和Dael
Phillips Petroleum has sold its commercial license for anti-coking technology in the United States to Mobile Chemical. This defocusing technology is used for steam cracking furnaces. The chemical inhibitor known as CCA500 can extend the operating period of cracking furnace overhaul cycle by 1 to 4 times (depending on the condition of the furnace tube) and can reduce the amount of carbon monoxide generated. The chemical inhibitor was worked at Phillips’s Sweeney Refineries and Dael