Hydroprocessing of various refinery streams removes contaminants and increases stability of some of the streams, improving quality. Removed contaminants include heteroatoms such as sulfur and nitrogen and, in some cases, small quantities of metals. Increased stability results from converting olefins in processing streams to saturated hydrocarbons.
Ecolab Malaysia, Suite 12-01, 12-02 and 12-03A Level 12, The Pinnacle, Persiaran Lagoon, Bandar Sunway Petaling Jaya, Selangor Darul Ehsan, Malaysia 46150
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Fouling in hydroprocessing heat exchangers and furnaces can differ depending on which streams are processed, the quality of the stream (straight run or cracked feed stock – or a combination of both), unit design and operation, and location. When processing lighter streams such as naphtha and diesel, the foulant materials that occur at the feed heat exchangers and furnace may be a combination of polymeric and inorganic deposition. In the case of processing heavier gas oil cuts and resid streams, the foulant material may be some combination of polynuclear aromatic compounds, asphaltenes and inorganic material, depending on the stream.
Nalco Champion research teams have developed technologies and approaches to investigate the causes of the fouling, monitor the degree of the fouling and identify the chemistries needed to minimize the chemical reactions that are causing fouling to occur. The Nalco Champion Longrun™ program combines our technologies and strategies to optimize your approach and quantify your successful treatment.