SPECIALREPORT BONUSREPORT PROSEAL（SPECIALREPORT BONUSREPORT PROSEAL）.pdfVIP

MAY 2012 HPIMPACT SPECIALREPORT BONUSREPORT Industrial valve MAINTENANCE CORROSION CONTROL market growing RELIABILITY Prevention and China hungry New methods increase monitoring are key for thermoplastics unit and equipment to mitigating plant availability failures www.HydrocarbonP Originally appeared in: May 2012, pgs 53-55. Used with permission. Improve seal designs for ‘dirty’ services Environmental rules require increased reliability for pumps in flue-gas applications H. P. BlocH, P. E., Consulting Engineer, Westminster, Colorado; and T. Grove, AESSEAL Inc., Rockford, Tennessee he Cross-State Air Pollution Rule (CSAPR) is at the variables impact the stability of the seal’s fluid film. Adding center of the regulatory debate in the US. The Environ- proprietary sorbents with reagent enhancers or additives and T mental Protection Agency (EPA) rule replaces the 2005 the resulting unknown fluid properties make seal performance Clean Air Interstate Rule (CAIR), tightening caps on sulfur even more unpredictable. oxides (SOx) and nitrogen oxides. Regardless of the Appeals As detailed by Mohamad Hassibi, Chemco Systems, LP, “For Court stay in early January, equipment reliability is now more SO2 capture with ground limestone in wet FGD, much of the important with regard to efficient utilization of existing pol- coarser particles never react with the gases. Because of a short lution control technologies. contact period, many of these particles are basically was