Mark Mor Are you sure that the velocity is 80 ft/sec? in your amine downstream system?. For your information, most materials will fail by simple erosion-corrosion direct impingement in such high velocity -leave alone carbon steel for which your amine downstream equipment piping is designed . Carbon steel piping would have been designed , 1 m/sec ( 3 ft/sec) i.e., more likely to be designed for a velocity < 1 m/sec ( 3 ft /sec ) in amine service. Under such high velocity - 80 ft/sec - of what you have mentioned in your querry, even water will erode the piping by direct impingement erosion -corrosion the pipine even if it is made of titanium/zirconium. I guess it could be 8 ft/sec in your amine system. C.V.Srinivasan Nishi Engineers Pvt Ltd Chennai India July 7, 2005 E-mail: nishi@vsnl.com >I am thinking to stop Filmer amine inhibtor at the overhead >line with reasons. Because the following: >• Overhead line cost is less than chemical cost. >• The velocity at the line is too high 80ft/s so the >corrosion film will go a way with the flow. >• Many fin fan leak so, that lead to that filmer amine was >not protect the downstream injection equipment. >I know you are shocked to hear that but, this is a fact and >we are not cope and past the experience. Ok it is open >discussion who not agree with my idea please give me your >input and tell why not