Measuring and testing – Sampler – sample handling – etc. – With constituent separation
Reexamination Certificate
2005-07-26
2005-07-26
Cygan, Michael (Department: 2855)
Measuring and testing
Sampler, sample handling, etc.
With constituent separation
C073S863240, C073S863250, C073S031030, C096S138000
Reexamination Certificate
active
06920802
ABSTRACT:
A method and apparatus are provided for adsorbing surface-active compounds, such as corrosion inhibitors and water, from pressurized gas streams utilizing existing gas pipeline sampling valves. The apparatus includes an adsorption trap assembly containing an adsorption material packing, such as silica gel, fixedly positioned to selectively adsorb any surface-active compound(s)or water in the gas stream passing through the trap. After sampling, the adsorption material packing is removed and treated to desorb any entrained compound(s) for recovery, testing and identification. The method and apparatus have particular utility in determining the presence of corrosion inhibitors that have been added to petroleum pipelines upstream of the sampling point(s).
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Web page, http://www.petroleum-analyzer.com/product/PSPIlab/wettest.htm , copyright 2001, no month.
Abelman ,Frayne & Schwab
Cygan Michael
Saudi Arabian Oil Company
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