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Title: Regeneration Of Molecular Sieve Natural Gas Dryers For Ngv Fueling Station
Author: Robert D. Wilson
Source: American Gas Association 1994
Year Published: 1994
Abstract: Molecular Sieve dehydrators serve as a cost effective mechanism for achieving pressure dew points required for NGV fueling operations. A study conducted by Brooklyn Union, however, confirmed that molecular sieve material typically utilized in NGV applications, exhibits an affinity for mercaptan. The study revealed that unlike typical mole sieve adsorption applications involving separation by molecular size differences, mercaptan co-adsorption is primarily a surface phenomena. This surface phenomena is induced by polarity differences between the sieve material and the polar mercaptan compound, coupled with partial catalytic oxidation on the sieve support structure.

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