Influence of Various Factors on Stability of CoSPc in LPG Sweetening Process

IFP Group Technology “Sulfrex process" was used in Iran-s South Pars Gas Complex Refineries for removing sulfur compounds such as mercaptans, carbonyl sulfide and hydrogen sulfide, which uses sulfonated cobalt phthalocyanine dispersed in alkaline solution as catalyst. In this technology, catalyst and alkaline solution were used circularly. However the stability of catalyst due to effect of some parameters would reduce with the running of the unit and therefore sweetening efficiency would be decreased. Hence, the aim of this research is study the factors effecting on the stability of catalyst.

Authors:

• Ali Samadi Afshar
• Hamed Harrafi
• S.M.Javad Gharib Zahedi

Keywords:

• sulfonated cobalt phthalocyanine
• mercaptans
• stability
• catalyst
• sulfur.

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