Role and Effect of Temperature on LPG Sweetening Process
In the gas refineries of Iran-s South Pars Gas
Complex, Sulfrex demercaptanization process is used to remove
volatile and corrosive mercaptans from liquefied petroleum gases by
caustic solution. This process consists of two steps. Removing low
molecular weight mercaptans and regeneration exhaust caustic. Some
parameters such as LPG feed temperature, caustic concentration and
feed-s mercaptan in extraction step and sodium mercaptide content in
caustic, catalyst concentration, caustic temperature, air injection rate
in regeneration step are effective factors. In this paper was focused on
temperature factor that play key role in mercaptans extraction and
caustic regeneration. The experimental results demonstrated by
optimization of temperature, sodium mercaptide content in caustic
because of good oxidation minimized and sulfur impurities in
product reduced.
[1] P. Marache, "Operating Instruction. AXENS (IFP group technology),"
2003
[2] P. Marache, "Process Data Book. AXENS (IFP group technology),"
2003
[3] Liu, Ruiting, Xia, Daohong, Xiang, Yuzhi, "Oxidation of Sodium
Mercaptide with Sulfonated Cobalt Phthalocyanine as Catalyst,"
College of Chemistry & Chemical Engineering, University of
Petroleum, Dongying, 257061, China, 2003
[4] Z. Mallaki, et al., "Revamping of Merox LPG Sweetening Unit for
Deeper Desulfurization," M.Sc Thesis, Iran, Sharif University of
Technology, Chemical& Petroleum Eng. Dept, 2007
[5] S. Mehmandoost, P. Hejaz, " Propane Treatment unit, Operating
Manual, Basis of Design & Unit Operating Considerations, " Iran South
Gas Field: Phases 9&10, 2005
[6] S. Mehmandoost, P.Hejaz, "Butane Treatment unit, Operating Manual.
Basis of Design & Unit Operating Considerations," Iran South Gas
Field: Phases 9&10, 2005
[7] E.I. Kozliak, et al., "Mechanism of the CoSPc Catalyzed Auto oxidation
of Aliphatic Thiols,: Chemistry Dept., University of North Dakota,
Grand Forks, ND 58202, 2003
[1] P. Marache, "Operating Instruction. AXENS (IFP group technology),"
2003
[2] P. Marache, "Process Data Book. AXENS (IFP group technology),"
2003
[3] Liu, Ruiting, Xia, Daohong, Xiang, Yuzhi, "Oxidation of Sodium
Mercaptide with Sulfonated Cobalt Phthalocyanine as Catalyst,"
College of Chemistry & Chemical Engineering, University of
Petroleum, Dongying, 257061, China, 2003
[4] Z. Mallaki, et al., "Revamping of Merox LPG Sweetening Unit for
Deeper Desulfurization," M.Sc Thesis, Iran, Sharif University of
Technology, Chemical& Petroleum Eng. Dept, 2007
[5] S. Mehmandoost, P. Hejaz, " Propane Treatment unit, Operating
Manual, Basis of Design & Unit Operating Considerations, " Iran South
Gas Field: Phases 9&10, 2005
[6] S. Mehmandoost, P.Hejaz, "Butane Treatment unit, Operating Manual.
Basis of Design & Unit Operating Considerations," Iran South Gas
Field: Phases 9&10, 2005
[7] E.I. Kozliak, et al., "Mechanism of the CoSPc Catalyzed Auto oxidation
of Aliphatic Thiols,: Chemistry Dept., University of North Dakota,
Grand Forks, ND 58202, 2003
@article{"International Journal of Chemical, Materials and Biomolecular Sciences:62327", author = "Ali Samadi Afshar and Sayed Reaza Hashemi", title = "Role and Effect of Temperature on LPG Sweetening Process", abstract = "In the gas refineries of Iran-s South Pars Gas
Complex, Sulfrex demercaptanization process is used to remove
volatile and corrosive mercaptans from liquefied petroleum gases by
caustic solution. This process consists of two steps. Removing low
molecular weight mercaptans and regeneration exhaust caustic. Some
parameters such as LPG feed temperature, caustic concentration and
feed-s mercaptan in extraction step and sodium mercaptide content in
caustic, catalyst concentration, caustic temperature, air injection rate
in regeneration step are effective factors. In this paper was focused on
temperature factor that play key role in mercaptans extraction and
caustic regeneration. The experimental results demonstrated by
optimization of temperature, sodium mercaptide content in caustic
because of good oxidation minimized and sulfur impurities in
product reduced.", keywords = "Caustic regeneration, demercaptanization, LPG sweetening, mercaptan extraction, temperature.", volume = "5", number = "7", pages = "637-3", }