A LIST OF COMMERCIAL PLANTS OF DMC TECHNOLOGY 1. Tengiz crude demercaptanization plant (DMC-1 process). Settlement Karaton, Atyrau region, Kazakhstan, JV "Tengizchevroil". In operation since 1995 (1 line), 1996 (2 line). Capacity 2 x 4 MMt/yr Catalyst - IVKAZ Mercaptan sulfur content (methyl- and ethyl-): before treatment - 0.026 % mass (260 ppm) after treatment - 0.0002 % mass (2 ppm) The design is developed by "Bechtel Co.", England. The plant has been mounted using new equipment by "Brown and Root Co". 2. n-Pentane demercaptanization plant (DMD-2 process). Novokuibyshevsk, Novokuibyshevsk Petro-chemical plant. Central gas fractionating plant. In operation since 1974. Capacity - 120 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.03 % mass (300 ppm) after treatment - 0.0005 % mass (5 ppm) The design is developed by Design office of Novokuibyshevsk petro-chemical plant.The plant has been mounted using existing equipment. 3. Demercaptanization plant for broad fraction of light hydrocarbons (DMD-2 process). Salavat, Industrial association "Salavatnefteorgsintez", Central gas fractionating plant. In operation since 1975. Capacity - 400 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.5 % mass (5000 ppm) after treatment - 0.002 % mass (20 ppm) The design is developed by Salavat branch office of Bashgiproneftekhim. The plant has been mounted using existing equipment. 4. Demercaptanization plant for a broad fraction of light hydrocarbons (DMD-2 process). Salavat, Industrial association "Salavatnefteorgsintez" Absorption Gas Fractionating plant. In operation since 1976. Capacity - 600 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.3 % mass (3000 ppm) after treatment - 0.0005 % mass (5 ppm) The design is developed by Salavat branch office of Bashgiproneftekhim. The plant has been mounted, using existing equipment. 5. Demercaptanization plant for butane-butylene and pentane-amylene fractions (DMD-2 process). Ryazan, Ryazan Refinery, Gas-fractionating plant. In operation since 1985. Capacity - 125 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.3 % mass (3000 ppm) after treatment - 0.001 % mass (10 ppm) The design is developed by Design office of Ryazan Refinery. The plant has been mounted using existing equipment. 6. Demercaptanization plant for liquefied gases (DMD-2 process). Astrakhan, Astrakhan Gas-Processing plant, a combined unit of gas condensate processing. In operation since 1992. Capacity - 400 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.7 % mass (7000 ppm) after treatment - 0.003 % mass (30 ppm) The design is developed by Scientific and production association "Lenneftekhim". The plant has been mounted using new equipment. 7. Demercaptanization plant for butane-butylene fraction (DMD-2 process). Samara, Refinery, Gas fractionating plant. In operation since 1974. Capacity - 130 000 t/yr. Catalyst - IVKAZ. Mercaptan sulfur content: before treatment - 0.15 % mass (1500 ppm) after treatment - 0.002 % mass (20 ppm) The design is developed by Design office of Samara refinery. The plant has been mounted using existing equipment. 8. Plant for sulfide-alkaline waste water processing (Serox-W process). Ryazan, Ryazan Refinery. In operation since 1991. Capacity - 80 000 t/yr. Catalyst - UVKO. Sulfide sulfur content: before processing - 5000 mg/l after processing - below 1.0 mg/l The design is developed by Design office of Ryazan Refinery. The plant has been mounted, using existing equipment. 9. Plant for Karachaganak condensate demercaptanization (DMC-2 process). Orenburg, Gas-processing plant. Expected date of putting into operation 1997. Capacity - 1MMt/yr. Catalyst - UVKO-2. Total methyl- and ethylmercaptan content: before treatment - 1190 ppm after treatment - below 6 ppm The design is being developed by VNIIPIGazpererabotka, Krasnodar. 10. Plant for treating technological condensate of catalytic cracking (Serox-W process). Ufa, Ufa Refinery, plant G-43-107. In operation since - July 1995. Capacity - 20000 t/yr. Catalyst – UVKO-1. Sulfide sulfur content: before treatment - 5000 mg/l after treatment - below 20 mg/l The design was developed by Grozgiproneftekhim. 11. Plant for sulfide-alkaline waste water treatment (Serox-W process). Novokuibyshevsk, Novokuibyshevsk petro-chemical plant, Central gas fractionating plant-3. In operation since 1995. Capacity for sulfur-alkaline waste water - 2 m3/hr. Catalyst – UVKO-1. Sulfide sulfur content: before treatment - up to 6000 mg/l after treatment - below 20 mg/l The design was developed by a Design office of Novokuibyshevsk petro-chemical plant. 12. Complex demercaptanization of light petroleum fractions of crude processing Samara, Kuibyshev Refinery, ELOW-AVT-3.5. The plant was built in 1995. The expected year of putting into operation - 1995-1996. The plant includes: a unit of C3-C4 fraction treatment for 200000 t/yr (DMD-2); a unit of C5 fraction treatment for 110000 t/yr (DMD-2); a unit of C6 - 70oC fraction treatment for 310000 t/yr (DMB process); a unit of sulfide-alkaline waste water treatment for 0.2 m3/hr (Serox). Catalysts: IVKAZ, UVKO-1, UVKO-2. A design hydrogen sulfide and mercaptan concentration: C3-C4 fraction: before treatment - hydrogen sulfide - 1.0 % mass mercaptan sulfur - 0.3 % mass(3000 ppm) : after treatment - hydrogen sulfide - absent mercaptan sulfur - 0.002 % mass (20 ppm) C5 fraction: before treatment - hydrogen sulfide - 0.015 % mass mercaptan sulfur - 0.1 % mass (1000 ppm) : after treatment - hydrogen sulfide - absent : mercaptan sulfur - 0.0005 % mass (5 ppm) C6 - 70oC fraction:before treatment -mercaptan sulfur-0.08%mass(800 ppm) after treatment -mercaptan sulfur -0.0005 % mass (5 ppm) : sulfur-alkaline waste water: sulfide sulfur : before treatment - 1000 mg/l after treatment - below 20 mg/l The design was developed by JS "Samaraneftekhimproekt", Samara. The plant was built by "Salzgitter Anlagen bay", Germany. A plant for removal of low-molecular weight mercaptans from gas condensate, Orenburg, Orenburg GPZ. In operation since 1983. Capacity: for initial crude 300.000t/yr for mixture of natural mercaptans (odorant SPM) - 3.000 t/yr Degree of mercaptan removal - 60 %. The design has been fulfilled by Design and Engineering Office of Orenburg Gpz and YuzhNIIGIPROGAZ, Donetsk. The plant has been mounted using existing equipment.