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Mubarek Gas Processing Plant

Mubarek Gas Processing Plant. Issues of the flared gas utilization with high contamination of acid components. Presented by : Mr. Elmurod Kurbanov Chief Engineer. Mubarek Gas Processing Plant.

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Mubarek Gas Processing Plant

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  1. Mubarek Gas Processing Plant Issues of the flared gas utilization with high contamination of acid components Presented by: Mr.ElmurodKurbanov Chief Engineer

  2. Mubarek Gas Processing Plant Mubarek Gas Processing Plant is an unitary subsidiary of Uzneftegazdobycha Joint Stock Company operating under the Uzbekneftegaя National Holding Company. The Mubarek GPP removes acidic content (hydrogen sulfide and carbon dioxide) and dehydrates natural gas producing technical sulfur and stabilized gas condensate, with parallel production of liquefied propane-butane mixture.

  3. Mubarek Gas Processing Plant Mubarek GPP is a Category 1 enterprise contaminating the atmosphere with harmful emissions. The design of technological blocks envisages flaring of acidic gases. Products of combustion as a result of flaring gas vented from technological units (expander gases, flash gases and de-ethanization gases) and of burning resurgent gas from the Clauss process in sulfur production plants’ afterburners are emitted into the atmosphere.

  4. Mubarek Gas Processing Plant Maximum admissible emission of contaminants (in accordance with the draft regulation on MAEs from MGPP sources) :

  5. PROCESS DIAGRAM FOR LOW PRESSURE FLARE SYSTEM OLD FLARE SYSTEM NEW FLARE SYSTEM

  6. Mubarek Gas Processing Plant Flaring of products at MGPP’s process units Source – low temperature separation units Flow rate – 0.008 thousandm3 per hour. Composition, % vol. Source – desulfurization expansers. Flow rate – 3.1 thousandm3 per hour (flare makeup) Source – desorption units of sweet gas desulfurization units Flow rate – 75.5 thousandm3 per hour Composition, % vol.

  7. Mubarek Gas Processing Plant Flaring of products at MGPP’s process units Source - Condensate Stabilisation Unit (degassing). Flow – 0.3 thousandm3 per hour Composition, % vol. Source – Plant Nr 14 (fuel gas) flare makeup. Flow rate – 16.5 thousandm3 per hour. Composition, % vol.

  8. Gross Emissions, thousand tons

  9. Specific Emissions, thousand tons/bln m3

  10. MGPP’s environmental facilities Mubarek Gas Processing Plant Sweet acidic gas concentration unit Capacity of the sweet acidic gas concentration unit: 20.0 thousand m3per hour. Clauss process is used to produce 10.0 thousand tons of sulphur from concentrated acidic gases per year. Plant for cleanup of tail gases from Clauss Process using Sulphren method A process for cleanup of residual tail gases from the U-351 Clauss plant producing sulphur has been introduced in order to reduce emissions. Utilization of tail gases from the Clauss process that used to be burned in afterburners is organised using Sulphren Plant with a capacity of 17.0 thousand tons of sulphur per year Propane Refrigeration Cycle The plant includes a propane refrigeration plant generating cold for the low-temperature separation units of the PRC. As a result of PRC commissioning, ammonia emissions intrinsic to ammonia based refrigeration units have been substantially reduced

  11. MGPP’s environmental measures Mubarek Gas Processing Plant • The flaring system has been rehabilitated, introducing two high pressure and two low pressure flares in order to optimize utilization of emissions • Clauss and Sulphren process catalysts are used at sulphur production plants that constitute the source of the most harmful emissions; these processes ensure maximum sulphur extraction and minimum sulphur dioxide content in combustion products • A system forwarding expanse gases as a fuel to afterbuners at sulphur production plants was introduced in order to maximize utilization of process emissions

  12. Planned flaring reduction activities Mubarek Gas Processing Plant 1.Reduction of greenhouse gas content in process emissions from MGPP’s units can only be ensured by latest technologies. For example, it should be feasibly to look for and to introduce a technology allowing to extract CO2 from the gas flared, provided such technology proves economically viable 2. Installation of a unit for automatic monitoring of composition of gases coming from Clauss Process, with automatic adjustment of acidic gas to air ratio at the inlet

  13. Mubarek Gas Processing Plant Planned flaring reduction activities 3.Construction of a unit for cleanup of tail gases from the Clauss process featuring adsorption at the catalyst’s cold layer. The process is similar to the Sulphren process. The only difference is that in Sulphren process, catalyst regeneration is done using heated tails gases from the Clauss process while the cold adsorption process takes heat required for sulphur desorbtion from the catalyst, using part of process gas coming from the Clauss process’s generator-reactor

  14. Mubarek Gas Processing Plant Issues preventing complete elimination of flaring at Mubarek GPP The technical facilities available at Mubarek GPP do not allow to stop the practice of flaring due to H2S content being up to 4.0% and CO2 content being up to 94%. Mubarek GPP looks forward to receive active support from the GGFRto solve this issue

  15. Thank you for your attention! Mubarek Gas Processing Plant

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