Natural Gas Treatment for Delivery to the Gas Transmission System

• reduction of the raw gas dew point for water and hydrocarbons, content of sulphur-bearing impurities and carbon dioxide to meet the requirements for supply to the gas transport system in accordance with STO Gazprom 089-2010, as well as ensuring prevention of the formation of condensate and gas-hydrate plugs, compliance of the treated gas with the necessary requirements of the Customer's specification;
• For natural gas with low heavy hydrocarbon content — providing only dehydration from water while maintaining the calorific value of the gas;
• For associated petroleum gas with high heavy hydrocarbon content — simultaneous dehydration from both water and hydrocarbons with adjustment of calorific value and Wobbe number;
• Reduction of C₄₊ content by a factor of 2.5–6.0. The residual content is less than 2% vol.;
• REDUCTION of C₅₊ content by a factor of 6–12. The residual content is less than 0.5% vol.

The membrane technology makes it possible to dehydrate gas without restrictions on the content of heavy hydrocarbons and gases containing sulphur compounds.

The Technology Developed Provides

• Dehydration of associated petroleum gas to meet requirements for transportation to the gas processing plant for further processing, while significantly reducing heating costs during transportation
• Dehydration of natural gas as it is withdrawn from storage facilities prior to transportation to consumers
• The use of membrane gas dehydration units instead of (or in addition to) adsorption dehydration units in gas processing plants