Gas Processing & Vapor RecoveryCleaner and More Revenue

Application Notes

Power Generation

Natural gas that comes from oil wells is typically termed “Associated Gas (AG)” or “Hot natural Gas (HNG)”. HNG contains methane, ethane, propane and other heavier hydrocarbons such as butanes, pentanes, hexanes and etc. In addition, raw natural gas contains water vapour, hydrogen sulphide (H2S), carbon dioxide (CO2), nitrogen (N2) and other compounds. Typically HNG is very high in heating value and low in methane number. After removing the acid gas and excess moisture, this gas is often used for power generation. If the methane number is too low and heating value is high, this gas is not suitable for most gaseous fuel reciprocating engines (or gas engines). Excessive amounts of the heavier hydrocarbons leads to potential issues like detonation, carbon deposits, and gumming eventually causing permanent damage and loss of productivity. Furthermore, engines are required to operate at lower power settings when running on associated gas lead ing to incr ease oil consumption, higher exhaust temperatures, increased wear and tear resulting in higher maintenance cost. When engines are running derated, this leads to increased exhaust temps, increased oil consumption, excessive wear, and higher maintenance cost, not the other way around.

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Liquid Recovery

Associated gas contains methane, ethane, propane and more importantly other heavier hydrocarbons such as butane, pentanes, hexanes, heptanes and etc. Heavier hydrocarbons available in the gas can be separated and the mixture can be sold in the market at a good price. Further separation and resultant completed products will lead to even more potential profits. The liquid condensates typically are more valuable than the lighter ones. In US, the natural gas exploration companies are more interested to drill for heavier hydrocarbon than the lighter ones.

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Barge Degassing Vapor Recovery

Recover barge vapors with the Maximum Achievable Control Technology (MACT). Employ the safe and efficient method patented by Petrogas to economically recover liquid vapors. Handle any level of emissions and any variety of products with one system that is designed to operate unmanned with remote start/stop controls.

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Lean Oil Absorption


  • Recover vapor contaminants emitted during loading operations of tank trucks, railcars, barges, and ships.
  • Storage terminal and pipeline terminal vapor contaminants emitted from tanks during filling and breathing due to ambient temperature changes.
  • Vapors from process plant vent, flare and other off gases.
  • Remove heavy hydrocarbon vapors for clean burning fuel gas systems.

Read more: Lean Oil Absorption