A generally accepted beneficial use of raw wellhead gas is combustion for power generation. In some cases, it can be burned in an engine or turbine to recover the energy as mechanical or electrical power. While this is a possibility, there are some key considerations which need to be addressed.
There is a calculation that engine manufacturers use that takes into consideration all the relevant properties of a particular gas composition to produce a single value, commonly referred to as the “methane number” or “methane index” of the gas. The methane number indicates the “quality” of the gas, the higher the methane number, the better the quality of that gas. Gas with a low methane number will cause major issues, including engine derate (poor efficiency), engine failures, increased maintenance, and reduced engine life. Heavy components and contaminants which are commonly present in distributed gas have a major impact on methane number, significantly reducing it.
Distributed gas is incredibly prone to variation across all parameters, including composition, LHV, pressure, flow, and temperature. Machinery such as that for power generation is intolerant to change, where typical response to variations in gas parameters is equipment shut down.
Our suite of fuel conditioning systems process raw gas into a dry, consistent fuel that improves engine efficiency and engine life as well as reducing maintenance and risk of engine failures. GTUIT’s patent-pending technology acts like a fuel filter for raw fuel gas, producing consistent quality gas regardless of flow or ambient conditions.
Based on raw gas parameters, composition and flow rate, the correct combination of GTUIT Technology can be specified to meet your requirements.
GTUIT’s patent-pending technology acts like a fuel filter for raw fuel gas, producing consistent quality gas regardless of flow or ambient conditions.
Measured Gas Heating Value Rate of Change