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Wellhead shale gas energy (BTU) content and methane number (measure of gas to cause knocking) varies due to the quantity of heavy hydrocarbons present in the fuel and the region of the shale play. Shale gas delivery from the fracking site (wellhead) to the upgrading facility is typically facilitated by compressors driven by engines fuelled with the gas that is being transported. High energy content fuel can place excessive demands on the cooling system and materials in the combustion chamber of the engine when combusted. Additionally, the presence of heavy hydrocarbons has a tendency to pre-ignite (i.e. lower methane number) the fuel during compression in the engine cylinder. The combination of high BTU and low MN results in lower loads and efficiency and in some cases the engine is not able to run at all, resulting in increased operating and maintenance costs. DCL has developed a system that conditions the fuel and allows the engine to run at higher loads and efficiency. The system works by lowering the BTU of the gas and increasing the MN of the gas by using a catalytic process that is driven by heat present in the engine exhaust, thus making the operating cost of the system minimal. The catalyst used in the catalytic process is active and selective for converting heavy hydrocarbons, and is also sulphur resistant. Testing results show that the increase in Methane Number as high as 10 can be achieved using optimum catalyst design and operating parameters. A system capable of operating within the constraint of the remote site can be designed and overall an economically viable system can be provided.
Your Price $195.00
List Price $195.00