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In many shale-gas plays, especially wet- and/or condensate-rich shale gas plays, only raw and heavy shale gas is available as fuel for compressor drives and power generation turbines. As a result of the considerable richness (High Btu Value) of the raw gas in such shale-gas plays, operators are finding it increasingly challenging to meet the regulatory requirements on the emissions levels for the local compressor stations apart from having to run their engines running on substantial de-rates especially for the larger HP range machines. In addition, heavy hydrocarbons rich gas can damage or foul engine components, causing mechanical reliability issues & reduced compressor/engine efficiencies, even leading to engine or turbine shutdown. The immediate impact of this is loss of gas and oil production until the components are replaced or fixed. This paper describes the use of unique reverse-selective membranes which preferentially removes heavy hydrocarbons components from the raw shale-gas to produce clean fuel gas at these sites. Numerous fuel gas conditioning units have been installed in several shale-gas plays across the country by companies like EQT Midstream (Marcellus and Devonian), Peregrine Pipeline (Barnett Shale) and in the Eagle Ford shale area for reducing the heavy & sour contents from the fuel gas & subsequently also meet the emissions requirement on the VOC levels. These systems have no moving parts, are designed for simple, unattended operation and are virtually maintenance-free. By effectively reducing the heavy hydrocarbons content, Membrane Fuel Gas Conditioning Units reduces the volume of unburned VOC’s emissions caused due to incomplete combustion of hydrocarbons in the firing chamber. These units have been used to fix derate and high maintenance problems due to poor fuel gas quality for Wartsila, Caterpillar, Waukesha, Superior and other reciprocating engine makers and also for turbine fuel gas conditioning. Skids have been used to produce from 0.1
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List Price $195.00