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METHANE GAS RECOVERY AND USAGE SYSTEM FOR COALMINES, MUNICIPAL LAND FILLS AND OIL REFINERY DISTILLATION TOWER VENT STACKS
METHANE GAS RECOVERY AND USAGE SYSTEM FOR COALMINES, MUNICIPAL LAND FILLS AND OIL REFINERY DISTILLATION TOWER VENT STACKS
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机译:煤层气,市政填土和炼油厂蒸馏塔顶气的甲烷气回收利用系统
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摘要
Ventilation Air Methane (VAM) exhaust gases from coal pre-mine gob wells, land fills and oil refinery (Installations) vent stacks are used, after adequate compression, for energizing a high-speed gas turbine. The convoluting gas discharge causes a first separation stage by stratifying of heavier non-combustible and lighter combustible gas components that exit from the turbine in opposite directions, the heavier components having a second stratifying separation in a vortex tube to separate non-combustible, heaviest pollutants from non-combustible medium-heavy components. The noncombustible, medium components exit a vortex tube open end to atmosphere. The lighter combustible, pollutants (high purity Methane) effected in the first separation are piped to the Installation's engine air intake for re-combustion, thereby reducing the Installation's Methane pollution and improving its fuel economy. The non-combustible, heaviest pollutants from the second separation stage are piped to air filter assemblies. This gas stream convoluting at a high-speed through the top stator-vanes of the air filters, centrifugally separates the coalescent water, coal/carbon or silico-ethanes or sulfur particles, (PM) respectively, which collect at the bottom of the bowl, wherein it is periodically released to the site. Whereas, the heaviest gases: traces of hydrocarbons, carbon dioxide & micron size carbon, silico-ethanes or sulfur particles, respectively are released to the atmosphere.
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