ADVANCED EXTRACTION TECHNOLOGIES, INC.

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Ammonia Purge Gas Unit (APGU)

The Ammonia Purge Gas Unit (APGU) utilizes the patented AET non-cryogenic absorption process to separate methane and heavier components from the hydrogen and nitrogen present in ammonia plant purge gases.  The purified H2/N2 leaves the absorber column with minimal pressure drop.  The absorbed methane and heavier components are flashed off from the solvent by reducing the pressure of the absorber bottoms stream.  The separated gases leave as the fuel gas product.  The liquid from the proven heatless flash regeneration step is returned to the top of the methane absorber as lean solvent.

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