March 2008

Columns

HP Reliability: Vent gas compressor selection

Energy conservation is of ever-increasing importance to process plants from the smallest to the largest. Gas streams that were flared a decade ago are now often recompressed and recycled back to the ..

Bloch, Heinz P., Hydrocarbon Processing Staff

Energy conservation is of ever-increasing importance to process plants from the smallest to the largest. Gas streams that were flared a decade ago are now often recompressed and recycled back to the suction vessel or sent to furnace heaters and other energy consumers. Depending on flow and compression ratio, a wide range of compressor configurations, both positive displacement and dynamic, could be considered. It should be noted, however, that the economic justification and return on investment calculations for such projects are often based on cost-estimating manuals that list the least expensive compression machinery. We have always expressed the view that only a thorough life cycle co

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