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US 9,309,171 B2Granted
Process for recovering olefins from manufacturing operations
AssigneeMembrane Technology and Research, Inc.
InventorPaul Su
Life of this patent
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AssigneeMembrane Technology and Research, Inc.
InventorPaul Su
Estimating the term…
A process for treating an effluent gas stream arising from a manufacturing operation that produces an olefin or a non-polymeric olefin derivative. The process involves cooling and condensing the effluent gas stream, which comprises an olefin, a paraffin, and a third gas, to produce a liquid condensate and an uncondensed (residual) gas stream. Both streams are then passed through membrane separation steps. The membrane separation of the uncondensed gas stream results in an olefin-enriched stream and an olefin-depleted stream. The olefin-enriched stream is recirculated within the process prior to the condensation step. The membrane separation of the condensate also results in an olefin-enriched stream, which may be recycled for use within the manufacturing operation, and an olefin-depleted stream, which may be purged from the process.
A process for treating an effluent gas stream arising from an operation that manufactures an olefin, said effluent gas stream comprising an olefin, a paraffin and a third gas, the process comprising the steps of:
A process for treating an effluent gas stream arising from an operation that manufactures a non-polymeric olefin derivative, said effluent gas stream comprising an olefin, a paraffin and a third gas, the process comprising the steps of:
A process for treating an effluent gas stream arising from an operation that manufactures an olefin, said effluent gas stream comprising an olefin, a paraffin and a third gas, the process comprising the steps of:
A process for treating an effluent gas stream arising from an operation that manufactures a non-polymeric olefin derivative, said effluent gas stream comprising an olefin, a paraffin and a third gas, the process comprising the steps of:
Dependencies are inferred from the claim text.