FACILITY FOR PRODUCING LIQUID COAND BIOMETHANE WITH A MEANS FOR PREVENTING THE BUILD-UP OD HYDROGEN AND OXYGEN

The invention relates to a facility for producing liquid CO2 and biomethane, comprising :- a unit for producing biogas;- at least one unit for the membrane separation of biogas to produce biomethane and a gaseous mixture M1 mainly comprising carbon dioxide;- a unit for cryogenically distilling the g...

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Bibliographische Detailangaben
Hauptverfasser:	ZICK, Golo, BARRAUD, François, GRABIE, Véronique, VALENTIN, Solène
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL BLASTING CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS LIQUEFIED PETROLEUM GAS LUBRICANTS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING METALLURGY MIXTURES BY PRESSURE AND COLD TREATMENT NATURAL GAS PEAT PERFORMING OPERATIONS PETROLEUM, GAS OR COKE INDUSTRIES PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRIGERATION OR COOLING SEPARATION SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a facility for producing liquid CO2 and biomethane, comprising :- a unit for producing biogas;- at least one unit for the membrane separation of biogas to produce biomethane and a gaseous mixture M1 mainly comprising carbon dioxide;- a unit for cryogenically distilling the gaseous mixture M1 to produce liquid CO2 and a gaseous mixture M2 comprising carbon dioxide, methane, oxygen and hydrogen; - one or more membranes located in the flow of the gaseous mixture M2 to separate the methane from the oxygen-hydrogen mixture contained in the gaseous mixture M2; - a means for recirculating the methane originating from the gaseous mixture M2 to the membrane separation unit; and - a vent for removing the oxygen-hydrogen mixture originating from the gaseous mixture M2.