Impianto e procedimento per l'upgrading di biogas

• Main Authors: ROVETA, Guido, MUSSINATTO, Adriano
• Format: Patent
• Language: Italian
• Published: 18.03.2019
• Subjects: ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; BEER; BIOCHEMISTRY; BLASTING; CHEMISTRY; COMBINED HEATING AND REFRIGERATION SYSTEMS; ENZYMOLOGY; 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; MICROBIOLOGY; MIXTURES BY PRESSURE AND COLD TREATMENT; MUTATION OR GENETIC ENGINEERING; NATURAL GAS; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; REFRIGERATION OR COOLING; SPIRITS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K; TECHNICAL GASES CONTAINING CARBON MONOXIDE; VINEGAR; WEAPONS; WINE

The plant for carrying out the biogas upgrading process comprises: a cooling and condensing column (10) equipped with a biogas feed conduit (16), a head outlet conduit (18) and a bottom outlet conduit (20) from which departs a recirculating conduit (22), flowing into the top portion of the column (10); a liquefaction column (26) into which a head outlet conduit (18) flows, from the top of which a discharge conduit (28) of incondensable gases departs, and from the bottom of which departs a discharge conduit (30) for a liquid flow, which branches into a recirculation branch (32), flowing into the top portion of the liquefaction column (26), and an outlet branch (34); a heat exchanger (40) for cooling the liquid flow in the discharge conduit (30); and a filtration device for the liquid flow in the discharge conduit (30), located downstream of the heat exchanger (40) and upstream of the division into the recirculation branch (32) and the outlet branch (34).