Cryogenic purification of biogas with withdrawal at an intermediate stage and external solidification of carbon dioxide

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United States of America Patent

PATENT NO 12072144
APP PUB NO 20220397345A1
SERIAL NO

17836139

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Abstract

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A combined plant for cryogenic separation and liquefaction of methane and carbon dioxide in a biogas stream, including a mixing means, a compressor, a first exchanger, a distillation column, a second exchanger, a separating means, an expanding means, and a separator vessel. Wherein, the mixing means is configured such that the recycle gas is the overhead vapour stream, and the first exchanger and the expanding means are combined.

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Patent Owner(s)

Patent OwnerAddress
L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE75007 PARIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Tovar, Ramos Jorge Ernesto Cachan, FR 11 3

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