NOVELTY - Recovering greater than 3C rich liquefied petroleum gas (LPG) stream and a high purity hydrogen stream from a hydrocarbon-containing feed-stream comprising hydrogen and 1-2C and greater than 3C hydrocarbons, involves: the integrated use of two rubber based polymeric membrane separation units to produce LPG stream; pure hydrogen stream and a low hydrogen/1 or 2C enriched stream.    USE - For recovery of a 3C+ rich liquefied petroleum gas (LPG) stream and a high purity hydrogen stream (claimed).    ADVANTAGE - The liquefied petroleum gas (LPG) can be recovered from various streams using a multiple membrane recovery process producing hydrogen stream at high yield and high purity and a 3C+ LPG stream at high yield with low energy expenditure. The process produces 3C+ rich liquefied petroleum gas (LPG) product stream having a 3C+ purity of at least 70 mol.%. The process is improved LPG recovery process using an integration of two membrane separation units producing 3 streams: a high purity LPG stream, a high purity hydrogen stream and hydrogen lean/enriched 2C- stream.    DETAILED DESCRIPTION - Recovery of a 3C+ rich liquefied petroleum gas (LPG) stream and a high purity hydrogen stream from a hydrocarbon-containing feed stream comprising hydrogen and 1C, 2C and 3C+ hydrocarbons, involves: (a) feeding the hydrocarbon feed stream into a first membrane separation unit where the hydrocarbon-containing feed stream is contacted with a first side of at least one first rubbery polymer membrane; (b) retrieving a first retentate product stream, which has a higher hydrogen mol.% than the hydrocarbon-containing feedstream from the first side of the first rubbery polymer membrane and retrieving a first permeate product stream which has a higher 3C+ mol.% than the hydrocarbon-containing feedstream from a second side of the first rubbery polymer membrane; (c) optionally feeding the first permeate product stream to a compressor where the first permeate product stream is raised in pressure; (d) feeding the higher pressure first permeate product stream to a knockout drum; (e) retrieving a liquid 3C+ rich LPG product stream from the knockout drum, where the 3C+ rich LPG product stream has a higher 3C+ mol.% than the first permeate product stream; (f) retrieving a vapor 2C- rich stream from the knockout drum, where the 2C- rich stream has a higher 2C- mol.% than the first permeate product stream; (g) feeding 2C- rich stream into a second membrane separation unit where the 2C- rich is contacted with a first side of at least one second rubbery polymer membrane; (h) retrieving a second retentate product stream which has a higher 2C- mol.% than the 2C- rich stream from the first side of the second rubbery polymer membrane and retrieving a second permeate product stream which has a higher 3C+ mol.% than the 2C- rich stream from a second side of the second rubbery polymer membrane; (i) optionally feeding at least a portion of the second permeate product stream to a compressor where the second permeate product stream is raised in pressure; and (j) mixing at least a portion of the second permeate product stream with the first permeate product stream at a point upstream of the compressor.