Process and apparatus for separating a gas mixture with emergency operation
AssigneeLinde Aktiengesellschaft
InventorsGerhard Zapp, Christian Kunz
Life of this patent
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Abstract
The process and the apparatus serve for separating a gas mixture in a separation plant. A feed gas (18) is introduced into a compressor system (6, 16) and then into the separation plant. In the event of loss or partial loss of the compressor system (6, 16) of the first feed gas compressor (6), a first auxiliary stream (91, 92) which has approximately the composition of the first product stream or approximately the composition of the feed gas is compressed (78, 89) to at least approximately the first pressure and is recirculated to the separation plant.
Claims16
In a process for separating a gas mixture in a separating plant comprising compressing feed gas (18) to a first pressure in a compressor system (6, 16) and introducing the compressed feed gas at least in part into the separation plant to produce at least a first product stream (91, 92) and wherein the process experiences at least a partial loss of function of the compressor system (6, 16), the improvement comprising bringing at least a first auxiliary stream having approximately the composition of the first product stream or approximately the composition of the feed gas (78, 89) to at least approximately the first pressure, and recirculating the resultant first auxiliary stream to the separation plant.
An apparatus for separating a gas mixture having a compressor system and a separation plant, said apparatus having a feed gas line connecting an outlet of the compressor system to an inlet of the separation plant, an auxiliary line (91, 92) for introducing an auxiliary stream which has approximately the composition of a first product stream of the separation plant or approximately the composition of the feed gas, and a control device for shutting off the auxiliary line in the steady state operating mode of the apparatus and for opening the auxiliary line (91, 92) in response to a loss or partial loss of the compressor system (6, 16).
A process for separating a gas mixture in a separating plant in which feed gas (18) is compressed to a first pressure in a compressor system (6, 16) and is then introduced at least in part into the separation plant in which, in usual operating mode, at least a first product stream (91, 92) is produced, characterized in that in the event of loss or partial loss of the compressor system (6, 16) a first auxiliary stream which has approximately the composition of the first product stream or approximately the composition of the feed gas is brought (78, 89) to at least approximately the first pressure and is recirculated to the separation plant.
Dependencies are inferred from the claim text.