System for separating gas
AssigneeCri, Ehf
InventorsEmeric SARRON, Húni SIGHVATSSON, Ásgeir ÍVARSSON
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Abstract
An improved system for separating gas from a process stream by providing a stripping unit at the overhead stream of a fractionation column to selectively and effectively remove the gas using a stripping fluid without providing a dedicated light-ends separations unit. The stripper unit may be connected to the reflux drum at the overhead stream. The system for separating gas further achieves greater thermodynamic efficiency by means of a split column design using mechanical vapor recompression with the reboiler and condenser integrated in a falling-film evaporator- or thermosiphon-type vapo-condenser.
Claims20
A system for separating a gas from a process stream, the system comprising:
- a separation unit configured to receive a process stream of a chemical process and to separate at least one component of the process stream, the separation unit comprising a heat exchanger located at an overhead portion of the separation unit and receiving an overhead stream of the process stream from the overhead portion of the separation unit, the heat exchanger being configured for condensing the overhead stream of the process stream;
- and
- a stripper unit configured to receive the condensed overhead stream of the process stream from the heat exchanger and being configured for separating the gas from the condensed overhead stream of the process stream by introducing at least one stripping fluid thereunto.
A system for separating a gas from a process stream, the system comprising:
- a separation unit configured to receive a process stream of a chemical process and to separate at least one component of the process stream, the separation unit comprising a heat exchanger located at an overhead portion of the separation unit and receiving an overhead stream of the process stream from the overhead portion of the separation unit, the heat exchanger being configured for condensing the overhead stream of the process stream;
- a drum configured to receive the condensed overhead stream of the process stream and arranged downstream of the heat exchanger;
- and
- a stripper unit configured to receive the condensed overhead stream of the process stream from the drum and being configured for separating the gas from the condensed overhead stream of the process stream by introducing at least one stripping fluid thereunto.
A method for separating a gas from a process stream, the method comprising the steps:
- providing a separation unit configured to receive a process stream of a chemical process and to separate at least one component of the process stream,
- providing a heat exchanger at an overhead portion of the separation unit, the heat exchanger being configured for condensing an overhead stream of the process stream;
- and
- providing a stripper unit configured to receive the condensed overhead stream of the process stream from the heat exchanger.
Dependencies are inferred from the claim text.