Abstract:
Method and apparatus for cooling a hydrocarbon stream (520) to produce an at least partially liquefied hydrocarbon stream (530). A cooled main refrigerant stream (245) is further cooled against at least a part of one or more expanded cooled pre-cooling refrigerant streams (155). A hydrocarbon stream (520) is at least partially liquefied in one or more main heat exchangers (220) against an expanded cooled main refrigerant stream (255), to provide an at least partially, preferably fully, liquefied hydrocarbon stream (530). The air inlet stream (45a) of a first gas turbine (50a) is cooled using cooling duty from the main refrigerant in the main refrigerant circuit (200) to provide a cooled air inlet stream (55a) to the first gas turbine (50a).
Abstract:
A gaseous hydrocarbon stream (10) is cooled against a first refrigerant and a second refrigerant, to produce a liquefied hydrocarbon stream (20). The first refrigerant is cycled in a first refrigerant circuit (100), comprising compressing in a first compressor train (110) comprising one or more first compressors on a common drive shaft (215). The second refrigerant is cycled in a second refrigerant circuit (200), comprising compressing in a second compressor train (210) comprising one or more second compressors on said common drive shaft (215). The common drive shaft (215) is driven with one single gas turbine (220). The single gas turbine (220) is a multiple shaft gas turbine with a shaft power for mechanical drive of at least 40 MW, comprising at least one auxiliary turbine (180) and at least one inlet air compressor (156) mechanically connected to the auxiliary turbine (180) via a first internal shaft (22), and a power turbine (190) drivingly engaged with the common drive shaft (215), which power turbine (190) is separately rotatable from the first internal shaft (22).
Abstract:
A gaseous hydrocarbon stream (10) is cooled against a first refrigerant and a second refrigerant, to produce a liquefied hydrocarbon stream (20). The first refrigerant is cycled in a first refrigerant circuit (100), comprising compressing in a first compressor train(110) comprising one or more first compressors on a common drive shaft (215). The second refrigerant is cycled in a second refrigerant circuit (200), comprising compressing in a second compressor train(210) comprising one or more second compressors on said common drive shaft (215).The common drive shaft (215) is driven with one single gas turbine (220). A first inlet air stream (225) for combustion is cooled against a stream of a chilled coolant (320) and then passed to the single gas turbine (220).
Abstract:
A gaseous hydrocarbon stream (10) is cooled against a first refrigerant and a second refrigerant, to produce a liquefied hydrocarbon stream (20). The first refrigerant is cycled in a first refrigerant circuit (100), comprising compressing in a first compressor train(110) comprising one or more first compressors on a common drive shaft (215). The second refrigerant is cycled in a second refrigerant circuit (200), comprising compressing in a second compressor train(210) comprising one or more second compressors on said common drive shaft (215).The common drive shaft (215) is driven with one single gas turbine (220). A first inlet air stream (225) for combustion is cooled against a stream of a chilled coolant (320) and then passed to the single gas turbine (220).
Abstract:
A gaseous hydrocarbon stream (10) is cooled to produce a liquefied hydrocarbon stream (20). The gaseous hydrocarbon stream (10) is cooled in one or more heat exchangers (140a) using a first refrigerant from a first refrigerant circuit (100) in which said first refrigerant is compressed in a first compressor (110) driven by a first gas turbine (120) having a first inlet air stream (125) and liquefied using a second refrigerant circuit (200) wherein a second refrigerant is compressed in a second compressor (210) driven by a second gas turbine (220) and having a second inlet air stream (225). The cooling duty available in a stream of a chilled coolant (320) is divided over at least first (340) and second (350) parts in accordance with a common input parameter, and one or both of said first and second inlet air streams (125, 225) are cooled with the chilled coolant (320), whereby the cooling duty available in the first part (340) is used to cool the first inlet air stream (125), and the cooling duty available in the second part (350) is used to cool the second inlet air stream (225).
Abstract:
The present invention provides method of operating a compressor (100), for the reduction of relief load during a blocked outlet event, and an apparatus therefore, the method comprising at least the steps of: (a) passing one or more compressor feed streams (10, 20, 30, 40) to one or more inlets (18, 28, 38, 48) of a first compressor (100), each compressor feed stream (10, 20, 30, 40) passing through a compressor feed valve (12, 22, 32, 42); (b) compressing the one or more compressor feed streams (10, 20, 30, 40) in the first compressor (100) to provide a compressed discharge stream (150) at the outlet (105) of the first compressor (100); (c) monitoring for a first indicator of a blocked outlet event of the first compressor (100); and (d) instructing the closure of the compressor feed valves (12, 22, 32, 42) when the first indicator of the first compressor (100) blocked outlet event is detected.
Abstract:
The present invention provides method of operating a compressor (100), for the reduction of relief load during a blocked outlet event, and an apparatus therefore, the method comprising at least the steps of: (a) passing one or more compressor feed streams (10, 20, 30, 40) to one or more inlets (18, 28, 38, 48) of a first compressor (100), each compressor feed stream (10, 20, 30, 40) passing through a compressor feed valve (12, 22, 32, 42); (b) compressing the one or more compressor feed streams (10, 20, 30, 40) in the first compressor (100) to provide a compressed discharge stream (150) at the outlet (105) of the first compressor (100); (c) monitoring for a first indicator of a blocked outlet event of the first compressor (100); and (d) instructing the closure of the compressor feed valves (12, 22, 32, 42) when the first indicator of the first compressor (100) blocked outlet event is detected.
Abstract:
Method and apparatus for cooling a hydrocarbon stream (520) to produce an at least partially liquefied hydrocarbon stream (530). A cooled main refrigerant stream (245) is further cooled against at least a part of one or more expanded cooled pre-cooling refrigerant streams (155). A hydrocarbon stream (520) is at least partially liquefied in one or more main heat exchangers (220) against an expanded cooled main refrigerant stream (255), to provide an at least partially, preferably fully, liquefied hydrocarbon stream (530). The air inlet stream (45) of a first gas turbine (50) is cooled using cooling duty from the main refrigerant in the main refrigerant circuit (200) to provide a cooled air inlet stream (55) to the first gas turbine (50).
Abstract:
A gaseous hydrocarbon stream (10) is cooled to produce a liquefied hydrocarbon stream (20). The gaseous hydrocarbon stream (10) is cooled in one or more heat exchangers (140) using a first refrigerant from a first refrigerant circuit (100) in which said first refrigerant is compressed in a first compressor (110) driven by a first gas turbine (120) having a first inlet air stream (125) and liquefied using a second refrigerant circuit (200) wherein a second refrigerant is compressed in a second compressor (210) driven by a second gas turbine (220) and having a second inlet air stream (225). The cooling duty available in a stream of a chilled coolant (320) is divided over at least first (340) and second (350) parts in accordance with a common input parameter, and one or both of said first and second inlet air streams (125, 225) are cooled with the chilled coolant (320), whereby the cooling duty available in the first part (340) is used to cool the first inlet air stream (125), and the cooling duty available in the second part (350) is used to cool the second inlet air stream (225).