Simplified title:用于同时制造可液化天然气及天然气液体馏份之方法与设备 PROCESS AND PLANT FOR THE SIMULTANEOUS PRODUCTION OF AN LIQUEFIABLE NATURALGAS AND A CUT OF NATURAL GAS LIQUIDS
Abstract in simplified Chinese:本发明包括下列步骤:(a)将天然气进料(101)导入第一个蒸馏塔(31)中,即可产生做为顶部产物之预处理天然气(111),此预处理天然气(111)实质上不再含有任何C6^+烃类;(b)将预处理天然气(111)导入一含有至少第二个蒸馏塔(49)之NGL回收设备(19),如此一方面可产生做为塔顶产物之纯化天然气(151),且另一方面可产生NGL馏份(15);(c)从源自步骤(b)之已纯化天然气(151)中生成该可液化天然气(161)。
Abstract:
The method includes cooling and liquefying a feed gas stream, separating a stream obtained from the feed gas stream, and recovering a treated gas stream and a natural gas liquid stream. The method further includes compressing the treated gas stream in order to form a compressed treated gas stream, and fractionating the natural gas liquid stream into a plurality of hydrocarbon fractions (28, 30, 32, 33). The method additionally includes withdrawing from the compressed treated gas stream, of a recycle stream, and reintroducing the recycle stream without cooling into the feed gas stream, into the cooled feed gas stream, or into a stream obtained from the cooled feed gas stream upstream of an expander.
recovering and compressing a head stream coming from a separation column, to form a stream of compressed purified natural gas; liquefying the stream of compressed purified natural gas in a liquefaction unit to form a stream of a pressurized liquefied natural gas; flash expanding of the stream of pressurized liquefied natural gas and recovering in a storage; recovering and compressing of a flow of flash gas coming from the expanding; separating the flow of compressed flash gas (132) into a fuel stream and a recycle stream; cooling and expanding the recycle stream, then introducing the cooled and expanded recycle stream at a head stage of the separation column.
Abstract:
A device comprises an assembly for attaching to and moving on the production line. The attachment and movement assembly comprises at least two clamps that can be actuated selectively to clamp the production line, the attachment and movement assembly comprising an active mechanism for moving the clamps longitudinally relative to each other. The attachment and movement assembly comprises a tilting mechanism for tilting the clamps relative to each other, between a position in which they are parallel to each other and a position in which they are tilted with respect to each other. The tilting mechanism comprises a flexion bar capable of switching from a straight configuration in the parallel position of the clamps to a curved configuration in the tilted position of the clamps.
Abstract:
This method comprises passing a residual stream into a flash drum to form a gaseous overhead flow and liquid bottom flow, and feeding the bottom flow into a distillation column, It comprises cooling the overhead flow in a heat exchanger to form a cooled overhead flow. It comprises the extraction of a gaseous overhead stream at the head of the distillation column, and the formation of at least one effluent stream from the overhead stream and/or from the top stream. The separation of the cooled overhead flow comprises passing the cooled overhead flow into an absorber, and injecting a methane-rich stream into the absorber to place the cooled overhead flow in contact with the methane-rich stream.
Abstract:
A pipe tensioner for laying or recovering a subsea pipeline comprising at least two opposing continuous tracks able to hold the subsea pipeline, each track having a plurality of pads mounted on the continuous track for contacting the subsea pipeline, characterised in that at least one pad is a load pad comprising one or more load sensors for measuring loading on the load pad during handling of the subsea pipeline.
Abstract:
A clamp comprises a plurality of pads; a belt for clamping the pads that is maneuverable between an unclamped configuration and a configuration clamping the pads against the production line; a clamping actuator for the clamp, mounted on a first point of the clamp, the clamping actuator having a grasping member for a second point of the clamp, the grasping member being movable between a deployed position and a retracted position moving the second point towards the first point. The spacing-apart mechanism is able to move the grasping member between a spaced-apart configuration of the second point in the deployed position of the grasping member and a grasping configuration in an intermediate position between the deployed position and the retracted position.
Abstract:
The method comprises supplying, at a construction site, of a functional module comprising a hybrid cooler; verifying onsite the exploitation of the equipment of the functional module; mounting the functional module on a support structure; moving the structure to an exploitation site on the expanse of water. The verification involves passing a flow to be cooled through the air cooler of the hybrid cooler, the flow being cooled exclusively by a flow of air circulating through the air cooler of the hybrid cooler. The exploitation of hydrocarbons on the expanse of water involves the passage of a flow to be cooled through the water cooler of the hybrid cooling system, the flow being cooled by heat exchange with water taken from the expanse of water circulating through the water cooler.