公开(公告)号：US10914516B2

公开(公告)日：2021-02-09

申请号：US16087135

申请日：2017-03-22

申请人： CRYOSTAR SAS

发明人： Mathias Ragot

IPC分类号： F25J1/00 ,  F25J1/02

摘要： The system for treating a gas deriving from the evaporation of a cryogenic liquid and supplying pressurized gas to a gas engine according to the invention comprises, on the one hand, from upstream to downstream, a reliquefaction unit (10) with compression means (11, 12, 13), a first heat exchanger (17) and expansion means (30), and, on the other hand, a pressurized gas supply line comprising, from upstream to downstream, a pump (48) for pressurizing the liquid and high-pressure vaporization means (61).
The pressurized gas supply line has, upstream of the vaporization means (61), a bypass (57) for supplying a second heat exchanger (60) between, on the one hand, pressurized liquid of the supply line (56) and, on the other hand, a line (22) of the reliquefaction unit (10) downstream of the first exchanger and upstream of the expansion means (30).

公开(公告)号：US10801775B2

公开(公告)日：2020-10-13

申请号：US16070880

申请日：2017-01-09

申请人： CRYOSTAR SAS

发明人： Mathias Ragot ,  Frederic Marcuccilli

IPC分类号： F25J1/02 ,  F25J1/00

摘要： A system (100) for liquefying a gas comprises a liquid piston gas multistage compressor (2). It can be arranged on-board a liquefied gas carrier for recycling boil-off gas. Such system may be easily adapted or controlled for matching wide requirement ranges for variations of the liquefaction capacity. In addition, at least part of the liquid piston gas multistage compressor can be shared between the gas liquefying system and an extra gas-fed device. Such extra gas-fed device may be in particular a gas-fuelled or hybrid fuel propulsion engine of the vessel.

公开(公告)号：US11703187B2

公开(公告)日：2023-07-18

申请号：US16959474

申请日：2018-12-12

申请人： Cryostar SAS

发明人： Mathias Ragot

IPC分类号： F17C7/04

CPC分类号： F17C7/04 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2225/0123 ,  F17C2227/0157 ,  F17C2227/0185 ,  F17C2227/0337 ,  F17C2250/043 ,  F17C2250/0439 ,  F17C2250/0443 ,  F17C2250/0447 ,  F17C2265/03

摘要： The invention relates to a method for providing pressurized gas from a source of liquefied gas to a consumer (8), wherein vaporized gas is supplied from the source of liquefied gas (1) through a main input line (2) to a compressor arrangement (300) for pressurizing the vaporized gas, the compressor arrangement (300) comprising a plurality of compressor modules (3, 5, 31, 51), each compressor module being able to operate independently from any other compressor module of the compressor arrangement (300), one or more of the compressor modules (5, 51) of the compressor arrangement (300) can be bypassed, and wherein gas is conducted through only a part or all of the compressor modules depending on at least one of pressure level, temperature level, mass flow and composition of the gas to be provided to the consumer (8).

公开(公告)号：US20180245843A1

公开(公告)日：2018-08-30

申请号：US15755743

申请日：2016-09-02

申请人： Cryostar SAS

发明人： Mathias Ragot

IPC分类号： F25J1/00 ,  F25J1/02

CPC分类号： F25J1/0025 ,  F25J1/0037 ,  F25J1/004 ,  F25J1/0202 ,  F25J1/0247 ,  F25J1/0288 ,  F25J1/0292

摘要： The proposed system comprises a supply line for at least one engine, on which line is situated a first compression unit (3) for said gas and a bypass to a return line on which are successively situated cooling means (10) and reliquefaction means (30). The cooling means successively comprise a second compression unit (11, 12, 13) and a heat exchanger (17). Downstream of the second compression unit (11, 12, 13) a bypass to a loop (18, 20, 21) comprises first expansion means (14), the loop rejoining the return line upstream of the second compression unit (11, 12, 13) after having passed through the heat exchanger (17) in the opposite direction with respect to the gas fraction not bypassed via the loop.

公开(公告)号：US10030815B2

公开(公告)日：2018-07-24

申请号：US14652859

申请日：2013-12-17

申请人： CRYOSTAR SAS

发明人： Vincent Fuchs ,  Mathias Ragot

IPC分类号： F25J1/00 ,  F17C9/02 ,  F25J1/02 ,  F17C13/00

摘要： Natural gas boiling off from LNG storage tanks located on board a sea-going vessel, is compressed in a plural stage compressor. At least part of the flow of compressed natural gas is sent to a liquefier operating on a Brayton cycle in order to be reliquefied. The temperature of the compressed natural gas from the final stage is reduced to below 0° C. by passage through a heat exchanger. The first compression stage is operated as a cold compressor and the resulting cold compressed natural gas is employed in the heat exchanger to effect the necessary cooling of the flow from the compression stage. Downstream of its passage through the heat exchanger the cold compressed natural gas flows through the remaining stages of the compressor. If desired, a part of the compressed natural gas may be supplied to the engines of the sea-going vessel as a fuel.

公开(公告)号：US20150330574A1

公开(公告)日：2015-11-19

申请号：US14652859

申请日：2013-12-17

申请人： CRYOSTAR SAS

发明人： Vincent Fuchs ,  Mathias Ragot

IPC分类号： F17C9/02

CPC分类号： F17C9/02 ,  F17C13/00 ,  F17C2203/011 ,  F17C2205/0146 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2265/034 ,  F17C2265/066 ,  F17C2270/0105 ,  F25J1/0025 ,  F25J1/0045 ,  F25J1/005 ,  F25J1/0072 ,  F25J1/0204 ,  F25J1/0221 ,  F25J1/023 ,  F25J1/0245 ,  F25J1/0265 ,  F25J1/0277 ,  F25J1/0288 ,  F25J2210/62 ,  F25J2230/08 ,  F25J2230/30 ,  F25J2235/60 ,  F25J2270/02

摘要： Natural gas boiling off from LNG storage tanks located on board a sea-going vessel, is compressed in a plural stage compressor. At least part of the flow of compressed natural gas is sent to a liquefier operating on a Brayton cycle in order to be reliquefied. The temperature of the compressed natural gas from the final stage is reduced to below 0° by passage through a heat exchanger. The first compression stage is operated as a cold compressor and the resulting cold compressed natural gas is employed in the heat exchanger to effect the necessary cooling of the flow from the compression stage. Downstream of its passage through the heat exchanger the cold compressed natural gas flows through the remaining stages of the compressor. If desired, a part of the compressed natural gas may be supplied to the engines of the sea-going vessel as a fuel.

摘要翻译： 从位于海上船只上的LNG储罐沸腾的天然气在多级压缩机中被压缩。 压缩天然气流的至少一部分被送到在布雷顿循环中运行的液化器以便再液化。 通过热交换器将来自最终级的压缩天然气的温度降低至0°以下。 第一压缩级作为冷压缩机运行，并且在热交换器中使用所产生的冷压缩天然气，以对来自压缩级的流进行必要的冷却。 在其通过热交换器的通道的下游，冷压缩的天然气流过压缩机的其余级。 如果需要，一部分压缩天然气可以作为燃料供应到海上船舶的发动机。