公开(公告)号：US20230392860A1

公开(公告)日：2023-12-07

申请号：US18250214

申请日：2021-10-12

Applicant: SHELL OIL COMPANY

Inventor： Carolus Antonius Cornelis VAN DE LISDONK ,  Mark Antonius KEVENAAR ,  Saheed Olukayode Steven TAIWO

IPC: F25J1/02 ,  F25J1/00

CPC classification number: F25J1/0214 ,  F25J1/0022 ,  F25J1/0055 ,  F25J1/0292 ,  F25J1/0296 ,  F25J1/027 ,  F25J1/0259 ,  F25J1/0237 ,  F25J2220/64 ,  F25J2220/66

Abstract: A facility for the production of liquefied natural gas comprising a liquefaction train. The train comprises a plurality of modules to perform the process steps associated with liquefied natural gas production. The train further comprises a primary cooling loop to cool at least a process stream from each module and a first and a second mixed refrigerants against a first coolant comprising clean water. The primary cooling loop is a closed clean water loop, and the cooling is against an ambient temperature. The train further comprises a first plurality of heat exchangers through which the primary cooling loop extends. The cooling is via heat exchange in at least the first plurality of heat exchangers with respect to the first coolant. More than 50% of the first plurality of heat exchangers are printed circuit heat exchangers, which are adapted to provide at least 80% of the cooling against the ambient temperature.

公开(公告)号：US20160138862A1

公开(公告)日：2016-05-19

申请号：US15006576

申请日：2016-01-26

Applicant: SHELL OIL COMPANY

Inventor： Mark Antonius KEVENAAR ,  Johan Jan Barend PEK ,  Chun Kit POH

IPC: F25J1/00 ,  F25J1/02

Abstract: A hydrocarbon stream, such as natural gas, is commonly cooled together with a first refrigerant stream, against an evaporating refrigerant in a series of one or more consecutively arranged common heat exchangers. The series comprises of one or more consecutively arranged common heat exchangers comprise a first common heat exchanger, upstream of which first common heat exchanger the hydrocarbon stream and the first refrigerant stream are not commonly cooled. The hydrocarbon stream to be cooled is fed into the first common heat exchanger at a hydrocarbon feeding temperature, while the first refrigerant stream is fed into the first common heat exchanger at a refrigerant feeding temperature. The temperature difference between the hydrocarbon feeding temperature and the refrigerant feeding temperature is lower than 60° C.

Abstract translation: 诸如天然气的烃流通常与第一制冷剂流一起冷却在一系列一个或多个连续布置的公共热交换器中的蒸发制冷剂上。 该系列包括一个或多个连续布置的公共热交换器，其包括第一公共热交换器，在第一共同热交换器的上游，烃流和第一制冷剂流不是通常冷却的第一公共热交换器。 将待冷却的烃流以烃供给温度供给到第一公共热交换器中，同时以制冷剂供给温度将第一制冷剂流供给到第一公共热交换器。 供油温度与制冷剂供给温度之间的温差低于60℃。