| 摘要 |
Disclosed are methods for efficiently and economically designing, constructing, or operating a light hydrocarbon gas liquefaction process for the liquefaction of selected quantities of light hydrocarbon gas. The method includes a light hydrocarbon gas liquefaction launch train (15) to liquefy an initial amount of light hydrocarbon gas (59) and one or more optional subsequent modular expansion phases (115, 215) to said light hydrocarbon gas liquefaction train to liquefy additional selected quantities of light hydrocarbon gas (159, 259) up to a selected maximum quantity of light hydrocarbon gas for the process. The launch train includes facilities, such as light hydrocarbon feed gas prepretreatment facilities, refrigerant compression facilities, cryogenic heat exchange facilities, access services, other liquefaction equipment, and liquefied product storage and shipping facilities, At least a portion of these facilities are employed as shared use facilities. The use of such shared use facilities allows for subsequent expansion phase or modules to be constructed to increase overall plant capacity, which can modules to be constructed to increase overall plant capacity, which can reduce the capital costs and space needed relative to prior methods for the design, construction, or operation of a light hydrocarbon liquefaction process which call for construction of a complete liquefaction train and all of its associated components and related equipment.
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