关键词: 交通运输工程, LNG, 海运网络, 海运成本, 二程转运, 混合整数线性规划

Abstract: Based on the current situation that China’s import LNG carriers were mainly long-term charterers, and considering the addition of coastal two-way transshipment in the import LNG shipping network at the same time, a mixed integer linear programming model with the objective of minimizing the total cost of marine transportation was established to optimize Chinas import LNG shipping network. At the same time, the economy of using small and medium-sized LNG carriers in Chinas coastal two-way transshipment network was analyzed, the appropriate hub port under the economic situation of coastal two-way transshipment was found out and the fleet configuration required for coastal two-way transportation was obtained. From the results of the optimization, it is found that for some small and medium-sized LNG terminals with limited ship types in Chinas coastal areas, the coastal two-way transshipment mode can be adopted to meet their needs, which can effectively reduce the shipping cost of Chinas imported LNG.

Key words: traffic and transportation engineering, LNG, maritime transport network, maritime transport cost, second transfer, MILP