Optimization of Shipping Distribution Line of Mini-Lng (Liquefied Natural Gas) Carrier in The Eastern Indonesia Region

Abstrak

The Eastern Region of Indonesia (KTI) that consists of Papua, West Papua, Maluku and North Maluku Provinces is considered to be far back behind in electricity ratio compared to other regions in Indonesia. However, the region has abundant resources such natural gas. The study merely discusses natural gas resources from 3 fields of Tangguh, Masela and Kasuri.

The research discusses the distribution of natural gas from the three fields by transforming the gas into LNG (Liquefied Natural Gas). The LNG is carried by mini-LNG carrier to mini- LNG receiver terminals. The quantity of LNG carrier should be accordance with the electricity plan for every province referring to Rencana Usaha Penyediaan Tenaga Listrik (RUPTL) PT. PLN 2018-2027. To distribute the gas by mini LNG carrier optimally, there is a need an optimization of shipping distribution line. Determination of the shipping line is conducted by selecting the nearest distance between LNG terminal / LNG receiver terminal which consists of 35 location points divided into 5 Clusters. The closest distance is assumed as the lowest cost to perform the distribution.

The total capacity of planned gas power plant in Eastern Indonesia is 1300 MW. It covers 4 (four) provinces of Maluku, North Maluku, Papua and West Papua. It requires a gas supply of 208 mmscfd or 9984 m3/d of LNG. There are 32 LNG receiver terminals and 3 LNG stations divided into 5 clusters. As a result, Eastern Indonesia Region requires 5 mini LNG carriers. It consists of 3 LNG carriers with 15800 m3 capacity and 2 LNG carriers with a capacity of 12000 m3. The efficient and effective arrangement of LNG distribution is expected to meet the needs of power plants spread across the eastern region of Indonesia.