Análisis de prefactibilidad técnico económico de una planta de almacenamiento y regasificación de gas natural licuado.

Abstract

The purpose of this work is to provide to investment companies with a pre-feasibility analysis from a technical and economic point of view of a liquefied natural gas (LNG) storage and regasification plant on the coasts of Ecuador, for the subsequent use of natural gas in a 400 MW combined cycle power plant for 25 years. Using the enthalpy of formation theory and considering a plant load factor of 40% that would allow complementing the hydroelectric generation during the dry months, a daily volume of LNG to be regasified of 2 808 m3 (0,1 MMSCF) to obtain a volume of natural gas of 1 926 720 m3 (68 MMSCF) per day, which requires an annual LNG storage of 405 576 m3 . Based on this information the pre-sizing of the plant and its main equipment (storage tank, vaporizer, recondenser, pumps, etc.). Through the financial indicators ROI and IRR, the viability of the development of the plant was evaluated, considering the current import prices of LNG and the costs of the equipment necessary for its correct operation, through communication with the manufacturing companies of the equipment and comparing the costs with other studies carried out in Latin America, a French-type amortization was made for 100% 15-year loan (approximately US$ 96 million) with an annual interest rate of 8%, resulting in an IRR of 20% and profits in excess of US$350 million