Method for producing gas turbine fuel, and method and system for generating electric power by gas turbine

摘要

In a method for producing gas turbine fuel through the step of modifying heavy fuel oil (16) with the use of an asphaltene-insoluble solvent (15), the utilization factor of the heavy fuel oil (16) usable as gas turbine fuel is increased by making asphaltene selectively removable. A solvent having a specific dielectric constant in the range of 1.4 to 2.0 is used as the asphaltene-insoluble solvent (15). In particular, water controlled in temperature and pressure so as to have a specific dielectric constant in the above range is used as the asphaltene-insoluble solvent (15). By using such a solvent (15), an asphaltene component (17) contained in the heavy fuel oil (16) can be selectively removed and power generation can be performed while utilizing 95% or more of the heavy fuel oil (16).