A gas turbine process includes supplying a fuel to a gas turbine, combusting the fuel in the gas turbine with a hot gas path temperature reaching at least 1100 C. during operation of the gas turbine, and supplying an inhibition composition including at least one yttrium-containing inorganic compound to interact with the vanadium and inhibit vanadium hot corrosion in the gas turbine caused by vanadium as a fuel impurity in the fuel. A process includes supplying an inhibition composition including at least one yttrium-containing inorganic compound to a hot gas path or a combustor of a gas turbine. A fuel composition includes a fuel including at least one fuel impurity including vanadium and an inhibition composition including at least one yttrium-containing compound. An atomic ratio of yttrium to vanadium in the fuel composition is in a range of 1 to 1.5.

A fire starter kit that includes a frame, a scratcher, a sparking road, and at least one fuel reservoir. The frame is having a first end, a second end, a middle region, a recess provided on the middle region, and a first slot provided along the first end, the second end and partially through the middle region. The scratcher removably mounted in the recess, wherein the scratcher is having at least one blade provided with a plurality of tooths. The sparking rod is removably mounted within the first slot, wherein the sparking rod is configured to produce sparks when scratched with the scratcher.

A method of inhibiting vanadic corrosion of a hot part of a gas turbine system is provided. The method includes introducing, in the combustor, a first oxide comprising magnesium oxide (MgO) and at least one second oxide from among Al.sub.2O.sub.3, Fe.sub.2O.sub.3, TiO.sub.2 and SiO.sub.2. A ratio m of a number of moles of MgO to a number of moles of V.sub.2O.sub.5 and a ratio a of a total number of moles of the at least one second oxide to the number of moles of V.sub.2O.sub.5 satisfy two conditions based on a firing temperature of the expansion turbine, an average density of one or more double oxides formed by a reaction between MgO and the at least one second oxide, and an average Knoop hardness of the one or more double oxides formed by the reaction between MgO and the at least one second oxide.

Proposed is a pretreatment desulfurization system including: a first chute for supplying a pretreatment apparatus with coal transported by a belt conveyor; a pretreatment apparatus for immersing the supplied coal in a catalyst mixture obtained by mixing a desulfurization catalyst and water, thereby desulfurizing the coal; a mesh conveyor for separating the coal being immersed in the catalyst mixture and having passed through the pretreatment apparatus, into a liquid phase and a catalyst-treated coal; a mesh conveyor for transporting the catalyst-treated coal; and a storage tank for storing the transported catalyst-treated coal.