Method of operating heavy oil-burning gas turbines

Details Method of operating heavy oil-burning gas turbines Method of operating heavy oil-burning gas turbines

1995-09-29

1996-10-08

Casaregola, Louis J.

Power plants

Combustion products used as motive fluid

60 3933, 60 39461, F02C 320

Patent

active

055619770

ABSTRACT:
A method for efficient operation of a heavy oil-burning gas turbine which uses a fuel that has various high-melting point compounds added as corrosion inhibitors with a view to preventing the occurrence of corrosion at elevated temperatures. The amount of addition of the corrosion inhibitor in the initial period of turbine operation is such that the weight ratio of the effective metallic component (M) of the inhibitor to the corrosive component (V) of the fuel is set to lie within the range of M/V=2-5 and thereafter the addition of the inhibitor is reduced in either a stepwise or graded manner over a predetermined cycle of operation within one to six weeks until the amount of the inhibitor added at the end point is one to three tenths of the initial addition.

REFERENCES:
patent: 2689456 (1954-09-01), White
patent: 2966029 (1960-12-01), Rocchini et al.
patent: 2968148 (1961-01-01), Rocchini et al.
patent: 4089689 (1978-05-01), Rigdon et al.
Two Year Experience of Turbine Finning Residual Fuel ASME Paper 68-GT-11.
Ash in Gas Turbines Burning Magnesium-Treated Residual Fuel Trans. ASME Apr. (1994).
High-Temperature Corrosion in Gas Turbines and Steam Boilers by Fuel Impurities. II The Sodium Sulfate-Magnesium Sulfate-Vanadium Pentoxide System Ind. Eng. Chem. Prod. Res. Develop., vol. 12, No. 2, (1973).
High-Temperature Corrosion Gas Turnines and Steam Boilers by Fuel Impurities. IV-Evaluation of Silicon and Magnesium-silicon as Corrosion Inhibitors Trans. ASME Apr. (1974).

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