US 6,786,050 B1 · System and method for oil fuel burning integrated combined cycle power generation

Abstract

A light portion is extracted from feed oil by a separation system. The light portion is then subject to a hydrotreatment to obtain impurity-removed fuel oil which is stored in an intermediate tank. A residue of the feed oil after extraction of the light portion is gasified to obtain syngas (H2 gas+CO gas) which is used as basic fuel for power generation in a power generation system. The fuel oil is fed to the power generation system as auxiliary fuel for supplementing the power generation based on the syngas. The power generation system includes a plurality of gas turbines and generators. The number of the gas turbines to be driven by the fuel oil is controlled to adjust the power generation amount depending on demand.

Claims20

Dependent claims

An oil fuel burning integrated combined cycle power generation system comprising:

a fuel producing system comprising a separation means for separating feed oil composed of a crude oil and/or heavy oil into a light portion and a heavy portion, and a refining means for refining the light portion to obtain fuel oil;
a gasification system for gasifying the heavy portion to produce syngas containing hydrogen gas and carbon monoxide gas;
a gas turbine power generation system for driving a gas turbine using the fuel oil and the syngas as fuel to carry out power generation;
and
a steam turbine power generation system for driving a steam turbine using steam produced by heat recovered from exhaust gas of the gas turbine to carry out power generation.

2 more elements

An oil fuel burning integrated combined cycle power generation method comprising:

a fuel producing step of separating essentially all the amount of feed oil composed of a crude oil and/or heavy oil into a light portion satisfying a gas turbine fuel specification and a heavy portion being a residue of the feed oil after separation of the light portion therefrom;
a gasification step of gasifying essentially all the amount of the heavy portion through partial oxidation to produce syngas containing hydrogen gas and carbon monoxide gas;
a gas turbine power generation step of carrying out power generation based on essentially all the amount of the syngas supplied as basic fuel and further based on the light portion supplied as auxiliary fuel for adjusting a power generation amount depending on power demand;
and
a steam turbine power generation step of carrying out power generation using steam produced by high-temperature exhaust gas obtained in the gas turbine power generation step.

2 more elements

Dependencies are inferred from the claim text.

System and method for oil fuel burning integrated combined cycle power generation

Life of this patent

System and method for oil fuel burning integrated combined cycle power generation

Life of this patent

Abstract

Claims20