Provided is an integrated coal gasification combined cycle equipped with: a gasifier that generates combustible gas from pulverized coal; a gas cooler; gas turbine equipment; an auxiliary fuel supply unit that supplies an auxiliary fuel to the gas turbine equipment; a heat recovery steam generator; steam turbine equipment; generators; and a circulation line unit that circulates cooling water. The heat recovery steam generator has a first medium-pressure coal economizer and a second medium-pressure coal economizer. When the combustible gas generated from the pulverized coal is burned, a serial heat exchange line is formed wherein cooling water passes through the first medium-pressure coal economizer, the second medium-pressure coal economizer, and the gas cooler. When the auxiliary fuel is burned, separate heat exchange lines are formed, wherein the cooling water separately passes through the first medium-pressure coal economizer and the second medium-pressure coal economizer.

An integrated combustion device power saving system includes: a hydrogen generation device, for generating a hydrogen-rich gas; a combustion device, for receiving the hydrogen-rich gas for combustion and generating heat energy and flue gas; a smoke distributing device, for distributing flue gas to the hydrogen generation device or atmosphere; a hydrogen-generation feed preheating device, for capturing waste heat of the flue gas from the smoke distributing device to preheat a hydrogen-generation feed to be used in the hydrogen generation device; and a power generating device, for receiving the flue gas from the hydrogen-generation feed preheating device while recycling waste heat of the flue gas to generate power to at least one of the hydrogen generation device or the combustion device.

A syngas generator provides a pyrolysis chamber and a steam cracking unit within a heater. A conveyor such as an auger directs input through the pyrolysis chamber where a pyrolysis reaction at about 600 C releases a gas/vapor mixture which is directed through a manifold and through an ejector into the cracking unit which operates at about 1200 C. Syngas from the cracking unit can be cooled, used for co-generation power systems, generate steam, and/or be burned (possibly combusted to generate electricity) with the heat used to heat the heater.

The object of the present invention is a plant and related method for the supply to the end-user, by making use of the heating power transferred by a heat source e.g. gas, oil products, coal or renewable type e.g. biomass, solar, geothermal, simultaneously with electric power and/or mechanical power, heating power and cooling power Heating-Cooling operating mode of the plant or simultaneously with electric power and/or mechanical power and heating power only Heating operating mode of the plant or simultaneously with electric power and/or mechanical power and cooling power only Cooling operating mode of the plant. The operation of the plant, according to each of the three operation modes, is obtained by the regulation of several on-off valves and a flow rate regulation valve.

Systems and methods for providing an integrated carbon sequestration and power generation system are disclosed. The integrated carbon sequestration and power generation system may include: a thermodynamic cycle configured to receive biomass and to output heat and power; and a direct air capture system configured to receive at least some of the heat and the power output from the thermodynamic cycle. Other aspects are described and claimed.

The present invention relates to an air purification apparatus for a coal-fired electric power plant, and more specifically to an air purification apparatus for a coal-fired electric power plant, which, first, can filter out wastes of contaminated smoke by using limewater, which, second, can filter out fine dust and carbon dioxide included in the smoke, which, third, can convert waste gas including carbon monoxide in a state in which only smoke remains into carbon dioxide by reacting oxygen with the waste gas and purify the smoke into clean air by allowing a sodium hydroxide solution to absorb the carbon dioxide, and which, fourth, can eliminate humidity from the clean air by passing the clean air through a moisture condenser a plurality of times and discharge clean air in a pure smoke state from the power plant.

A pulverized-fuel supply unit includes a hopper, first nozzles, second nozzles, a pressurizing-gas supply device, a fluidization-gas supply device, and a pulverized-fuel supply line. The hopper has a hollow to store therein pulverized fuel. The first nozzles are provided to the hopper. The second nozzles are provided to a vertically lower part of the hopper below the plurality of first nozzles. The pressurizing-gas supply device is configured to supply pressurizing gas to increase internal pressure of the hopper. The fluidization-gas supply device is configured to supply fluidization gas to fluidize the pulverized fuel in the hopper. The pulverized-fuel supply line is provided to a vertically lower part of the hopper. The pressurizing-gas supply device supplies pressurizing gas to the first nozzles and the second nozzles. The fluidization-gas supply device supplies fluidization gas to the second nozzles.

A power generation system comprising: a liquefied natural gas (LNG) regasification unit configured to perform a regasification process to regasify LNG supplied from an LNG source to produce natural gas, the regasification process producing cold energy; a gas turbine configured to combust the natural gas to output power, the combusting producing an exhaust gas; a thermal storage unit configured to store heat obtained from the exhaust gas; and a Stirling engine configured to output power, the Stirling engine having a hot end heated by the heat stored in the thermal storage unit and a cold end cooled by the cold energy from the regasification process.

A gas turbine power generation plant including: a solid fuel gasifier for the production of a fuel gas stream, an arrangement for fuel gas treatment, a combustor for receiving the fuel gas stream and for the production of a flue gas stream, a gas turbine unit having an inlet for said flue gas stream and being mechanically coupled to an electric generator for the extraction of useful work; a compressor unit for the supply of compressed oxygen to the combustor. A steam generator is arranged for heat recovery in the flue gas stream downstream of the turbine unit, a condenser is positioned for water recovery in the flue gas stream, said condenser having a connection for water supply to the steam generator, and the steam generator is connected for supply of steam to the combustor for contributing as process gas. The invention also concerns a method for operating a power plant and an arrangement and a method for fuel gas treatment.

A gasification facility which uses flammable gas as a carrier medium for air-transporting powder fuel, used as a gasification raw material, to a gasification furnace and which can safely release the flammable gas, exhausted from a fuel feed hopper, to the atmosphere. In the gasification facility using flammable gas as a carrier medium for transporting pulverized coal as powder fuel from a pulverized coal feed hopper (7) to a gasification furnace (11), the flammable gas discharged from the pulverized coal feed hopper (7) is subjected to incineration treatment and then released to the atmosphere, so that safe release to the atmosphere can be implemented.