Around the world, people are demanding cleaner, more efficient, and more cost-effective power generation.  CAI is proud to provide customers with the best combination of technical know-how and environmentally safe technologies to meet all regulatory and environmental standards.

Renewable Energy Power Plants:

• Bio-Mass
• Digester Gas (Anaerobic Digestion)
• Landfill Gas
• Municipal Solid Waste
• Used Tires
• Coal Gasification

Coal Gasification

Linked with modern combustion and steam turbine-generators, gasification is one of the most efficient, environmentally benign means available for producing electricity from coal and pet-coke. While natural gas combined cycle systems exceed gasification systems in power generating efficiency, the relatively high price and declining availability of domestic natural gas resources make gasification increasingly attractive as a power generation option for power producers.

In the power production process (seen in a representative diagram below), purified syngas from the gasification side of the plant or gasification island€� is supplied to the power side of the plant or power island.€� The syngas is mixed with air and ignited to drive the combustion turbine directly in a combined thermal and mechanical process that is converted to electrical power by the generator. The electrical power from the generator then is fed to the electrical grid for distribution.

Waste heat from the combustion turbine is then used to boil water in the heat recovery steam generator and create the steam to drive a steam turbine with its own generator set. Combined cycle operation makes possible an energy conversion efficiency that is about one-third greater than that possible using a gas turbine only.

IGCC Flow Diagram

The IGCC system consists of:

• The oxygen-blown entrained flow, two stage coal gasifier, which is capable of utilizing high sulfur bituminous coal;
• An air separation unit;
• A gas conditioning system for removing sulfur compounds and particulates;
• Systems or mechanical devices for improved coal feed and all necessary coal handling equipment;
• A combined cycle power generation system wherein the gasified coal syngas is combusted in a combustion turbine generator and steam from HRSG is used to produce supplementary power.
• A heat recovery steam generator.
• Slag/Ash Handling facility.
• Coal Slurry Mixing Plant.
• Coal handling and storage facility.

Used Tires Microwave Application

CAI offers a Spirit 1 MW power plant with a gasification and gas clean-up system for waste-to-energy application. The tire-derived fuel gas will be used to power the Spirit 1MW system. Please see the blocked diagram.

Integrated Gasification with Combined Cycle (IGCC)

Waste-To-Energy Application

The amount of garbage in our landfills is growing daily. How to re-use and recycle this waste is a concern for all nations and citizens to consider.

Our Waste-To-Energy application can take Refuse Derived Fuels (RDF) from municipal solid waste, Tire Derived Fuel (TDF) from used tires, and Landfill Methane Gas (LFG) to provide electricity generation.