Agrilectric

Agrilectric Power Partners is the power plant operations company in Lake Charles, Louisiana, USA. Acting as project management for the design and construction of both units in Lake Charles, the company has successfully operated the facility since 1984.

Over that period of time, company personnel have not been content with the status quo, but have continued to review, evaluate, and modify the process systems in order to improve the overall operation and improve rice hull ash qualities. Modifications to the equipment and procedures have resulted in improved availability and capacity. Although engineering has set the benchmarks, there is no replacement for experience of operating a solid fuel burner over time.

Unit No. 1

Start of Operations: July 1984
Capability: 13 MW
Primary Fuel: Ground Rice Hulls
Ignition Fuel: Natural Gas
Burners: Agrilectric, 4 Front Fired
Forced Draft Fan 1 with
Induced Draft Fan 1
Transport Fans

Steam Outlet Conditions: 650 psig (44 bar) 750oF (399oC)
Steam Flow: 116,000 Lbs/hr (52,652 Kg/hr)

Turbine-Generator
Single Shaft, 3600 rpm, and 4 stage extraction points
Generator
Air Cooled, 2 Pole, 3 Phase, and 60 Hertz, 13,800 volts

Pollution Controls
Bag Filter with Pulse Jet Cleaning, Four Modules
Each Module with Cloth Area of 3532 square feet (328 square meters)


Environmentally Friendly
One of the most important features of the Agrilectric electric generating plants is their environmentally friendly nature. Agrilectric's unique fuel is consumed by a combustion system that provides low emissions. The fuel is introduced to the combustion zone in a manner that maximizes combustion in a very short period of time. Steam, electrical generation and low carbon by-products are the results of the efficient use of the fuel. Agrilectric received the prestigious Environmental Protection Award by Power Magazine in 1985 for the original plant installation. By using a biomass fuel, rice hulls, the USEPA places value upon these plants primarily because they do not increase atmospheric carbon dioxide concentrations. The carbon emitted is offset by the growth of new biomass. If rice hulls are not burned, they eventually decompose and the cellulose is converted to methane and carbon dioxide. Burning the hulls prevents the formation of methane, which is 21 times more potent as a greenhouse gas than carbon dioxide. Thus, the gases produced by the decomposition of the hulls have a combined potency of 4 times greater than those produced by combustion.

Efficient
Efficiency of the system is a result of good engineering and proper operations. The boilers in Lake Charles have efficiencies in the 80% range. The system for heat recovery in the 13 MW unit provides the unit with overall efficiencies approaching larger utility type generating plants. Efficiencies are much better on this type of unit when compared to gasification methods. The Agrilectric combustion system is a system of choice when efficiencies and ash qualities are an important consideration.
Reliable
Solid fueled generating plants are traditionally less reliable and more expensive to maintain. Rice hulls are high in silica content and therefore can create additional operational difficulties if not performed properly. The Lake Charles 13 MW plant has an availability factor of 93% since beginning operations. An ongoing effort of diligent operations practices and problem solving has proven to be the key to this successful record.

Filtration
The filtration technology is expanding daily. Agrilectric produces a renewable quality filtration aid that has unique characteristics.

Additive
The ash, with high amorphous silica content is utilized in the international steel markets as an insulator.


Insulation
The ash, with high amorphous silica content is utilized in the international steel markets as an insulator.

Absorbent
Based on the internal and external surface area, our products create an excellent absorbent for liquid spills.

Fertilizer
Reintroduced into the ground as soil amendments and potting soils for water retention.

Copyright © 2005 The Agrilectric Companies. • Phone: (337)430.0006