The Aarell Company - Press Releases

BIOMASS TO ENERGY

PURPOSE:
This paper will describe a complete Biomass to Energy conversion process able to convert most carbon based biomass fuels to various forms of energy which can be used by the end user or organization.

SYSTEM DESCRIPTON:
Three forms of energy may be produced by this system; (1) Hot Air for drying, (2) Saturated Steam or Hot Water, and (3) Electricity.

The equipment provided will be a complete system including incoming fuel storage facility, fuel delivery conveyors and shredders, feed hoppers and input fuel feeders, gasifier and starved air fans including draft control, oxidizing chamber, ductwork to energy production equipment, induced draft fan and ash removal conveyor. The energy production device may be a producer gas to air heat exchanger with fresh air fan and related dampers, HRSG steam boiler or hot water generator, or a ceramic primary heat exchanger / metal secondary heat exchanger with ductwork and fan for feed into a hot air electric turbine-generator system.

PROCESS DESCRIPTION:

The feeder system will deliver the feedstock to the gasifier in the form of a shredded loose material with particle size less than 6”. The specific equipment provided will depend on the raw material. Materials such as municipal solid waste preferably would have the metal and glass removed then shredded, crop residues may be delivered in baled form and the bales would be shredded. Animal manure would need to be dried to less than approximately 40% moisture before introduction into the gasifier.

Unlike combustion processes, gasification is an oxygen-starved process that converts solid fuels or biomass into a gaseous fuel, primarily hydrogen and carbon monoxide. The solid fuel is heated in a refractory lined chamber to a temperature that releases the CO and H2 gases without sufficient oxygen to complete combustion, thereby creating the producer gas. A venturi system at the exit of the gasifier provides a draft at the gasifier without sufficient oxygen to complete combustion. Reaction air is bled into the oxidizer until combustion of the CO and H2 is complete while maintaining a low temperature allowing for an environmentally safe clean hot air to be produced.

When using biomass feeds, which are considered ‘carbon-neutral’ (i.e. No net added carbon emissions), gasification technology can concurrently mitigate wastes while producing renewable energy. The hot air produced is then used to create energy for a drying system, heat for a heat recovery steam generator (HRSG) steam or hot water generator, or the hot air for an electrical turbine.

COST:
Costs will vary depending on the processing costs for the incoming fuel and the type of energy required by the output energy. The following should only be used as an evaluation tool in determining the approximate capital costs required.

Incoming fuel storage and conveying cost $ 50,000.00
Gasifier, Oxidizer, ductwork and ID Fan $ 675,000.00
Ash Removal Conveyors $ 30,000.00
Building and concrete pad $ 50,000.00

STEAM
HRSG fired boiler or hot water generator $ 250,000.00

ELECTRIC
Ceramic heat exchanger, fan and turbine generator $ 400,000.00

HOT AIR
Heat Exchanger and F.D. Hot Air Supply Fan $ 125,000.00

The above do not include the costs of permitting, site preparation or equipment installation.

JOB CREATION PER PROJECT:

All technologies are protected by patents held by Michigan companies and engineering and manufacturing will take place at Michigan based manufacturing Sites.

Project management, mechanical, electrical and controls engineering..........3,000 hrs/project
Equipment Manufacturing.........................................................................3,500 hrs/project
Site equipment trades installation.............................................................. 4,000 hrs/project

JOB CREATION FOR PLANT OPERATION:

Shift Operators.....................................4 Operators
On-site Engineer/Operator....................1 Engineer
Clerical Staff.0......................................1 Office

For Additional Information Contact:

James Schuur, President
The Aarell Company

Phone: 248.649.3810
Fax: 248.649.3845

email: jim.schuur@aarell.com