Synergy Renewables performed an extensive search of the prevailing waste-to-energy technologies that are commercially available in the world's marketplace. We have aligned ourselves with a number of gasification technologies that fit our business model. Generally stated, Synergy Renewables preferred technology is a non-incineration based gasification system, which provides a greater potential power output and less environmental concerns. These systems create a synthetic gas that can be converted to electricity in modified natural gas engines, combusted in a boiler to create steam or co-fired with traditional fossil fuels.
Currently, we are deploying an advanced and proven technology. This technology is highly efficient and meets our stringent environmental and financial performance standards.
Major Technology Points
• The modular design accomodates various waste quantities with seamless expansion capabilities
• The process is within an enclosed building
• Clean emissions complying with all EPA and EU standards
• Accepts a variety of waste including municipal solid waste (MSW), biomass, tires and sludge
The technology accepts most all types of waste including MSW, yard waste, sludge and tires. Generally, the waste continues to be collected consistent with existing contracts and instead of delivered to the transfer station and /or landfill, the waste is diverted to the waste-to energy facility.
Our waste-to-energy technologies consist of three primary stages:
1. Waste Receiving and Conditioning
Arriving trucks are weighed and directed to an enclosed building where the refuse is discharged onto a tipping floor. Following initial inspections, the waste is processed through a fully automated pre-conditioning system where the waste is shredded, recyclables such as metals are removed and the moisture content adjusted.
The waste (referred to as feedstock) is then delivered to the feed hoppers for storage. The feedstock is discharged from the feed hoppers into the gasifier where the feedstock is heated. This is where the conversion of the carbonaceous feedstock into a useful syngas takes place. This oxygen limited environment does not allow for combustion to occur. In other words, our process does not burn waste.
Next, dependent on which technology is selected, the syngas is either further refined and cleaned and sent to a gas engine or the syngas is sent directly to a boiler where it is combusted to create steam. The remaining inert solids of around 5-10 percent are discharged from the base of the gasifiers and conveyed to storage containers for disposal off-site. The inert solids are deposited in a landfill or are used as a construction aggregate material.
3. Power Generation
The syngas is used to generate electricity in reciprocating gas engines or the syngas is combusted in a boiler creating steam for electrical generation by steam turbines. The gas can also be co-fired with traditional fossil fuels in an existing power plant.