Project Scope

Venture Engineering & Construction was contracted to provide its patent pending Biogas Conditioning System to improve the quality of the Landfill Gas at the Chicopee Landfill Gas to Energy (LFGTE) facility. The landfill uses approximately 3,000 scfm of landfill gas to produce approximately 7.8MW of power using four (4) Jenbacher 616 engines.

The Biogas Conditioning System removes landfill gas contaminants including H2S NMOCs, Siloxanes , and moisture prior to combustion in the engines. These contaminants are harmful to all combustion devices as well as post combustion environmental control system catalysts (i.e. CO and SCRs). The Biogas Conditioning System at this facility includes our standard low pressure, three vessel regenerable Gas Conditioning Skid.

As of March 2011, this facility has been operating for 8,000 hours and is still on the original change of media. Media life expectancy is estimated at 24 months. The sample taken at 8,000 hour was < 180 ppbv, Si.

Design Basis

Inlet Conditions (Typical):
• Inlet: 3,000 scfm
• 10 psig
• = 75 mg/m3 siloxanes
• = 450 ppmv H2S
• = 45F dew point
• = 100F
• = 2,000 ppmv NMOCs
• Outlet: =5 mg/m3, Si

Outlet (Typical):
• Siloxanes: = 75 ppbv, Si
• Dew Point: = 0F (24 hr avg.)
• NMOCs: = 750 mg/m3

Project Scope

Venture was contracted to provide its patent pending Biogas Conditioning System to improve the quality of the Landfill Gas at the Olinda Landfill Gas to Energy (LFGTE) facility located in Brea, California. The LFGTE facility will use approximately 12,500 scfm of landfill gas to produce approximately 32.5MW of power using four (4) Solar Taurus 60 Gas Turbine Generators with HRSGs. The Biogas Conditioning System will remove landfill gas contaminants including NMOCs, Siloxanes and moisture, prior to combustion in the turbines. These contaminants are harmful to all combustion devices as well as post combustion environmental control system catalysts (i.e., CO and SCRs). The Biogas Conditioning System at this facility includes our standard, high pressure, two vessel regenerable Gas Conditioning Skid and a carbon polishing skid.

The carbon polishing skid is used to assure long term, high siloxane removal efficiencies. The carbon polishing skid will operate in a lead / lag manner using manual valves and will only be used a few months of a year.

Design Basis

Inlet Conditions (Typical)
• Inlet: 12,500 scfm
• 130 psig
• = 120 mg/m3 siloxanes
• = 25 ppmv H2S
• = 45°F dew point
• = 100°F
• = 2000 ppmv NMOCs

This project was shipped on April 1, 2011 and will be commissioned in June 2012. Noteworthy, this will be the largest single gas conditioning system in the U.S.

Project Scope

Venture Engineering & Construction was contracted to provide its patent pending Biogas Conditioning System to improve the quality of the Landfill Gas at this Landfill Gas to Energy (LFGTE) facility. The landfill uses approximately 2,500 scfm of landfill gas to produce approximately 10 MW of power using five (5) Jenbacher 420 engines.

The Biogas Conditioning System removes landfill gas contaminants including H2S NMOCs, Siloxanes , and moisture prior to combustion in the engines. These contaminants are harmful to all combustion devices as well as post combustion environmental control system catalysts (i.e. CO and SCRs). The Biogas Conditioning System at this facility includes our standard low pressure, two vessel regenerable Gas Conditioning Skid.

Design Basis

Inlet Conditions (Typical):

* Inlet: 2,500 scfm
* 10 psig
* = 100 mg/m3 siloxanes
* = 100 ppmv H2S
* = 45?F dew point
* = 100?F
* = 2,000 ppmv NMOCs
* Outlet: =5 mg/m3, Si

Outlet (Typical):

* Siloxanes: = 75 ppbv, Si
* Dew Point: = 0F (24 hr avg.)
* NMOCs: = 750 mg/m3

Project Scope

Venture was contracted to provide its patent pending Biogas Conditioning System to improve the quality of the Landfill Gas at the Olinda Landfill Gas to Energy (LFGTE) facility located in Brea, California. The LFGTE facility will use approximately 11,500 scfm of landfill gas to produce approximately 32.5MW of power using four (4) Solar Taurus 60 Gas Turbine Generators with HRSGs. The Biogas Conditioning System will remove landfill gas contaminants including NMOCs, Siloxanes and moisture, prior to combustion in the turbines. These contaminants are harmful to all combustion devices as well as post combustion environmental control system catalysts (i.e., CO and SCRs). The Biogas Conditioning System at this facility includes our standard, high pressure, two vessel regenerable Gas Conditioning Skid and a carbon polishing skid.

The carbon polishing skid is used to assure long term, high siloxane removal efficiencies. The carbon polishing skid will operate in a lead / lag manner using manual valves and will only be used a few months of a year.

Design Basis

Inlet Conditions (Typical)
• Inlet: 11,500 scfm
• 130 psig
• = 120 mg/m3 siloxanes
• = 25 ppmv H2S
• = 45°F dew point
• = 100°F
• = 2000 ppmv NMOCs

This project was shipped on April 1, 2011 and will be commissioned in June 2012.

Project Scope

Venture Engineering & Construction was contracted to provide its patent pending Biogas Conditioning System to improve the quality of the Landfill Gas at this Landfill Gas to Energy (LFGTE) facility. The landfill uses approximately 2,000 scfm of landfill gas to produce approximately 7 MW of power using four (4) Jenbacher 320 engines.

The Biogas Conditioning System removes landfill gas contaminants including H2S NMOCs, Siloxanes , and moisture prior to combustion in the engines. These contaminants are harmful to all combustion devices as well as post combustion environmental control system catalysts (i.e. CO and SCRs). The Biogas Conditioning System at this facility includes our standard low pressure, two vessel regenerable Gas Conditioning Skid.

Design Basis

Inlet Conditions (Typical):
• Inlet: 2,000 scfm
• 10 psig
• = 75 mg/m3 siloxanes
• = 100 ppmv H2S
• = 45?F dew point
• = 100?F
• = 2,000 ppmv NMOCs
• Outlet: =5 mg/m3, Si

Outlet (Typical):
• Siloxanes: = 75 ppbv, Si
• Dew Point: = 0F (24 hr avg.)
• NMOCs: = 750 mg/m3

Project Scope

Venture Engineering & Construction was contracted to provide engineering, design, procurement, and equipment supply to DCO Energy for a new combined cycle landfill gas to energy facility at the APEX Landfill in Las Vegas, Nevada. The project included two Solar Taurus Turbine Generators (T-60′s) with HRSG’s. The new combined cycle, merchant power plant produces 16MW of power for sale to Nevada Energy under a long term power purchase agreement. The turbines are fueled with 4,800 scfm of landfill gas.

Project scope includes:

• Landfill gas blowers (75″ wc vacuum, 12 psig discharge)
•Landfill gas compression (two stage, 12 psig suction, 260 psig discharge)
•Landfill gas chiller (gas drying)
•Ammonia Refrigeration (for compression systems, LFG dryer and turbines)
•Gas Conditioning System (remove unwanted landfill gas contaminants)
•Power Island: two Solar Taurus T-60 turbine gensets with HRSGs
•Environmental systems: Oxidative and SCR catalysts (CO and NOx reduction, respective)
•Inlet air chilling
•Nevada Energy interconnect

Services Provided

Detailed engineering and design of the above, plus engineering, fabrication and supply of Venture Engineering’s patent pending landfill gas conditioning system (pictured above). Venture’s gas conditioning system removes unwanted and harmful organosilicon (siloxane) compounds, as well as moisture and H2S from the landfill gas prior to combustion. Siloxanes form silicon dioxide when combusted, which foul turbine blades as well as post combustion
catalysts.