RNG Conference 2023
COME VISIT US AT
RNG CONFERENCE 2023
BAUER GRU® SERIES
BIOGAS UPGRADING COMPRESSORS FOR PRODUCING PIPELINE QUALITY GAS
The BAUER GRU® Biogas Compressor range has been specifically designed for feeding biogas upgrading systems. The function of the biogas recovery compressor is to elevate the pressure of the incoming biogas from 1-7 psig (typical) to 90-230 psig, which is the operating pressure requirement for most PSA/membrane type gas upgrading systems. BAUER offers a complete GRU system size range from 10 HP to 750 HP (7.5-560 kW).
BAUER GRU® MB5
BIOMETHANE INJECTION INTO THE PIPELINE GRID
The BAUER GRU® MB5 Gas Booster utilizes rotary screw compressor technology and has been specifically designed for biomethane injection into the pipeline grid for applications where higher pressures (up to 1100 PSIG) are required. The BAUER GRU® MB5 rotary screw booster is also suitable for large gas turbine power generators that require higher gas inlet injection pressures. All BAUER GRU® Booster units are equipped with variable frequency speed control which allows the compressor to adjust to the incoming flow of gas.
BAUER MD™ SERIES
BRINGING CNG FROM THE SOURCE TO THE END USER VIA VIRTUAL GAS PIPELINE
The BAUER MD™ SERIES is the ideal solution for bringing RNG to pipelines or industrial plant end users from remote facilities where pipeline infrastructure does not currently exist. By combining rotary screw and reciprocating compressor technology, BAUER can extend the operating range of the compressor system to accomodate extremely high to low inlet pressures, to completely discharge any residual gas from the tube trailer. This maximizes the efficiency of the virtual pipeline system and eliminates mobile trailers returning to the utilities’ station with residual gas. RNG/CNG is transported from source to destination, to allow for fuel usage later.
BIOGAS UPGRADING FACILITY TOUR
BIOGAS FEED COMPRESSION, PIPELINE INJECTION COMPRESSION, AND VIRTUAL PIPELINE/CNG STATION COMPRESSION
In biogas upgrading facilities, raw biogas from the anaerobic digestion of organic matter typically contains 50- 65% methane in addition to other gases, volatile organic compounds, and moisture. To separate pipeline quality renewable natural gas, the raw biogas is run through activated carbon, a condensate dryer, and then compressed by a BAUER GRU® rotary screw compressor to 240 PSIG (17 bar), the pressure required for membrane filtration, which produces 95-97% pure methane. At this point, it can be compressed into high-colume gas tanks by BAUER CNG compressors for transport, storage, or use in clean energy CNG vehicle fueling, or it can be compressed and injected into natural gas pipelines. Biogas plant operators can also use biomethane to generate electricity to power their facilities and/or feed the electrical grid.
