WELTEC Biomethane Plant in France Launches Feed-in
On 5 August, the „Longchamps“ biomethane plant in the Franche-Comté region in eastern France went live. Thus, 70 standard m3/h are now continually supplied to the natural gas grid of the French gas distributor GrDF (Gaz réseau Distribution France). Plant operator David Peterschmitt uses about 6,000 t of agricultural leftovers a year for the production of biogas from anaerobic digestion.
To ensure effective biogas processing, German plant manufacturer WELTEC BIOPOWER decided to deploy flexible, compact membrane technology. In the three-stage separation procedure, methane is separated from carbon dioxide (CO2), water vapour and other components with the help of special polymer membranes. The WELTEC membrane procedure is highly efficient and delivers a methane yield of about 99 percent.
The upstream compression is another advantage of the procedure. In this way, the separated methane already has the needed pressure for feed-in to the natural gas grid without being compressed again. This saves costs by eliminating the need for an additional compressor and enables economic use of WELTEC biogas processing even for smaller plants. This processing method also saves money in other areas: The molecules are separated at ambient temperature and without the addition of chemicals. Moreover, the membrane technology stands out with its compact setup in the container, reducing the installation overhead.
To optimise the plant synchronisation, WELTEC integrated the custom-developed LoMOS SPS control. One of the special features of this system is an SQL database-based task management: The user merely needs to enter his individual tasks for the biogas plant in the user-friendly calendar, after which the LoMOS control automatically executes the entries.
In view of the user-friendly operation and high-quality components, the builder and operator David Peterschmitt is very optimistic: „I am convinced that the technologies employed by WELTEC BIOPOWER will ensure optimum efficiency as well as permanently stable, economic operation of my biomethane plant.“
In 2015, WELTEC BIOPOWER GmbH, one of the first manufacturers of biogas plants, celebrated its 14th anniversary. WELTEC is one of the pioneers of the constructors of biogas plants. Based on the modern approach of experienced engineers, the company from Vechta, Germany with its expertise of a staff of close to 80, offers complete biogas plants from one source and has developed to a leading constructor of biogas plants in the world.
As the hydrogen sulphide and ammonia compounds contained in biogas corrode unprotected parts, WELTEC builds the digesters from stainless steel. This ensures a long useful life of the plant. The manufacturing depth also guarantees a consistently high standard regardless of the location and ensures an export rate that is far above the industry average.
The plants have a modular structure. WELTEC uses only proven system components and develops most of the technologies along the entire value chain internally: digester technology, mixing technology, control technology, hygienisation systems, and digestate processing solutions originate from the company.
By means of its comprehensive services, WELTEC ensures the technical and economic stability of the biogas plants. The CHP service guarantees stable output, the biological supervision ensures continuous monitoring of the relevant parameters, and systematic repowering makes sure that the biogas plant is always up to date. Operators can choose from a range of service packages of different types and scope.
One of the main strengths of WELTEC is the ability to deliver individual and flexible solutions worldwide – from compact plants to large computer-controlled plants in the megawatt range, waste recycling plants, and biogas parks with gas processing technology.
WELTEC BIOPOWER GmbH
Zum Langenberg 2
Phone: +49 4441/99978-220
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