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Biomethane in the fuel
filling stations

GM upgrading unit can be joined to new or existing fuel filling stations. The biome thane can be mixed with the fuel methane from the NG achieving the mixing target required by the biofuels. Furthermore the biome thane can be easily stored and transported to the filling stations not connected to the natural gas grids.

Difference
from the methane

Biomethane can be filled into the vehicles already utilizing the methane from NG as fuel without modification of the motors. In fact the biome thane has the same chemical and physical properties of the NG both containing almost pure methane.

Why choose
biomethane?

In general the biomethane is more expensive of the natural gas (NG) but being a non-fossil renewable energy source, which utilizes biomasses,

 
 

by-products and residues, makes valuable its utilization coupling in most of the applications the environmental sustainability with the profitability.

Biofuels
comparison

Nowadays the vehicles utilizing the methane from NG as fuel are achieving a reduction in the emissions by 21% and 24% respectively compared to the diesel and petrol fuel. In the near future the motors fed with a mixing of biomethane and NG can achieve a further 19% reduction in the emissions. The emissions in a vehicle fed with 100% of biomethane are 5 gr CO2 eq/km only as the electric vehicles.

 
 

A comparative analysis on the yield of the products from fermentation of biomass, expressed as km per hectare of dedicated farming, shows that the biome thane can achieve 67700 km which are three times the value achievable with the biodiesel (23300 km) and the bioethanol as well (22400 km). [Ref. Osservatorio Agroenergia – Il Biometano, Potenzialità, economics e prospettive di sviluppo]

Biofuels comparison:

Biomethane
67600 Km
Rapeseed Oil
23300 Km
Biodiesel
23300 Km
Bioethanol
22400 Km
Source: Fachagentur Nachwachsende Rohstoffe e.V (FNR)
Fuel consumption: Otto 7,4 l/km, Diesel 6,1 l/100 km

Injection into the natural
gas (NG) grid

Biomethane, after the required drying, odorization and correction of the Wobbe index can be injected into the NG grids connected to civil and/or industrial consumers. Depending on the location and on the rating of the grid, the biomethane must be compressed or depressurized. The pressure of the biomethane from the GM upgrading
unit, downstream the drying unit, is high enough to be injected into many distribution grids without any further compression which is on the contrary required with the upgrading technologies operating
at low pressure. The biome thane produced with domestic renewable resources can be used as a substituted

 
 

for fossil fuels profitability reducing the dependence from the import.
For the above the grid injection of the biome thane is worthy to be considered.

[Ref. Osservatorio Agroenergia – Il Biometano, Potenzialità, economics e prospettive di sviluppo].

 

The biomethane injected into the NG grid can be utilized in Cogeneration units for combined Heat and Power production (CHP) at higher efficiency compared to the “in situ” cogeneration systems. Furthermore the higher heating value of the biome thane makes
the cogeneration more efficient compared to the utilization of the biogas assuring, thanks to the higher gas purity, a longer life for the equipment.
[Ref. Osservatorio Agroenergia – Il Biometano, Potenzialità, economics e prospettive di sviluppo].

 

La maggior efficienza energetica del biometano rispetto al biogas è ancor più significativa considerando che l’attuale produzione di biogas avviene in impianti decentralizzati, in cui spesso l’energia termica prodotta dal cogeneratore non trova modalità efficienti di utilizzazione.

Reuse of

L’anidride carbonica in uscita dall’impianto GM è un gas al 99,9% di CO2; anziché essere scaricata in atmosfera, come accade per la maggior parte delle tecnologie di purificazione del biogas presenti sul mercato,

 

competitor processes, can be liquefied and sold at food grade on the market.
GM can offer a CO2 recovery package customized according to the client requirements.

Application

Nell’industria alimentare e delle bevande, l’anidride carbonica è impiegata per la gasatura e come gas di spinta nelle bevande, per la termoregolazione e il raffreddamento degli alimenti, per la surgelazione criogenica, per i trasporti refrigerati, ecc... Nella lavorazione dei metalli, l’anidride carbonica è impiegata quale gas protettivo nel processo di saldatura

 

ad arco elettrico. Nell’industria florovivaistica, l’anidride carbonica è impiegata per la crescita delle piante ottenendo piante più sane, accelerando la crescita e riducendo, di conseguenza, i costi operativi. Altre applicazioni si trovano nell’industria della carta, nel trattamento delle acque, nella pulizia criogenica e per l’estinzione degli incendi.
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