Upgrading of biogas in biomethane at the Roma Nord Purification Plant

A tank at the source of the Rome North water treatment plant with an orange iron bridge on which workers are working and trees in the background. A tank at the source of the Rome North water treatment plant with an orange iron bridge on which workers are working and trees in the background.

Description and objectives

 

This project focused on the construction of a new sector for the upgrading of biogas in the Roma Nord purification plant, located downstream of a new dedicated pre-treatment section. The plant has been designed to improve energy efficiency, reduce environmental impact, and optimise service charges, continuously generating around 1,400,000 Sm³ per year of biomethane.

 

Project details

Biogas upgrading line with nominal capacity of 260 Nm³/h.

 

Control and measurement cabinet (REMI cabinet) for controlling the quality and quantity of biomethane fed to the network.

Post-combustion section of the off-gas exiting the upgrading membranes.

 

Project details

Customer

Acea Ato 2

Site

Municipality of Rome

Timetable

Start: February 2023
End: Dicember 2023

Detail of the service

Engeneering services during the execution of works (Works Management)


Procurement of services and supplies, and the coordination of all the work necessary to provide the Customer with the finished work in a state-of-the-art manner.

Key numbers

 

  • Service execution quota: 100% Acea Infrastructure SpA

     

  • Amount of works: 5.885.500 € (di cui 118.300 € costi della sicurezza)

     

  • Nominal flow rate of wet biogas entering the line

     

  • Average volume content of CH4 in wet biogas: 65 %

     

  • Average volume content of CO2 in wet biogas: 30 %

     

  • Average volume content of CH4 in biomethane: > 97 %

     

 

  • Guaranteed purification efficiency > 99,3 %

     

  • Average volume content of CH4 in the off-gas: < 2 %

     

  • Hours of plant operation per year (expected value): > 8000 h/anno

     

  • Hours of plant operation on a daily basis: 24 h/giorno

     

  • Max expected biomethane potential on an annual basis: 1.400.000 Sm3/anno

 

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