Waste to Fuel

A new lease of life for organic waste
The Waste to Fuel pilot plant in Gela

Innovative technology at the service of circular economy

The commitment towards the regeneration of resources, in terms of recovery and reuse, is also actualised by Eni Rewind through Waste to Fuel technology, which is used to transform organic waste into bio oil and water
The technology was developed at the Eni Research Centre for Renewable Energies and the Environment in Novara and is currently being tested at the Gela Waste to Fuel pilot plant, commissioned by Eni Rewind in December 2018. An important step in Eni's new strategy, inspired by the efficiency, integration and use of new and more sustainable technologies which will lead to the construction of other large-scale Waste to Fuel plants, contributing towards the efficient and sustainable management of urban waste in large metropolitan areas. Agreements for the promotion of the circular economy and for the production requalification of sites and assets are part of this strategy which also includes the Memorandum of Understanding signed by Eni and Cassa Depositi e Prestiti in March 2019, for the start of high added value decarbonisation and climate change fighting projects.

The raw material necessary for the process which takes place inside the Waste to Fuel plant is called OFSUW, which stands for Organic Fraction of Solid Urban Waste, and consists of left over food as well as waste from the agrifood industry. Up to 14 kilos of bio oil can be obtained from 100 kilos of organic mass; it can be used directly as ship fuel, or used to produced advanced biofuels. Water, naturally contained in organic waste (up to 70/% of total weight, which is why it is referred to as "humid waste") is fully recovered for industrial and irrigation use.

The first large-scale plant in Porto Marghera

Eni Rewind and Veritas, a Veneto-based multiutility which collects, transforms and treats waste in the Venice area, have signed an agreement for the construction of an industrial Waste to Fuel plant in Porto Marghera, which will transform up to 150 thousand tons of organic waste per year into bio oil and water.


The advantages of Waste to Fuel technology

The Waste to Fuel programme fully complies with all circular economy requirements insofar as it enables the reuse of primary waste material without depriving the food and farming supply chains of resources, because used biomasses are not sourced from field production or harvested crops.

Most of the energy potential of waste is recovered compared to other technologies
Inbound waste is converted in a short time (2-3 hours on average)
Limited odorous impact in the plant, limited to a confined area where OFSUW is conferred. Air is treated and purified after the operation
Limited ground use: <0.3 m2/ton OFSUW/year) compared to biogas or composting plants
Lower CO2 emissions (-70%) compared to the production and use of bunker oil from fossil sources
Separated and treated water is suitable for irrigation or industrial use
For each 100 kg of OFSUW 45 kg of CO2 are saved in the use of produced bio oil compared to fossil fuel diesel

How does the process work?

In just a few hours, Waste to Fuel technology imitates the natural process with which the Earth generated hydrocarbons from ancient organisms over millions of years. Thermoliquefaction is the heart of this technology, a thermochemical process in an aqueous solution which transforms inbound biomass into a sort of "biological oil", bio oil. In this video Aldo Bosetti from Eni provides a step-by-step explanation of the process, live from the pilot plant.



Visit the dedicated section


Eni Rewind S.p.A. - Company subject to direction and coordination by Eni S.p.A.

Registered office
Piazza Boldrini, 1
20097 San Donato Milanese (MI)

Company Share Capital
€ 355.145.040,30 fully paid up

Tax identification and Milan-Monza-Brianza-Lodi Business Registry
no. 09702540155