Ethanol is globally the most widely used and well-known biofuel. It is liquid fuel that replaces gasoline directly in existing usage. There is no large investments needed for distribution networks.
The performance qualities of St1’s waste-based advanced ethanol are superior compared to most other alternative biofuels and it generates up to 90% less CO2-emissions than conventional fossil fuels. It has the possibility to vastly reduce fossil fuel -based GHG-emissions in a fast way.
St1 is focusing on ethanol production technologies that utilize biowaste and residues. Our ongoing research and development projects increase the capacity of ethanol production as new feedstock and plant technologies become available. Suitable feedstock is found in every country in the world. The biggest potential in the future can be seen in the use of forest industry residues.
In addition to high quality fuel, depending on the feedstock, our biorefineries generate fodder, energy or heat as a side product.
Forerunner in ethanol biorefining solutions
St1’s Advanced biofuels is a forerunner in waste-based ethanol production technology. Our mission is to replace fossil fuels in a competitive and sustainable way by producing renewable ethanol cost-efficiently from waste and residues. We only use feedstocks that are outside the food chain and will not cause any direct or indirect land use changes.
Our expertise lies within biochemical processes, technology development, engineering, and project delivery. We have developed several technological concepts and repeatable solutions to produce advanced ethanol for traffic use. Our solutions lower the expenses of waste handling for those companies who supply feedstock for the process.
St1’s biorefining concept results in almost carbon-neutral renewable ethanol – thanks to waste as feedstock and the use of renewable energy in heat and power generation. Energy efficiency has been one of the top priorities in our technology development. As waste is local, the transportation needs are minimal.
Each of our biorefining concepts is based on different type of waste-based feedstock. We continue their development and testing in our own biorefineries in order to constantly improve the production processes.
Our Cellunolix® biorefining concept is a concrete step towards commercial cellulosic ethanol production. St1 is a forerunner in technology that enables the use of sawmill side products, such as sawdust and chips from soft wood, in renewable ethanol production in the near future.
Ethanol production from lignocellulose has technically been available earlier, however, the production costs haven’t been at competitive level. Our technology is able to cut those costs and furthermore, it enables cost efficient logistics and limited capital exposure.
We have built first of a kind Cellunolix® demonstration biorefinery on the Renforsin Ranta industrial estate in Kajaani, Finland. It utilizes sawdust from local sources as feedstock and the annual production capacity is 10 million litres. The production generates side products, such as lignin which will be used for local electricity and heat production. The pilot plant started production of advanced ethanol in 2017.
St1’s Etanolix® concept refines waste and residues rich in starch and sugar into 99,8% advanced ethanol that is ready for use in high blend ethanol fuels or as a bio component in low blends. An Etanolix® plant can be set up as stand-alone plant or it can be integrated with production which generates suitable feedstock for ethanol production – such as fermentable waste and process residues from bakeries, breweries and beverage production as well as retail waste, for example surplus bread and sorted bio waste. This biorefining concept results liquid animal feed and biogas as co-products.
We have four Etanolix® biorefineries in production in Finland (in Jokioinen, Lahti, Vantaa and Hamina) and one that is integrated into our refinery in Gothenburg, Sweden. The annual production capacity varies between 1 to 9 million litres.
Municipal and retail biowaste based ethanol production
The Bionolix® biorefining concept makes it possible to produce advanced ethanol from municipal and commercial biowaste.
The Bionolix® process recycles packed and unpacked municipal and retail biowaste into ethanol, a base chemical that can be used for various applications. The stillage from the process can be used to produce biogas for local energy needs, such as electricity and district heating. Also the side product of biogas production may be utilized as an organic soil conditioner to fertilize land.
The Bionolix® technology is being tested and operated since 2010 in Karanoja waste treatment area in Hämeenlinna, Finland. Hämeenlinna Bionolix® plant is integrated with a biogas plant and has annual production capacity of 1 million litres of advanced ethanol
Advanced ethanol that is made from waste reduces CO2-emissions by up to 90% compared to fossil fuels. The lifecycle emissions are reduced by using waste and process residues as a feedstock and therefore 0-emissions can be calculated for the feedstock.
Furthermore, there is no direct or indirect change in farmland usage. In accordance with the EU Renewable Energy Directive (2009/28/EC), in terms of biofuel obligations, the contribution made by biofuels produced from waste and residues can be counted double towards the biofuel obligations.
Replacing fossil fuels with renewable energy sources is inevitable. The demand for biofuels will continue to grow, thus increasing the pressure for imported feedstock and fuel. Biofuels obligations and the taxation of different fuels vary from one country to another. However, the origin and method of production have a great impact on how biofuel is perceived. Advanced ethanol that is locally produced from waste and process residues evidently has a sustainable life cycle, from production to the end-user.
The best value for waste
Waste is more than energy. It is feedstock in ethanol production through advanced recycling technology. Biodegradable waste can be put into efficient use with our production technology to become fuel. The biorefineries generate also side products, such as animal feed or green energy and soil conditioner when combined with a biogas plant.
Recycling waste and residues into advanced ethanol increases the value of waste and responds to the growing need of domestic biofuels. Production of advanced ethanol is modern and sustainable waste management. It is clean and easy solution to recycle waste locally.