Raízen-Geo has awarded Italian company Sebigas the contract for the construction of a 17.5 MW biogas plant in Brazil.

Located in the city of Guariba, São Paulo State, the biogas plant will be in the area of Raízen’s second largest ethanol and sugar mill that processes more than 5 million tonnes of sugar cane per year, producing high volumes of vinasse, the main by-product generated from the production of ethanol.

The plant will receive 9,200 cubic meters of vinasse every day. The bioreactors will have a capacity to treat 500 tonnes of COD (chemical oxygen demand) per day, with a production of 187,000 Nm3 biogas in the 24 hour range.

The biogas will be used to produce 17.5 MW of electric energy which will be sold to the national grid. The digested vinasse will be used as fertiliser in the sugarcane plantation.

The solution implemented by Sebigas is suitable to treat organic industrial effluents with high rate COD and low pH, such us vinasse, POME, tapioca pulp and waste water, explained Lorenzo Pianigiani, Executive of Sebigas do Brasil.

“The solution offers stable and strong treatment of the by-product and efficient biogas generation. The system is also designed to handle variations in substrate flow and composition, in order to maintain and guarantee the daily biogas production and plant performances.”

rendering impianto

Source: Sebigas

João Alberto Abreu, Executive Vice-President of Raízen’s Ethanol, Sugar and Energy area, added, “Raízen reinforces its pioneering efforts in innovation and development in the sector with a focus on clean and renewable energy, in line with public policies.

“With this, we once again consolidate our role as protagonists of sustainability through circular economy, taking advantage of all the waste and inputs used in our processes in the generation of new products. In this way, we contribute directly to the environment by reusing industrial waste and creating sustainable products that help clean the Brazilian energy matrix.”

Marco Bonvini, Sebigas General Manager, stated, “We are extremely proud of this success which marks an important milestone for Sebigas, offering a valuable solution for a market leader in the sugar and ethanol production sector as Raìzen.”

“Most of all, this contract presents a completely new solution to the Latin American industrial sector, that can now increase its overall profitability while producing clean renewable energy utilising vinasse, one of the most common production by-products in this area.”

“Our Thai branch, SebigasUAC, in 2016 had already opened the doors to the use of tapioca pulp for the local industrial sector. Once again Sebigas has proven to keep up the pace with the fast-evolving markets in which it operates, providing innovative, profitable and sustainable market demand solutions.”

Mauricio Cótica, Cótica Executive Director, said, “The sugarcane industry is the biggest potential biogas market in Brazil, and this large-scale project reinforces our commitment to the development of biogas in Brazil and also in Latin America, as a source of renewable energy. We strongly believe in biogas as a viable solution for the environmental conversion of residues, wastes and by-products such as vinasse, into energy.”

With this last contract Sebigas counts a total of over 80 biogas plants worldwide with a future pipeline of 20 industrial plants to be supplied in the coming 3 years.