Instead of incinerating by-products from pulp production for energy generation, low-carbon biomass-based chemicals like turpentine and tall oil can be sold as secondary raw materials. These renewable by-products are highly valued as a substitute for fossil fuel-based materials. They can be used internally for energy generation or extracted, purified and sold as higher secondary raw materials. This is part of our circular economy approach.
During the pulping process, we separate tree resins from other wood components. These resins can be extracted as sulphate soap which, when treated with sulphuric acid, produces tall oil. Tall oil is used by refineries to produce products like coatings, adhesives, oilfield chemicals, plastic resins and biodiesel. At Mondi Syktyvkar, we’ve invested in a tall oil plant, which can produce around 40,000 tonnes of crude tall oil per year. The oil will partly be used in production and partly supplied to refineries as bio-feedstock – directly replacing fossil fuels like crude oil and natural gas and saving about 140,000 tonnes CO2e annually.