LignoBoost® - lignin from pulp mill black liquor
Wood is a composite of cellulose fibers embedded in lignin, a natural glue that keeps the fibers together. In a pulp mill, the cellulose fibers are extracted and converted into pulp while the lignin is burnt in the recovery boiler. The energy is used in the pulp mill’s processes. Every year, more than 70 million tonnes of lignin pass through the world’s pulp mills. LignoBoost® allows mills to extract lignin and sell it in a wide range of profitable businesses.
Lignin is a renewable organic material that can be used in much the same ways as fossil-based chemicals derived from petroleum products. But because it is extracted from wood, a product made from lignin has a lower carbon footprint. Another advantage of some lignin-based products is that they can be designed to degrade if released into the environment.
Lignin has been studied for a long time and tested in many applications. Some examples are:
LignoBoost is a technology that enables lignin to be extracted from the Kraft pulping process. LignoBoost is proven and reliable, and has been developed with several industrial partners.
LignoBoost plants in operation
There are four LignoBoost plants in operation today. The Valmet-built LignoBoost plants in Finland and the USA are built for the commercial production of lignin and have a combined design capacity of 75,000 tonnes of lignin per year. Valmet has also recently built a smaller plant in Brazil. The world’s first LignoBoost plant was built by RISE (then Innventia).
|RISE LignoDemo Sweden
Tailoring the lignin to a certain quality
Extracted lignin can be tailored to match the intended end use. This is done with lignin tailoring processes developed by Valmet and its industrial partners. The tailoring processes can be supplied with new LignoBoost plants or installed as upgrades to existing ones.
Bringing our customers’ performance forward
The goal of Valmet is to bring our customers’ performance forward, and LignoBoost can help pulp makers create profitable new and renewable products. To learn more about the possibilities of lignin or to get help in developing your lignin business, get in touch with us through the “contact us” pages above or your local Valmet office.
Valmet LignoBoost XS: Concept development and experience with first plant delivery
This article is a summary of a paper which will be presented at the International Chemical Recovery Conference ICRC in Brazil in 2021.
Pioneering lignin extraction at Klabin Technology Center – with Valmet LignoBoost XS
A new demonstration-scale LignoBoost plant helps Klabin to further study the possibilities of lignin.
Taking the circular economy forward - Decreased need for non-renewables
The main idea of the circular economy is about taking into use as few new materials as possible, using existing material flows longer and minimizing waste.
Sunila makes the most out of lignin
Stora Enso’s Sunila Mill produces kraft lignin with Valmet’s LignoBoostTM technology. In 2018, Stora Enso launched their dry lignin product, LineoTM by Stora Enso, which is an excellent alternative to fossil-based materials.
Lignin Upgraded – new lignin qualities with LignoBoost
Valmet’s LignoBoost process has been developed further and new process concepts can tailor the extracted lignin into different qualities. This gives new options for kraft pulp mills to go into new businesses.
Valmet can supply commercial-scale lignin extraction plants, and we can also support the development of your lignin business from the very outset.
LignoBoost® is a patented process that produces lignin with characteristics that can be matched to the intended use.