The pulp and paper industry is one of the largest industries in the world [1] and plays a significant role in our environmental landscape. In 2023, Europe’s pulp and paper industry emitted 86.4 million tonnes of CO2. Meanwhile, the United States and Canada, the world's largest producers of pulp and paper with 313 businesses, see their pulp mills emit approximately 144 million tonnes of CO2 each year [2].

The majority of pulp is produced through chemical pulping processes, with the Kraft pulping process being the most prevalent. This process results in large point source emissions, predominantly from the combustion of lignin that is separated from the cellulose during the pulping process. Other significant sources of emissions at a pulp and paper plant include the lime kiln, where lime mud is heated to recover lime, and potentially a bark- or auxiliary boiler. These can be fueled with various energy sources such as natural gas, coal, oil, or biomass.

Approximately 75 – 100% of the CO2 emissions from a pulp mill originate from biomass, depending on how the power boiler and the lime kiln are fueled. This opens up an exciting opportunity for reducing these emissions and even achieving negative emissions through Bioenergy with Carbon Capture and Storage (BECCS). BECCS works by capturing the CO2 emissions generated during the combustion of biomass that has absorbed CO2 from the atmosphere during photosynthesis. CO2 is then captured from the flue gas using post-combustion capture technologies, such as amine scrubbing technology. The interest in bio-based carbon capture has increased dramatically as the voluntary market for selling Carbon Removal Credits (CDR) is growing and large companies are buying these to offset emissions.

Amine-based CO₂ capture technology is a chemical capture method based on the reaction between an amine-containing solvent and the CO₂ in the flue gas. This technology is ideally suited for flue gases with a CO₂ concentration between 3.5 and 25%. Industry sectors within this window include pulp and paper, which typically has a CO₂ concentration of 12 – 20%, along with waste-to-energy, cement, coal, refinery processes and hydrogen production.

By harnessing innovative technologies like BECCS and amine-based CO₂ capture, we can make significant strides in reducing emissions in the pulp and paper industry and contribute to global sustainability efforts. SLB Capituri's modularized Just Catch™ 400 carbon capture plant is uniquely suited to address the needs of the pulp and paper industry. SLB Capituri's technology has been tested extensively, with over 60,000 hours of operation capturing CO₂ from 14 different flue gases of various quality and composition. This experience has given us a deep understanding of the unique challenges and requirements of CO₂ capture from different industries, including the pulp and paper industry.

The Just Catch™ 400 carbon capture plant, with a capacity of up to 450 000 tonnes CO₂ per year, is ideal for capturing the emissions from a typical pulp and paper mill.

Moreover, the Just Catch™ 400 plant is a standardized and modularized product. This design approach results in significant cost savings, both in terms of capital expenditure and operational costs. The standardized design allows for quicker manufacturing times, while the modular nature of the plant enables easier and quicker installation at the site. This not only reduces lead times but also minimizes disruption to existing operations.

In conclusion, the Just Catch 400 provides pulp and paper mills with an additional instrument for achieving their sustainability goals.

For further reading on CO₂ capture from the pulp and paper industry with the SLB Capturi technology, download our white paper here: SLB Capturi_Post-combustion CO2 capture

[1] U.S. pulp and paper industry - statistics & facts | Statista

[2] CaptureMap Endrava, endrava.com