Our pulp & paper mill illustration shows you where our innovative solutions can help your business.
Click on the individual areas to see how we can assist you.
SOLVOCARB® pH control for wastewater treatmentOur SOLVOCARB wastewater treatment solutions are a cost-effective, environmentally sound way of controlling your pH with accuracy, facilitating on-site wastewater treatment processes, and avoiding scaling in your anaerobic treatment process. Controlling pH with carbon dioxide (CO2) is much more precise and easier than using strong mineral acids.
SOLVOX® aerobic wastewater treatmentYou can overcome bottlenecks at your plant by increasing capacity with our SOLVOX wastewater treatment solution. By adding pure oxygen (O2), SOLVOX increases the pollution load that can be treated and thus increases throughput in your plant.
ADALKA® process stabilizerOur patented ADALKA process stabilizer simplifies pH control in papermaking. It is based on a buffering solution, formed by combining carbon dioxide (CO2) and caustic soda (NaOH), which is added to the process to regulate and stabilize pH, alkalinity and calcium levels – offering more precise regulation and quality gains.
CO2 for PCC productionCustomers rely on our flexible main and backup supply schemes for carbon dioxide (CO2) to ensure security of supply for mission-critical production inputs such as precipitated calcium carbonate (PCC).
Neutralization with CO2 after alkaline boiloutAfter alkaline boilout, carbon dioxide (CO2) can be used to neutralize the alkaline washwater on the paper machine and/or on its way to the wastewater treatment plant, thus overcoming the many downsides of mineral acids for this process.
ACTICO® CO2 pulp washACTICO CO2 pulp wash boosts your capacity without necessitating new and larger washing equipment. The CO2 slightly reduces the pH value but keeps it within the alkaline band. This results in less swollen fibres and improved dewatering as more water is released from the fibres.
O2 delignificationCustomers rely on us for tailored oxygen (O2) supply schemes so they can start the bleaching process with oxygen delignification and thus reduce consumption of more expensive bleaching chemicals and, in turn, the effluent load from the bleach plant.
O2 for ozone generation (bleaching)An attractive alternative to chlorine-containing chemicals, ozone can be used to bleach pulp and achieve the necessary level of brightness. We supply the oxygen (O2) needed to generate ozone on site.
O2 for reinforcement of peroxide bleachingWe offer oxygen (O2) supply schemes to reinforce peroxide bleaching in both totally chlorine-free and elemental chlorine-free processes.
O2 for reinforcement of alkaline extraction stageTo improve the dissolution of lignin, you can add oxygen (O2) to the pulp in the alkaline extraction stage. This intensifies the bleaching effect and decreases the dosage of more expensive bleaching chemicals.
O2 enrichment for lime kilnsYou can increase the production rate of your lime kiln by adding oxygen (O2). This enables you to increase capacity without having to invest in expensive, high-tech equipment while also overcoming the downsides of purchasing more lime and the expense involved in disposing of lime mud surplus.
O2 for white liquor oxidationWe can help you enhance the efficiency of white liquor oxidation or increase capacity without heavy CAPEX investments by adding oxygen (O2) to the combustion air or by replacing the combustion air entirely with oxygen.
Soap acidulation with CO2 instead of H2SO4Black liquor soap skimmings are typically acidulated with sulfuric acid (H2SO4) to form crude tall oil (CTO). We can help you replace up to 50% of this highly corrosive substance with carbon dioxide (CO2) to improve the health, safety and environmental performance of your operations.
LOTOX™ NOx abatement technologyOur LOTOX technology is an end-of-pipe system that removes NOx by adding ozone to oxidize insoluble nitric oxide (NO) and nitrogen dioxide (NO2) to nitrous oxide (N2O). These oxides are not only very soluble but also reactive, so they can be easily removed along with other hazardous pollutants using conventional wet or dry scrubbers –offering NOx removal efficiency rates in excess of 95%.
Emissions control and analysisOur HiQ® specialty gases and equipment programme combines high-purity gases, accurate gas mixtures, precision-engineered gas supply systems and the high-quality services needed for optimum results in emissions control monitoring and for lab analysis.
MaintenanceWe have developed a range of dedicated cutting and welding gas mixtures for your workshop to ensure maximum productivity while protecting your welds and cuts against the effects of oxygen and nitrogen in the air.
Lignin separation with CO2Separate lignin from pulp by taking black liquor from the evaporation plant, lowering its pH with carbon dioxide (CO2) and then dewatering the precipitated lignin.
Steam reformer for H2 productionA leading supplier of steam reformer plants for the generation of hydrogen-rich synthesis gas, we have already installed more than 200 units with synthesis gas capacities ranging from 1,000 to over 120,000 Nm³/h.
Industrial services (purging, pigging, blanketing)We offer a range of purging, pigging and blanketing services that leverage the inerting power of carbon dioxide (CO2) and nitrogen (N2) to purge piping and reactor equipment in biorefineries.