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Burners in action at mills

Burning for maximum environmental efficiency

A green transition doesn’t need to be complex and costly. When burners are designed to utilize a wide variety of fuels and industrial side streams, it is possible to significantly improve the plant’s environmental efficiency from the next shutdown onwards.

ANDRITZ burners are made to last in extreme conditions

Efficient combustion requires advanced burner solutions

Burners are an often forgotten but essential element in industries requiring heat in boilers, furnaces, and other processes. These crucial pieces of equipment play a major role in ensuring plants operate smoothly and efficiently, burning a full range of fuels to enable the generation of heat and energy for internal use or to supply the grid. Today, burners also play a major environmental role as many industries switch to renewable fuels, and they are often installed to handle side streams from production processes. 

ANDRITZ develops, designs, and installs tailor-made burner systems capable of burning almost any fuel available, which is appealing for any industries and companies looking to transform away from fossil fuels.

“We have a great team designing and tailor-making burners to suit a wide variety of applications,” says Lauri Tuominen, Director Recovery and Power Side Streams Services at ANDRITZ. “These burner solutions are vital to our projects related to reducing odor emissions at pulp mills, and to reducing carbon emissions by performing a fuel conversion to biofuels.”

ANDRITZ provides the whole range of burner systems across many industries, including pulp and paper, energy, metallurgy, and process industries. With a deep understanding of the customer processes and the ability to deliver bespoke burner solutions including erection, piping, pressure pipe modification, and automation, ANDRITZ sets itself apart from other suppliers.

“When customers have very demanding and harsh process conditions, we ensure our equipment is the perfect fit for their needs. We can achieve fuel flexibility without needing to carry out significant modifications to the main process. In addition, we can assist customers in the introduction of side streams to bring additional value to their mills and plants,” says Perttu Jukola, Product Director, Burners at ANDRITZ.

Dust feeding

Dust feeding

SUSTAINABLE FUELS – SIGNIFICANT BENEFITS TO CUSTOMERS

As well as burner systems for boilers in pulp, paper, and energy, ANDRITZ supplies burner solutions designed to utilize industrial side streams, biofuels, and other sustainable fuels. Generating green energy results in the reduction of CO2 at mills and plants. Even streams previously considered as waste can be processed to produce valuable chemicals and raw materials instead of going for incineration.

“The use of side streams has become an important area of focus at pulp mills, in particular, as they are being rapidly transformed into biorefineries. This is due to the ability these mills have to recover chemicals and biofuels from the pulping process,” says Jukola. “This has a number of financial benefits to our customers as it means they can avoid emission penalties set by the regulators, as well as use recovered side streams in internal processes.”

Prime examples of burners in action at mills now include:

  • Gathering concentrated non-condensable gases (CNCGs) and combusting them with burners installed in ANDRITZ SulfoLoop plants to produce sulfuric acid
  • Using methanol and turpentine recovered from the pulping process to fire recovery boilers and lime kilns
  • Utilizing powdered wood from woodyard waste to power the lime kiln by installing ANDRITZ LimeBio-Powder lime kiln biofuel plant

Our experts ensure a smooth project.

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EnviroBurnerTM multifuel solutions

COMPLETE OFFERING FOR ALL BURNER NEEDS

Thanks to ANDRITZ’s vast experience in burner technologies, pulp and paper operators and energy companies now have a considerable range of options for burning almost any fuels available, including waste streams. Furthermore, ANDRITZ offers a complete burner replacement service for existing boilers at mills and energy plants by installing the latest technology to improve performance.

Tuominen says, “Simply replacing older burner technology in existing mills and plants can make a huge difference to the availability of processes when it comes to start-up times, and efficient operability. With burner upgrades we can increase availability from below 90% up to 99% with the installation of our latest burner technology, and it can be completed during a normal planned shutdown.”

Jukola concludes, “There are many benefits our customers can take advantage of when utilizing side streams across mills, including new products, fuel savings, and efficiencies, as well as reducing CO2 emissions. ANDRITZ can supply complete burner solutions across mills and energy plants to ensure our customers have the very best in sustainable solutions.”

ANDRITZ has over 250 references of its multi-fuel burners worldwide, including:


Billerud – Frövi, Sweden:
Bio-oil as boiler auxiliary fuel


Klabin – Ortigueira, Brazil:
Sulfuric acid production


Resolute – Saint-Félicien, Canada:
Bioheat from wood


Sofidel – Kisa, Sweden:
Syngas for tissue drying with a CO₂ reduction of up to 10,000 t/a


Tornion Voima – Tornio, Finland:
Air emission and CO₂ reduction

Bio-oil preheating

GETTING TECHNICAL

ANDRITZ BURNER PORTFOLIO

START-UP AND LOAD BURNERS


Designed for the demanding environment in fluidized bed and recovery boilers, mainly for Bubbling Fluidized Bed (BFB) and Circulating Fluidized Bed (CFB) technology boilers and biomass gasifiers

Structures and materials are developed to withstand mechanical wear, chemical erosion and the furnace heat for each specific application.

BURNER SOLUTIONS FOR BIOFUELS AND ALTERNATIVE FUELS

  • Burner technology for bio-oils, e.g., tall oil, pitch, vegetable oils
  • Burner technology for biomass powders, e.g., wood and sander dust as an auxiliary or stand-alone fuel
  • Compact burner solution for combustion of low calorific value gases without additional fuel, e.g., gasification product gas and process gases
  • Burner technology for hydrogen, methanol

BURNER SOLUTIONS FOR SIDE STREAMS

  • Burners for non-condensable gases, especially pulp mill concentrated NCG (CNCG/LVHC gas)
  • Combined sulfur-CNCG burner for SulfoLoop™ sulfuric acid plant
  • Incinerator technology for pulp mill concentrated and diluted NCGs, as well as other gases and liquids
  • Enclosed flare incinerators for back-up with rapid start-up



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