NORAM SO2 PLANTS & SULPHUR BURNERS
With more than 180 plants installed all over the world – the Cellchem sulphur burning plants are one of the most used technologies for production of sulphur dioxide (SO2). Available standard capacities range from 0.5 to 100 metric tons of sulphur burned per day and the design can be tailored to produce several downstream SO2 products. NORAM acquired this industry-leading SO2 – technology from Akzo Nobel (Eka Engineering) in 2013.
The demand for locally produced SO2 is increasing following the more stringent safety considerations related to transportation, storage and use of liquid SO2 applied in many countries. At NORAM we are dedicated to continuing the supply and support of this well proven, reliable and compact Cellchem sulphur burning technology.
KEY MARKETS SERVED
WE DESIGN AND SUPPLY COMPLETE SO2 PLANTS AND DOWNSTREAM OPTIONS
NORAM design and supply complete SO2 production units, including but not limited to sulphur melters and storage tanks, sulphur pumps, sulphur burners, SO2 gas quenching equipment, waste heat boilers, acidic and alkaline SO2 absorption towers, compressor system for SO2 gas liquification and mist elimination equipment. For capacities, up to ~10 MTPD sulphur burned, the equipment can be completely modularized (i.e. skid-mounted).
SO2 – production and downstream options
SULPHUR MELTING AND STORAGE
Sulphur melting equipment
Liquid sulphur storage
High-velocity combustion air was introduced tangentially to the combustion chamber, imparting a spiral path to the flame. The turbulence resulted in very effective mixing of the gas reactants, and a downstream afterburner made concentrations above 18 % SO2 attainable without risk of sublimation. A demand for burners with small capacity and compact design led to the introduction of the Cyclone Flame™ (Type CF) burner.
A number of refinements since then have led to the evolution of the current generation of burners.
Today SF burners in the capacity range of 5-100 MTPD of sulphur are standardized. Type CF burners are available in two standard sizes with operating capacity ranges of 0.5-4 and 1-8 MTPD of sulphur respectively.
Both the SF and CF burners can be pre-heated with a variety of fuels including diesel, LPG and natural gas. Owing to the compact design, the burners can be pre-heated to 500°C in as little as 30 minutes, after which firing of the sulphur can begin.
The Spiral Flame™ Sulphur Burner
The Type SF burner consists of the following main parts:
Filtered, molten sulphur is introduced into the combustion chamber in atomized form, by using compressed air. The sulphur gun, as well as the nozzles from combustion air, is specifically located within the combustion chamber to maximize burning efficiency and minimize space.
To react any remaining free sulphur, final combustion takes place in the after-burner chamber. This chamber consists of a bed of inert pebbles creating very high turbulence and an intimate mixing of the gases. Efficient oxidation of the remaining free sulphur is thus assured.
Typical flow sheet of an SO2 plant (based on liquid sulphur supply)
Heat Recovery Boiler
Appropriate material selection and extensive experience ensures reliable operation of the absorption systems.
High concentration SO2 gas
Summary – advantages of the Cellchem burners
High SO2 gas concentration, > 18 %
High turndown ratio
Available as skid mounted systems
Extensive reference list, 150+ installations
All inquiries relating to the NORAM Sulphur dioxide technology can be made to: