Sturtevant and Malvern Instruments Combine Expertise for Optimal Sorbent Milling
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2 July 2009: Malvern, UK: Sturtevant Inc, (Mass, US) a well-established manufacturer of material processing equipment, is using an Insitec on-line particle size analyzer from Malvern Instruments to tailor solutions for specific customer applications. A particular success is the development of an optimized mill for processing Trona, a reactive sorbent for the removal of harmful pollutants from flue gas. The installed solution provides effective pollution abatement at competitive cost.
"For us, on-line particle size analysis provides maximum process insight with minimal manual input," said Steve Coulombe, Product Manager from Sturtevant. "This knowledge accelerates and improves product and process optimization allowing us to provide an even better service to customers. The solution developed for Trona milling is a great example of what can be achieved and has great potential towards becoming a standard within the power plant industry."
Injecting Trona (sodium sesquircarbonate) directly into a flue gas stream removes sulphur trioxide ahead of desulphurisation, reducing the likelihood of 'blue plumes' and decreasing levels of acid rain. At-plant trials with a Simpactor 6HD impact mill and an Insitec on-line particle size analyzer, show that the mill can successfully handle feeds of varying coarseness, producing a consistently fine material that minimises injection levels. Low levels of spent sorbent in the fly ash waste permit its incorporation in cement making the stream a saleable by-product, or reduce waste disposal costs otherwise.
"Trials at the power plant were extremely successful," remarks Alon Vaisman, the expert who led the trial from the Malvern side. "With on-line particle size analysis in place the customer could see how the process was performing in real-time and the consistency of the product. The developed solution is excellent since it minimizes both emissions and operating costs."
The Insitec is a laser diffraction system for the on or in-line measurement of particles in the size range 0.1 to 1000 microns. Capable of delivering four complete particle size distributions per second it can track even rapidly changing processes in real time, providing a data stream for optimal process control. Fully automated analysis from sample extraction through to measurement minimises manual input.
For further details of the Insitec system visit www.malvern.com
About Malvern Instruments
Malvern Instruments provides a range of complementary materials characterization tools that deliver inter-related measurements reflecting the complexities of particulates and disperse systems, nanomaterials and macromolecules. Analytical instruments from Malvern are used in the characterization of a wide variety of materials, from industrial bulk powders to nanomaterials and delicate macromolecules. A broad portfolio of innovative technologies is combined with intelligent, user-friendly software. These systems deliver industrially relevant data enabling our customers to make the connection between micro (such as particle size) and macro (bulk) material properties (rheology) and chemical composition (chemical imaging).
Particle size, particle shape, zeta potential, molecular weight, chemical composition and rheological properties measurements are now joined by advanced chromatography solutions (GPC/SEC), extending Malvern's technologies for protein molecular weight, size and aggregation measurements, and synthetic polymer molecular weight and distribution. The company's laboratory, at-line, on-line and in-line solutions are proven in sectors as diverse as cement production and pharmaceutical drug discovery.
Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Korea and Japan, a joint venture in India, a global distributor network and applications laboratories around the world. www.malvern.com
About Sturtevant Inc.
Headquartered in Massachusetts, USA, Sturtevant Inc. is a family-owned manufacturer of material processing equipment including crushers, fine grinders and air classifiers. Since 1883, the company has provided processing solutions to the chemical, pharmaceutical, food and mineral powder processing industries worldwide. Sturtevant offers a full line of size reduction equipment. From large coarse particle crushers to a patented sub-micron Micronizer®, Sturtevant custom engineers units suited to the widest range of applications. If an operation requires particle separation through air classification, Sturtevant produces three different kinds of air classifier systems. Time-tested - proven success.
Sturtevant customers come to know the kind of excellent back-up service that has become the hallmark of the Sturtevant name. Technical people will be invited to the Sturtevant facility for complete hands-on experience, equipment operator training and technical presentations. The test facility in Hanover, Massachusetts is capable of milling or air classifying dry solids. Every step of the way, qualified laboratory technicians will optimize customer's equipment capacity and communicate wear-protection and material-handling requirements.
Sturtevant's service technicians are available to assist in the installation and start-up of new equipment. In addition, when needed, qualified Sturtevant service technicians will provide comprehensive field inspections to evaluate equipment condition and recommend adjustments and/or parts replacement. Manufactured to strict original factory specifications, Sturtevant's OEM replacement parts ensure safer operation with less downtime and carry full factory warranties. Service capabilities include the rebuilding and remanufacturing of entire machines or sub-assemblies to original factory specifications should that become necessary.
Founded by Thomas L. Sturtevant, the company is currently managed by W. Sturtevant English, Jr., the fifth generation from the company's founder. Mr. English is always available for consultation for any questions or concerns.
For press information, please contact:
Trish Appleton, Kapler Communications
Knowledge Centre, Wyboston Lakes, Great North Road,
Wyboston, Bedfordshire, MK44 3BY, UK
Tel: +44 (0)1480 479280;
Fax: +44 (0)1480 470343
trish@kapleronline.com
USA contact:
Marisa Fraser,Malvern Instruments Inc.
117 Flanders Road, Westborough,
MA 01581-1042 USA
Tel: +1 508 768 6400
Fax: +1 508 768 6403
marisa.fraser@malvern.com
Please send sales enquiries to:
Alison Vines,
Malvern Instruments Ltd
Enigma Business Park, Grovewood Road,
Malvern, Worcestershire WR14 1XZ UK
Tel: +44 (0) 1684 892456;
Fax: +44 (0) 1684 892789
salesinfo@malvern.com
