Testimonials to APS's Successes

  • Engelhard…:

    • "APS made 21 recommendations on altered methods of operating our (11' x 315') calciner. We have instituted most of these and as a result we have experienced increased control of our kiln and improved product quality. I would like to take this opportunity to thank you for your efforts and express the hope that we may work together again. G. E. Gantt Process Engineer, McIntyre Georgia."

  • American Cyanamid, Georgia:

    • "Upon completion of the APS study, we followed APS's recommendations. We were able to obtain a 28% fuel saving and an increase of production of 46% from our calcining kiln (12' x 200’). Savings in fuel and increase of capacity were in accordance with APS's computer simulations that were part of APS's report. We would not hesitate to recommend APS … P. T. Riffe Manager of Manufacturing."

  • Filtrol:

    • "At long last I am thanking APS for outstanding efforts on the design, construction and start-up of our calciner. All of the design objectives have been met or exceeded. Only by APS's talented and tireless efforts have we successfully converted a "sows ear" into "a silk purse." P. Chuberka Plant Engineer."

  • Kaiser Norco, Louisiana:

    • "Your field survey was completed in a most thorough and highly professional manner. The APS computer program determined the coke’s heat-up rate, coke bed burned within the kiln due to nozzle placement, dust loss, flame pattern, etc. The final report was discussed intensively in a one-day seminar attended by technical staff of the Carbon Division. The results have shown us where to make modifications and also where no alterations should be made. Our follow-up of recommendations on kiln internals has resulted in improved coke quality and density. H. H. Horil, Plant Manager."


  • Pfizer Inc., Saint Louis, Missouri:

    • "We appreciate the fine job that you completed for us working with our kilns (Indirect Fired) The most impressive part of your work was the thoroughness of your study by going into the chemistry of all reactions and then applying your expertise in kiln design to evolve a final design with all dimensions… Your report has the value of a textbook for all future kilns that we might want to build. Thank you for an excellent job well done. Harry S. Greiner Chief Chemist, located at Easton Pennsylvania"
  • CYTEC:

    • "After an exhaustive survey of our plant and equipment, APS came up with a list of recommendations that provided what we needed. APS's recommended these changes, told us what the cost would be, and told us in detail what the benefits would be. We followed APS's advice, and the results were beyond all our hopes. To date, we would like to report the following:
      • An overall, consistent, and greatly improved product.
      • More efficient and much better combustion.
      • 10% reduction in calcining costs.
      • More stable and "in control" operation.
      • 95% reduction in "dumping" poorly calcined material.
    • We also found that APS's concept and designs worked exactly as stated. Overall, Dr. Valliant, we are extremely pleased and would highly recommend APS's expertise to anyone. You may also use us as a reference, if you wish. Thank you for all your continued help and advice even after the project has been completed. When we procured your services, we wound up with a "friend for life."... (N. Keller, Plant Supt.), (J. B. Phillips, Plant Manager), (J.D. Rozelle, Production Manager Alum Operations.)"

  • Kaiser, Purvis Mississippi:

    • "After installing a draft augmentation unit with ejector and hot cyclones, an engineering order was given to APS with the objective of eliminating erratic operation (at both low and high kiln output) of the Purvis Coke Kiln. APS provided us with a simplified flow sheet indicating the type and location of additional measurements. Upon receipt of the completed data, APS then described modifications needed, which included:
      • Altering the ejector’s configuration
      • Modifying the cyclones
      • Increasing the fan’s capacity
    • The Kaiser staff implemented theses changes and reported that the kiln operation became steady, and that the emission was in compliance with government regulations. . . You saved Kaiser Aluminum both money and delivery delays by enabling them to run their calcining system at Purvis Mississippi, without interruption and at full capacity. Wishing Dr. Valliant the best of luck. I shall continue to recommend APS for solving process problems H. Horil Plant Manager. Norco. (APS was paid double the usual fee for this study!)