(138a) Continuum Approach to Optimizing Downstream Final Drying with Upstream Solid-Liquid Separation
In the manufacturing of this specialty chemical, the crystals coming from the reactor in a methanol slurry must be filtered, washed and dewatered and then dried to a final moisture of less than 1.0 (<1.0 %). The standard approach would be to first look at the solid-liquid filtration step and optimize this step for the maximum washing and drying efficiency and then with this information optimize the downstream drying. The operating company, however, took a different approach and looked at the process as a continuum from solid-liquid filtration through cake washing and dewatering to final drying. The Continuum Approachâ resulted in operational energy and nitrogen savings as well as lower capital and installation costs for a more efficient and reliable process.
The overall approach illustrates a methodology for an optimization approach that can be used by engineers for chemical and pharmaceutical applications.
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