Years of experience have shown that the reciprocating type agitation used by a KARR® Column is superior to rotating internals for systems that have a tendency to emulsify2. Selection of the column type is critical in order to optimize the performance and cost for the extraction process.
Three steps to a complete system design include:
- Solvent Selection and Laboratory Testing are necessary to generate the liquid-liquid equilibrium data and to evaluate the hydraulic behavior for the system.
- Pilot Plant Testing should be performed to generate data for accurate design of production equipment. Koch Modular handles this at its pilot facility in Texas.
- Complete System Design: Downstream distillation is usually required to recover the solvents for recycle and to selectively recover and purify the chemicals of interest. It is critical to have a good understanding of the composition of the LLE feed as well as the final compositions of both the extract and raffinate phases leaving the extraction column so that the distillation columns can be designed accordingly.
Bring your toughest biomass challenges to discuss at our booth at ACHEMA next month. We will have an extraction column on site and our subject matter expert, Don Glatz, available for detailed technical conversation.