DEC.DST™ • distillation systems for solvent recovery

distillation systems for solvent recovery
DEC.DST™

Distillation is the most widely-used method of separating fluid mixtures on a commercial scale, it is thus an important part of many processes industries, including the packaging, chemical, oil and gas, and pharmaceutical sectors.

DEC.DST™ industrial solvent distillation systems are specifically designed to break down solvent mixtures into their individual components. This process allows for the recovery and reuse of valuable solvents, while also generating high-purity products for various applications.

Maximize your solvent recovery efficiency with our advanced distillation systems. We provide tailored solutions for industrial applications, focusing on optimizing column performance and ensuring high-purity product output. Whether you're seeking cost-effective systems for ethyl acetate or ethanol recovery from flexible packaging operations or need to troubleshoot existing units for azeotropes recovery in converting industries, our expertise ensures a seamless process. Discover how our energy-efficient distillation methods, coupled with our deep understanding of packed columns and fractional distillation, can significantly reduce your operational costs and environmental impact. Contact us for a customized solution and achieve substantial returns on your solvent recovery investment.

DEC.DST™ • distillation systems • batch (MPD™) | continuous (SPD™)

The distillation systems are coupled with the solvent recovery plants, in order to separate the mix of "raw" recovered solvents. If the solvents are soluble (totally or partially) with water, in order to increase the overall efficiency, the use of our DEC.ADM™ dehydration systems may be considered, so to remove the residual water content in the raw recovered solvent (coming from the humidity), before feeding the distillation plant.

DEC.DST™ • distillation systems | configuration

The following processes are available (stand-alone or multi-effect configuration):

DEC.DST-a™ - atmospheric distillation;

DEC.DST-p™ - pressure distillation;

DEC.DST-v™ - vacuum distillation;

DEC.DST-e™ - extractive distillation;

DEC.DST-r™ - reactive distillation;

DEC.DST-re™ - hybrid reactive-extractive distillation.

DEC.DST™ • distillation systems | smart processes & technologies

When facing azeotropic mixtures (an azeotrope is a mixture of two or more compounds that cannot be separated or changed by simple distillation), different configurations of the distillation system shall be applied: some of the azeotropes require a change in the exercise pressure of the distillation system, known as pressure swing distillation (DEC.DST-p™ and/or DEC.DST-v™), while some require an additional solvent, an entrainer, known as extractive distillation (DEC.DST-e™): these processes are known as azeotropic distillation systems. When extractive distillation is the solution, the quantity, cost and availability of the entrainer should be considered. The solvent(s) should be easily separable from the entrainer, and should not react chemically with the components or the mixture fed to the distillation system. Traces of the entrainer, always remain in the distilled product, thus representing a contamination if the solvent shall comply with severe codes (i.e. food contact, tobacco, pharamceutical): in this case, extractive distillation shall not be considered as a valid option.

DEC.DST™ • Enhanced Approach to Distillation Process Optimization

Our approach to distillation process engineering transcends theoretical modeling, delivering tangible, real-world results. We leverage a powerful combination of:

State-of-the-Art Process Simulation: we employ some of the world's most advanced process simulators, enabling precise prediction and optimization of distillation performance;

Comprehensive Data Integration: our internal database is seamlessly connected to leading Research Institutes and Universities, ensuring access to the latest scientific advancements and empirical data;

In-House Experimental Validation: our dedicated DEC LAB facilitates hands-on experimentation and validation, bridging the gap between simulation and reality. This ensures that our results are not merely theoretical projections, but are grounded in practical, measurable outcomes.

This integrated approach, coupled with our extensive engineering expertise, empowers us to deliver "true and realistic" results, precisely tailored to each client's unique requirements.

DEC.DST™ • case-specific optimization and product quality

We understand that every distillation process is unique. Therefore, we conduct thorough, case-by-case analyses to determine optimal operating parameters, including:

Column Design: precise determination of the number of columns required for efficient separation;

Stage/Packing Optimization: accurate calculation of the number of theoretical equilibrium stages, translated into the appropriate selection of structured packing and the optimal height;

Product Optimization: tailoring process parameters to maximize product purity, efficiency (yield), and energy recovery.

DEC.DST™ • stringent product quality standards for direct reuse

Recognizing the critical importance of product quality for reuse in the productive cycle, we ensure that distilled products consistently meet stringent requirements:

High Purity: achieving desired product purity levels through precise process control, including Gas Chromatograph in-line Process Analyzer;

Maximum Efficiency: optimizing energy utilization and minimizing waste;

Effective Energy Recovery: implementing strategies to recover and reuse energy, reducing operational costs and environmental impact.

By combining advanced simulation, experimental validation, and a deep understanding of distillation principles, we provide our clients with optimized solutions that deliver exceptional product quality and operational efficiency.

DEC.DST™ • LTKW

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