# DyssolTEC > DyssolTEC builds simulation software for solids and particulate processes — DyssolPro (macroscale flowsheet simulation) and MUSEN (microscale GPU-accelerated DEM) — and works as a particle process-engineering partner across pharma, chemicals, food, and minerals. DyssolPro is a dynamic flowsheet simulator for solids processes: it resolves particle size distribution (PSD) and stream properties across connected unit operations over time, and runs calibration, sensitivity, optimization, and scale-up studies. It is not a CFD, mechanical-strength, or equipment-sizing tool. MUSEN is a GPU-accelerated discrete element method (DEM) tool for microscale particle simulation. Services cover custom model development (Model Maker), scale-up and debottlenecking, full-plant simulation, and training. ## Core pages - [Home](https://www.dyssoltec.com/): Company overview, products, and services. - [DyssolPro — flowsheet simulation software](https://www.dyssoltec.com/the-software/): The dynamic solids-process flowsheet simulator and its library of implemented process units. - [DyssolFree — free edition](https://www.dyssoltec.com/dyssol-free/): Permanently free, feature-capped edition of Dyssol for evaluation and learning, no time limit. - [DyssolAcademic — academic licensing](https://www.dyssoltec.com/the-software/#dyssol-academic): Full DyssolPro feature set for universities, with campus and institutional licensing for teaching and non-commercial research. - [MUSEN — DEM particle simulation](https://www.dyssoltec.com/musen/): GPU-accelerated discrete element method simulation of particle systems. - [Services](https://www.dyssoltec.com/services/): Custom model development, scale-up, debottlenecking, full-plant simulation, and training. - [About us](https://www.dyssoltec.com/about-us/): The company and team behind DyssolPro and MUSEN. - [Jobs](https://www.dyssoltec.com/jobs/): Open positions in particle process engineering and simulation. - [Contact](https://www.dyssoltec.com/contact-us/): Get in touch or book an appointment. ## Unit operation pages Model-grounded pages for each implemented DyssolPro process unit — particle-level physics, the simulation model, equipment it represents, typical engineering studies, and a 20-item technical FAQ. German versions exist at the same path under `/de/`. - [Agglomerator](https://www.dyssoltec.com/granulation/agglomerator/): Population-balance size enlargement by particle collision and coalescence, with selectable kernels. - [Crusher & mill](https://www.dyssoltec.com/size-reduction/crusher/): Comminution and PSD reshaping with the Bond, Cone, and Multi-purpose models. - [Granulator](https://www.dyssoltec.com/granulation/granulator/): Batch and continuous fluidized-bed layering granulation by population balance. - [Fluidized bed spray granulator](https://www.dyssoltec.com/granulation/fluidized-bed-spray-granulator/): Two-zone layering granulation with coupled drying. - [Roller compactor](https://www.dyssoltec.com/granulation/roller-compactor/): Dry granulation via Johanson rolling theory (nip angle, ribbon porosity). - [Screen](https://www.dyssoltec.com/classification/screen/): Size classification with Plitt, Molerus–Hoffmann, Probability, and Teipel–Hennig partition curves. - [Air classifier](https://www.dyssoltec.com/classification/classifier/): Gravity and impeller-wheel size classification by settling velocity. - [Cyclone separator](https://www.dyssoltec.com/classification/cyclone-separator/): Gas–solid separation by the Muschelknautz method, with pressure drop. - [Disk separator](https://www.dyssoltec.com/classification/disk-separator/): Disk-stack centrifuge clarification (Leung, Schubert) by size and density. - [Gas filter](https://www.dyssoltec.com/classification/filter-gas/): Dynamic baghouse/cartridge dust filtration with Darcy pressure drop. - [Liquid filter (cake filtration)](https://www.dyssoltec.com/classification/filter-liquid/): Solid–liquid cake filtration with washing and deliquoring. - [Decanter centrifuge](https://www.dyssoltec.com/classification/decanter-centrifuge/): Dynamic two-zone solid–liquid dewatering (sedimentation + compressible cake). - [Spray dryer](https://www.dyssoltec.com/drying/spray-dryer/): Co- and counter-current spray drying with compartment heat/mass transfer. - [Fluidized bed dryer](https://www.dyssoltec.com/drying/fluidized-bed-dryer/): Dynamic two-phase fluidized-bed drying with Nusselt/Sherwood transfer. - [Rotary kiln](https://www.dyssoltec.com/drying/rotary-kiln/): Compartmented calcination with Arrhenius kinetics and radiation/convection heat transfer. - [Heat exchanger](https://www.dyssoltec.com/thermal/heat-exchanger/): Effectiveness-based two-stream energy transfer (co-/counter-current). - [Solids bunker](https://www.dyssoltec.com/storage/bunker/): Ideally-mixed solids buffering and residence-time dynamics. - [Pneumatic conveying](https://www.dyssoltec.com/transport/pneumatic-conveying/): Conveying-line pressure-drop model (Siegel) from pipe-and-bend layout. ## German pages The full site is available in German under `/de/`, including every unit-operation page (e.g. https://www.dyssoltec.com/de/size-reduction/crusher/). - [Startseite](https://www.dyssoltec.com/de/): German home page. - [Software (DyssolPro)](https://www.dyssoltec.com/de/the-software/): Die dynamische Flowsheet-Simulation für Feststoffprozesse. - [DyssolFree](https://www.dyssoltec.com/de/dyssol-free/): Die dauerhaft kostenlose Version von Dyssol. - [MUSEN](https://www.dyssoltec.com/de/musen/): GPU-beschleunigte DEM-Partikelsimulation. - [Leistungen](https://www.dyssoltec.com/de/services/): Modellentwicklung, Scale-up, Anlagensimulation und Schulungen. ## Key topics - Flowsheet simulation software for solids and particulate processes - Dynamic (time-dependent) process simulation and population balances - DEM (discrete element method) particle simulation with MUSEN - DyssolPro enterprise licensing - DyssolFree, a permanently free feature-capped edition to download - DyssolAcademic, institutional academic licensing for universities - Custom model development (Model Maker) and process-engineering support - Scale-up, debottlenecking, and full-plant simulation - Training for engineers, researchers, and operators ## Optional - [Full content](https://www.dyssoltec.com/llms-full.txt): The complete site content in one markdown file, including every unit-operation page with models, equipment, and FAQs. - [Sitemap](https://www.dyssoltec.com/sitemap.xml): All indexable pages with hreflang alternates.