RHEONRHEON

Capabilities

The details behind the simulator surface.

A deeper view of what RHEON can model today, how the solver pipeline is structured, and where the interface helps users reason about their process.

Natural-gas dew-pointing workspace

Canvas, validation, solve state, stream results, and side-panel controls in one editor surface.

PengRobinson · 4 comps

Validation

No errors

Solver

Converged

Save

Autosaved

StreamT KP barVFFlow
s1305.060.01.000100.00
s3255.020.00.81282.44
s5252.820.00.00017.56

Canvas-first flowsheet authoring

The core workspace is an interactive process canvas with a unit palette, typed material and energy streams, autosave, command palette actions, reference flowsheets, and block-level drill-down.

Drag feeds, products, mixers, splitters, heaters, coolers, compressors, valves, reactors, flashes, heat exchangers, and distillation columns onto the canvas.
Connect ports with typed streams so the visual graph remains connected to a solvable process topology.
Inspect block specifications in the side panel while the canvas stays visible.
Export the canvas as PNG for reports and reviews.

Thermodynamics, components, and plots

The package tab and plot panels expose the chemistry behind the model before users commit to a flowsheet solve.

Component sets use CAS, formula, and molecular-weight data, with searchable component management.
Property packages include Ideal/Raoult, Peng-Robinson, SRK, and NRTL.
Binary T-x-y and phase-envelope views appear inside the editor for quick phase-behavior checks.
Flash support covers PT, PH, PS, and vapor-fraction calculations used by streams and unit models.

Solvers, diagnostics, and results

The run loop mirrors practical process engineering: validate, solve, inspect convergence, then keep the result attached to the model.

Validation catches missing specs, disconnected streams, and invalid topology before solving.
Sequential modular and equation-oriented modes are available from the toolbar.
Recycle-aware solving stores diagnostics, residual history, wall time, and final convergence state.
Stream results are shown in a sortable table with temperatures, pressures, vapor fractions, component fractions, and CSV/Excel export.

Studies, economics, and decision support

Solved flowsheets become analysis surfaces, not just diagrams. Users can move from unit results into sensitivity, optimization, pinch, and study-grade economics.

Case-study modes include sensitivity sweeps, design-spec adjustment, optimization, and pinch analysis.
Flow diagrams include Sankey views, exchanger T-Q curves, and column profiles where results expose them.
Economics estimates CAPEX, OPEX, annualized cost, utilities, and equipment installed costs.
Snapshots preserve useful model states so alternatives can be restored and compared.

Agentic flowsheet creation

The agent panel can turn a process prompt into a proposed topology, components, property package, and specs for a user to review before applying.

Seed prompts include dew-pointing, BTX separation, and ammonia synthesis loops.
The agent streams a response, prepares a draft, and summarizes proposed blocks, streams, and components.
Drafts remain reviewable before they are applied to the active canvas.
Chat history is stored per flowsheet so model-building reasoning is not lost.

Collaboration, history, and publishing

The editor includes the review mechanics needed for process studies to be reused, shared, and explained.

Comments can be anchored to the current flowsheet context.
History panels create snapshots and restore earlier versions.
Public read-only links expose a pannable shared flowsheet without edit controls.
Published flowsheets appear in the public flowsheet library.

Thermo and column profile view

The plot tab brings phase behavior, Sankey flow views, and column profiles into the same workspace.

Ideal · 2 comps

Validation

No errors

Solver

Converged

Save

Autosaved

Agent-assisted synthesis loop draft

Prompt-to-flowsheet creation remains reviewable before changing the model.

PengRobinson · 3 comps

Validation

No errors

Solver

Converged

Save

Autosaved