Process two-component outlet mass balance
Two-component known-composition steady-state balance with one unknown outlet total flow; signed known flows positive in/negative out.
Chemical process measurements ↗Chemical process measurements calculators
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Process recycle purge balance
Fresh feed, recycle-purge fractions, conversion assumptions.
Chemical process measurements ↗Process mixing enthalpy worksheet
Stream masses, supplied enthalpies, heat exchange.
Chemical process measurements ↗Process reaction conversion selectivity
Feed-product molar flows, stoichiometry.
Chemical process measurements ↗Process gas compressibility correction
Pressure-temperature-volume, supplied compressibility.
Chemical process measurements ↗Process gas standard-volume conversion
Operating-standard conditions, compressibility factors.
Chemical process measurements ↗Process vapour pressure interpolation
Supplied Antoine coefficients and validity interval, with an explicit mmHg/°C convention.
Chemical process measurements ↗Process ideal flash calculation
Isothermal ideal constant-K Rachford–Rice flash.
Chemical process measurements ↗Process binary distillation lever rule
Overall-liquid-vapour compositions.
Chemical process measurements ↗Process relative volatility
Supplied vapour-liquid compositions.
Chemical process measurements ↗Process extraction stage mass balance
Single ideal equilibrium extraction with immiscible phases, constant carrier/solvent masses and linear mass-based partition relation; fresh solvent initially solute-free.
Chemical process measurements ↗Process adsorption isotherm fit
Equilibrium concentrations-loadings, selected model.
Chemical process measurements ↗Process batch reaction fit
Time-concentration data, selected reaction order.
Chemical process measurements ↗Process plug-flow residence time
Reactor volume, volumetric flow.
Chemical process measurements ↗Process residence-time distribution
Tracer concentration-time samples.
Chemical process measurements ↗Process CSTR dilution rate
Working volume, inlet flow.
Chemical process measurements ↗Process filtration cake resistance
Filtrate-time data, supplied geometry-properties.
Chemical process measurements ↗Process drying moisture basis
Wet-dry masses, target moisture convention.
Chemical process measurements ↗Process evaporator solids balance
Feed flow-solids, target solids.
Chemical process measurements ↗Process crystallization theoretical recovery
Solution composition, supplied solubility endpoints.
Chemical process measurements ↗Process solvent recovery economics
Waste volumes, recoverable fraction, energy-fees, purchase price.
Chemical process measurements ↗Process pH strong-acid worksheet
Ideal dilute aqueous HCl or HNO3 at25°C, at most0.01mol/L.
Chemical process measurements ↗Process pH buffer worksheet
Supplied pKa and appreciable acid/conjugate-base amounts, common volume and ratio0.1–10.
Chemical process measurements ↗Process conductivity calibration
Reference concentrations-conductivities, sample readings.
Chemical process measurements ↗Process reagent certificate reconciliation
Declared assay, measured checks, supplied tolerances.
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