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Absorption Operating Line One Step Tool

Solute-free-carrier operating line in solute/carrier mole ratios, with explicit inlet anchor and constant carrier flows.

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Description

Return one absorption operating-line point.

A process stream can be described on mass, mole, phase or solvent bases, which are not interchangeable. Lever rules, partition factors and operating-line terms assume compatible composition definitions and an appropriate physical model; a local balance does not determine equilibrium properties or a complete separation design.

Return one absorption operating-line point.

When to use this tool

Use Absorption Operating Line One Step when checking the stated stream composition, phase or separation-model term.

How to use the tool and how it works

  1. Enter liquidFlow, gasFlow, liquidMoleRatio, anchorLiquidRatio, anchorGasRatio. Use the units and conventions below.
  2. Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
  3. Read gasMoleRatio, slope. Use the output convention below.

Return one absorption operating-line point. Require nonnegative liquid flow/ratios and gasFlow > 0; slope = liquidFlow/gasFlow, gasMoleRatio = anchorGasRatio+slope*(liquidMoleRatio-anchorLiquidRatio).1

Input fieldMeaning and unitsAccepted input
liquidFlowPositive solute-free liquid-carrier molar flow.Required. Finite number; minimum 0.
gasFlowPositive solute-free gas-carrier molar flow.Required. Finite number; strictly above 0.
liquidMoleRatioSolute moles per solute-free liquid-carrier mole, not a mole fraction.Required. Finite number; minimum 0.
anchorLiquidRatioAnchor Liquid RatioRequired. Finite number; minimum 0.
anchorGasRatioAnchor Gas RatioRequired. Finite number; minimum 0.
Output fieldInterpretationReturned shape
gasMoleRatioGas Mole RatioRequired. Finite number.
slopeSlopeRequired. Finite number.
json
{
  "input": {
    "liquidFlow": 20,
    "gasFlow": 10,
    "liquidMoleRatio": 0.3,
    "anchorLiquidRatio": 0.1,
    "anchorGasRatio": 0.05
  },
  "output": {
    "gasMoleRatio": 0.44999999999999996,
    "slope": 2
  }
}

Limitations and assumptions

  • Ratios and flows must use compatible solute-free carrier bases; this is not an equilibrium relation or a complete absorber design.
  • Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
  • Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.

Alternative or Complementary methods

Use verified equilibrium and material-property data on consistent bases and solve the complete process model for actual separation or equipment decisions.

References

  1. Calculation and input contract: chemical-engineering/absorption-operating-line-one-step — tool.io

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