Absorption Process Flowsheets & Simulations
Explore 5 validated, solved Absorption simulation flowsheets in MaximaLabs — real components: methane, ethane, propane, n_butane, n_pentane, n_dodecane. Open any one directly in your browser.
Solved via: PENG-ROBINSON.
Perry Ch.13 Example 2: lean-oil absorber
Simple absorber recovering butane and pentane from a process gas into a lean-oil (n-dodecane) absorbent, from Chapter 13 of Perry's Chemical Engineers' Handbook.
5 unit ops • PENG-ROBINSON
17 0
View & openPerry Ch.13 Example 5: two-step absorber with intercooling
Two absorption stages in series with intercooling between them (removing the heat of absorption, which otherwise raises K-values and hurts recovery) to maximize LPG recovery, from Chapter 13 of Perry's Chemical Engineers' Handbook.
9 unit ops • PENG-ROBINSON
17 0
View & openAcetone from isopropanol dehydrogenation
Endothermic gas-phase dehydrogenation of isopropanol (IPA) to acetone, after Luyben (Ind. Eng. Chem. Res. 2011, 50, 1206). The H2-rich reactor off-gas is scrubbed with water to recover the acetone before venting, then a column splits acetone from the water/unreacted-IPA absorbent.
8 unit ops • PENG-ROBINSON
16 0
View & openCO2 removal from syngas (Rectisol-style physical solvent)
A CO2-laden syngas stream from gasification/reforming (H2/CO with 25% CO2, the actual Rectisol duty — scrubbing raw syngas ahead of methanol/ammonia synthesis, not treating pipeline natural gas) is sweetened by a cold-methanol physical-solvent absorber (chosen because chemical amine reactions aren't modeled here) down toward synthesis-loop spec, then the rich solvent is regenerated by a pressure letdown into a second flash that flashes the bulk of the absorbed CO2 back off — the same letdown-valve-plus-flash regeneration pattern used for HDA's and methanol synthesis's own dissolved-gas trains. No solvent recycle loop (an honest simplification: the regenerated solvent is reported as a product stream rather than closed back onto the absorber feed). From the ChemSep casebook (CO2 removal from natural gas), adapted to Rectisol's real syngas duty.
8 unit ops • PENG-ROBINSON
17 0
View & openTEG natural gas dehydration
Wet natural gas is contacted counter-currently with lean triethylene glycol (TEG) in an absorber, pulling water vapor into the glycol to meet a pipeline water spec; the rich glycol is then let down in pressure and regenerated in two flashes — the first flashes off the bulk of the co-absorbed methane, the second (hot) flash boils the absorbed water off the now nearly gas-free glycol, leaving hot lean glycol bottoms (its recycle back to the absorber is reported as a product, the same open-loop simplification used elsewhere in this library). Water is the most common undesirable natural-gas impurity — it forms hydrates that plug valves and fittings once the gas is compressed or cooled.
10 unit ops • PENG-ROBINSON
17 2
View & open