Steady absorption column design

This section concerns the modelling of countercurrent flow, differential mass transfer applications, for both steady-state and non-steady-state design or simulation purposes. For simplicity, the treatment is restricted to the case of a single solute, transferring between two inert phases, as in the standard treatments of liquid-liquid extraction or gas absorption column design. 

AMMONAB - Steady-State Absorption Column Design... 

Steady-State Absorption Column Design 471 Oxidation of O-Xylene to Phthalic Anhydride 324 Continuous Stirred Tank Reactor Model of Activated 577... 

In the section on heat effects, we emphasized how the steady-state energy balance can be used to design and analyze flash separators, absorption columns, and chemical reactors. In each application we developed a general form for the energy balance, and then we showed how it simplifies when it is applied to adiabatic and isothermal operations. We also noted that engineering calculations for process design involve the same quantities and the same equations as those for process analysis. Process design differs from process analysis only in the identities of the knowns and unknowns. 

This chapter concerns the most important reactive separation processes reactive absorption, reactive distillation, and reactive extraction. These operations combining the separation and reaction steps inside a single column are advantageous as compared to traditional unit operations. The three considered processes are similar and at the same time very different. Therefore, their common modeling basis is discussed and their peculiarities are illustrated with a number of industrially relevant case studies. The theoretical description is supported by the results of laboratory-, pilot-, and industrial-scale experimental investigations. Both steady-state and dynamic issues are treated in addition, the design of column internals is addressed. 

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