Analysis of Controlled Cycling Mass Transfer Operations

Robinson, Russell G.; Engel, A. J.

doi:10.1021/ie51402a007

Cited by 32 publications

(15 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first Lewis case describes a tray immediately above the reboiler (or the bottom tray in a absorption or stripper column), where the vapour has a uniform composition. The third Lewis case describes a tray in a conventional distillation column and it was later shown that a tray operated with periodic cycling is analogous to Lewis case II 9 .…”

Section: Accepted Articlementioning

confidence: 99%

A mass and energy balance stage model for cyclic distillation

et al. 2020

View full text Add to dashboard Cite

 Users may download and print one copy of any publication from the public portal for the purpose of private study or research.  You may not further distribute the material or use it for any profit-making activity or commercial gain  You may freely distribute the URL identifying the publication in the public portal If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim.

show abstract

Section: Accepted Articlementioning

confidence: 99%

A mass and energy balance stage model for cyclic distillation

et al. 2020

View full text Add to dashboard Cite

show abstract

“…This model provides a basic understanding of the liquid transfer processes, occurring during the drain period of a cycle, and will lead to improvements in studying the class transfer processes occurring in the column. The s ngle-stage (1s) dropping model has been used in mass transfer studies by Horn ( 1967), May and Horn (1968), Robinson and Engel (1967), Chien et al (1966), Furzer (1973, and Furzer and Duffy (1974). A (1s) model with perfect liquid mixing on each plate during the drain period has been used in mass transfer studies by Horn and May ( 1968), McWhirter and Lloyd (1963), and Gerster and Scull ( 1970).…”

Section: Dlscusslonmentioning

confidence: 99%

Periodic cycling of plate columns: Discrete residence time distribution

Furzer

Duffy

1976

AIChE Journal

View full text Add to dashboard Cite

The discrete residence time distribution applies to systems under periodic control. A system consisting of a plate column has been modeled to allow the generation of the discrete residence time distribution. The parameters in the model have been evaluated by measurements of entrainment, holdup, and the step response of the column under direct computer control. A least‐squares minimization technique provided confirmation of the modeling procedures.

show abstract

“…(By controlled cycling is meant a square-wave, on-off type of operation, as contrasted with sinusoidal or pulsing types of behavior.) A number of theoretical and experimental studies on controlled cycled extraction and distillation columns, gas absovbers, and particle separators (McWhirter, 1962;Robertson and Engel, 1967;Robinson and Engel, 1967) has suggested that unwanted disturbance in the system, beyond those deliberately induced, can be easily controIled by the cycled system while similar perturbations often cause extreme control difficulties in the corresponding steady state operation. Although a considerable amount of effort has been expended on investigating controlled cycled stirred tank reactors (Codell and Engel, 1971;Fang, 1966;Silverman, 1969), experimentation in this area has been somewhat hindered by the scarcity of well defined chemical reactions for which the kinetics are sufficiently understood to make cycled reactor analysis feasible.…”

Section: Steady State Multiplicity "mentioning

confidence: 99%

Steady state multiplicity and stability in an adiabatic controlled cycled stirred tank reactor

Ausikaitis

Engel

1974

AIChE Journal

Self Cite

View full text Add to dashboard Cite

Steady state multiplicity in exothermic adiabatic reaction systems oreviouslv been demonstrated bv a number of authors. SDecificallv. has the hork of Root and Schmitz provid the existence of multipll steady'states in a loop reactor, but difficulty was encountered in controlling such a reaction system at the intermediate steady states.Since a close analogy can be demonstrated between loop reactors and controlled cycled reactors (CCTR), it appeared reasonable to attempt to achieve steady state multiplicity in a CCTR. When the chemical reaction of Root and Schmitz was carried out in a CCTR, it proved relatively easy to obtain experimental values of intermediate steady states and to control the reactor at these conditions by means of a simple on-off temperature controller.This work suggests that chemical systems displaying steady state multiplicity can be experimentally investigated in a CCTR and that cyclic operation may be the best way for controlling such reactions systems.

show abstract

Analysis of Controlled Cycling Mass Transfer Operations

Cited by 32 publications

References 0 publications

A mass and energy balance stage model for cyclic distillation

A mass and energy balance stage model for cyclic distillation

Periodic cycling of plate columns: Discrete residence time distribution

Steady state multiplicity and stability in an adiabatic controlled cycled stirred tank reactor

Contact Info

Product

Resources

About