✦ LIBER ✦

Comparison of experimental and predicted breakthrough curves for adiabatic adsorption in fixed bed

✍ Scribed by Lis Marcussen

Publisher: Elsevier Science
Year: 1982
Tongue: English
Weight: 592 KB
Volume: 37
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(82)80165-6

No coin nor oath required. For personal study only.

✦ Synopsis

Abstracr-Mass and heat transfer in adiabatic fixed bed adsorbers is described by a model which considers resistance to mass and heat transfer simultaneously within the porous adsorbent particles and in the fluid flowing past the pellets. The adsorption equilibrium is described by a temperature dependent Freundlich isotherm.

The mathematical model which is given in dimensionless form is solved numerically for different values of the dimensionless parameters.

An example of predicted concentration and temperature breakthrough curves for an adiabatic integral bed is given. This prediction is performed solely on the basis of data from an isothermal differential bed. The predicted breakthrough time is within 8% of the experimental value when the dimensionless parameters are assumed constant and within 2% when their concentration and temperature dependence is taken into account.

📜 SIMILAR VOLUMES

Experimental breakthrough curves determi

Experimental breakthrough curves determined under carefully controlled conditions for the adsorption of water vapour on alumina in adiabatic fixed beds

✍ Lis Marcussen; Christian Vinding 📂 Article 📅 1982 🏛 Elsevier Science 🌐 English ⚖ 364 KB

The adsorption on activated alumina of water vapour from an air stream is studied experimentally in an adiabatic fixed bed. The experimental set-up which provides accurate results is described. The influence of particle size, gas inlet concentration and temperature, linear gas velocity and bed lengt

Prediction of breakthrough curves in pac

Prediction of breakthrough curves in packed beds: II. Experimental evidence for axial dispersion and intraparticle effects

✍ C. P. Jeffreson 📂 Article 📅 1972 🏛 American Institute of Chemical Engineers 🌐 English ⚖ 528 KB

Estimation of component loadings in fixe

Estimation of component loadings in fixed-bed adsorption from breakthrough curves of binary gas mixtures in nontrace systems

✍ G. Kluge; Th. Franke; R. Schöllner; G. Nagel 📂 Article 📅 1991 🏛 Elsevier Science 🌐 English ⚖ 330 KB

5 An experimental and theoretical invest

5 An experimental and theoretical investigation of ethylene oxidation on supported platinum in an adiabatic fixed-bed reactor

✍ Stephen C. Paspek; Arvind Varma 📂 Article 📅 1980 🏛 Elsevier Science 🌐 English ⚖ 616 KB

Statistical fluctuations of conversion a

Statistical fluctuations of conversion and temperature in an adiabatic fixed-bed reactor for CO oxidation

✍ E. Wicke; H.U. Onken 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 580 KB

In the exit section of an adiabatic fixed-bed reactor for catalytic CO oxidation. large irregular fluctuations of conversion and temperatures have been observed. These irregularities are initiated by oscillatory instabilities in the entranCe region of the catalyst bed which are disturbed by small va

Statistical fluctuations of conversion a

Statistical fluctuations of conversion and temperature in an adiabatic fixed-bed reactor for co-oxidation

✍ H.U. Onken; E. Wicke 📂 Article 📅 1986 🏛 Elsevier Science 🌐 English ⚖ 50 KB

Nonperiodic temporal varlations of exit concentrations and temperature were observed for the co-oxidation with air in an adlabatic fixedbed reactor fllled with \(\mathrm{Pt} / \gamma-\mathrm{Al}_{2} \mathrm{O}_{3}\) catalyst pellets. These irregularities occur only in the transition region between b