✦ LIBER ✦

Optimum temperature sequences in reactors

✍ Scribed by K.G. Denbigh

Book ID: 103003717
Publisher: Elsevier Science
Year: 1958
Tongue: English
Weight: 766 KB
Volume: 8
Category: Article
ISSN: 0009-2509
DOI: 10.1016/0009-2509(58)80043-3

No coin nor oath required. For personal study only.

✦ Synopsis

passe en revue les travaux anterieurs de plusieurs auteurs sur les profiles de temp&ature les plus favorables pour des reactions exothermiques reversibles et des reactions de degrsdation. Quelques nouveaux calculs servent B illustrer les grandes augmentations de rendement qui peuvent Btre realis& si l'on emploie la succession la plus favorable des temperatures dans des c&s ou il faut Bviter des reactions secondaires. Zusammenfassung-Eine kurse Ubersicht der friiheren Arbeit verschiedener Forscher iiber reversible exothermische Reaktionen und Abwertungsreaktionen wird gegeben. Einige neuen Berechmmgen illustrieren die grosse Zunahme der Ausbeuten, die sich in Fallen von konkurrierenden Nebenreaktionen durch optimale Temperaturstufung erzielen Rsst. Summary-The earlier work of various authors on the optimum temperature profiles for reversible exothermic reactions and degradation reactions is briefly reviewed. Some new calculations are put forward which illustrate the large increases in yield which may be obtained by use of an optimum sequence of temperatures in cases where there are competing side reactions.

📜 SIMILAR VOLUMES

Optimum temperature gradients in tubular

Optimum temperature gradients in tubular reactors—II: Numerical study

✍ Olegh Bilous; Neal R. Amundson 📂 Article 📅 1956 🏛 Elsevier Science 🌐 English ⚖ 966 KB

In this paper extensive numerical calculations for the schematic reaction system A + B + C are described in which the successive reactions may be of either first or second orders or both. From these computations the optimum temperature profiles and maximum yield of B for a given process time may be

Studies in optimization—II: Optimum temp

Studies in optimization—II: Optimum temperature gradients in tubular reactors

✍ R. Aris 📂 Article 📅 1960 🏛 Elsevier Science 🌐 English ⚖ 1002 KB

The method of dynamic programming ia used to solve the general problem of finding the temperature gradient in a tubular reactor, which will maximize some function expressing the profit made by the reaction. As an introductory example the reaction A + B + C when the yield of B is to be maximized is c

Optimum distributed feed reactor with te

Optimum distributed feed reactor with temperature constraints

✍ D.C. Dyson; J.R. Graves 📂 Article 📅 1968 🏛 Elsevier Science 🌐 English ⚖ 851 KB

Chenucal reactors for a smgle exothernuc reverslble reaction wlth mmlmum volume for a @ven duty are conndered m whlch the temperature IS controlled du-ectly by bypassmg cold feed around a mam feed preheater and dlstnbuting It along the length of the reactor, and rn whlch the temperature may not exce

On Denbigh's optimum temperature sequenc

On Denbigh's optimum temperature sequence

✍ R. Aris 📂 Article 📅 1960 🏛 Elsevier Science 🌐 English ⚖ 705 KB

The example of an optimum temperature sequence in stirred tank reactors given by DENBIGH is here discussed from the dynamic programming point of view. The notion of dynamic programming was developed to deal with just such optimum problems, in which a decision, in this case a choice of temperature, h

Simulation of glucose isomerase reactor:

Simulation of glucose isomerase reactor: optimum operating temperature

✍ I. M. Abu-Reesh; N. M. Faqir 📂 Article 📅 1996 🏛 Springer 🌐 English ⚖ 522 KB

Studies in optimization—III: The optimum

Studies in optimization—III: The optimum operating conditions in sequences of stirred tank reactors

✍ R. Aris 📂 Article 📅 1960 🏛 Elsevier Science 🌐 English ⚖ 608 KB

The problem of choosing the operating conditions, such as temperature and holding time, in a sequence of stirred tank reactors so as to maximize the profit from the conversion is here solved by a functional equation. This equation, derived by the method of dynamic programming, is very suitable for t