This paper present a new kind of equipment called the annular reactor, which has been designed to treat a great number of substrates with a particularly good uniformity of thickness of deposits on the batch. Furthermore, a small scale pilot plant of this apparatus, called the sector reactor, has been built. It constitutes a very convenient laboratory piece of equipment, particularly useful to p...

A comprehensive steady-state model of the high-pressure ethylene polymerization in a tubular reactor that is able to calculate the complete molecular weight distribution (MWD) as function of the reactor axial distance is presented. MWD is calculated by means of the probability generating function technique. The model is implemented in gPROMS and included in an optimization framework that is use...

Oscillations, including chaotic ones, can spontaneously appear in chemical reactors or lean premixed combustors. Such behavior of the system is undesirable and should be identified at stage its modeling. This article analyzes reverse-flow tubular reactor with longitudinal dispersion terms oscillations. The purpose using reverse flow to increase conversion degree. For analysis reactor, among oth...

Nitrous oxide (N2O) has been recognized as a relatively strong greenhouse gas. Heterogeneous catalytic processes have been mainly used to decompose N2O at high temperature. Characteristics of N2O decomposition by catalyst-assisted cold plasma were investigated in the present study. Tubular quartz reactor with annular-shaped electrodes was prepared and ruthenium catalysts supported on alumina pe...

A modified tubular photobioreactor was constructed at the J.J. Look Laboratory. The design of this reactor was based on the Tredici-design near-horizontal tubular photobioreactors already present at this facility, but incorporated several features designed to improve mass transfer of carbon dioxide into the liquid phase, facilitate the stripping of photosynthetically produced oxygen, and improv...

On POD reduced models of tubular reactor with periodic regimes Katarzyna Bizon a,∗, Gaetano Continillo a, Lucia Russo b, Joanna Smuła c a Dipartimento di Ingegneria, Università del Sannio, Piazza Roma 21, 82100 Benevento, Italy b Dipartimento di Ingegneria Chimica, Università Federico II, Piazzale Tecchio, 80, 80125 Naples, Italy c Wydział Chemiczny, Politechnika Śląska, ul. Strzody 9, 44-100 G...

This paper deals with the optimal and safe operation of jacketed tubular reactors. Despite the existence of advanced distributed controllers, optimal steady-state reference profiles to be tracked are often unknown. In Logist et al. [2008], a procedure which combines analytical and numerical optimal control techniques, has been proposed for deriving optimal analytical (and thus generic) referenc...

Highly-effective sustainable hydrogen production from ethanol and water was achieved in a tubular dense mixed-conducting oxygen permeable membrane reactor, in which water splitting took place at the tube side of the membrane and oxidative steam reforming of ethanol occurred at the shell side simultaneously.

Herein, we report a rapid route for the synthesis of AlPO4-5. By combining fast heating in a tubular reactor with a seed-assisted method, both of which were found to be crucial, the preparation of AlPO4-5 was completed in one minute, making this route the fastest known for the preparation of the crystalline microporous materials.