The quest for intensified steam cracking process

In this paper the results are presented on the quest for an intensified steam cracking process. The main focus is to improve the efficiency of the steam cracking process. The first part of the investigation is to examine which of the current available processes is close to the ideal steam cracking process. Two possible technologies have...

Improved characterization of small particles in laser diffraction by better optical modeling

Laser Diffraction is widely used for the characterization of particle size distributions of powders. For a lot of materials however, the quantification of small particles (< 2 ?m) in relation to the rest of the distribution can be ambiguous. The deconvolution of the scattering pattern is done either with the Fraunhofer approximation or the Mie...

Permeation measurements on in situ grown ceramic MFI type films

Continuous MFI type films were grown on macroporous ceramic clay-type supports. Permeation experiments were performed using a Wicke-Kallenbach experimental set-up. Applying helium as an inert carrier gas, the permeation behaviour of strongly (n-butane, isobutane), and weakly adsorbing species (neon, argon, methane) was studied at room...

Fast simulation of non-steady state emission problems in energy conversion

Application of the Fast Fourier Transform (FFT) to the inversion of Laplace transforms is a recent development in the solution of the equations describing the behavior of chemical reactors. Chen and Hsu (1987) used the Fast Fourier Transform for the prediction of breakthrough curves of an isothermal fixed bed adsorber. The Fast Fourier Transform...