Influence of Pyrolysis Parameters on the Performance of CMSM

Abstract

Carbon hollow fiber membranes have been prepared by pyrolysis of a P84/S-PEEK blend. Proximate analysis of the precursor was performed using thermogravimetry (TGA), and a carbon yield of approximately 40% can be obtained. This study aimed at understanding the influence of pyrolysis parameters-end temperature, quenching effect, and soaking time-on the membrane properties. Permeation experiments were performed with N 2 , He, and CO 2 . Scanning electron microscopy (SEM) has been done for all carbon hollow fibers. The highest permeances were obtained for the membrane submitted to an end temperature of 750• C and the highest ideal selectivities for an end temperature of 700 • C. In both cases, the membranes were quenched to room temperature.

Carbon molecular sieve membranes from cellophane paper

“…In order to determine the yield of fixed carbon, proximate analysis of cellophane was performed. The heating protocol employed was modified by the authors [17], but follows essentially the work by Ottaway [18] and can be summarized as follows:…”

The Effects of a Sodium Carbonate Catalyst on Calorific Value, Flash Point, Cetane Index, and pH of Tire Pyrolysis Oil

“…Te product characteristics of various pyrolysis processes have already been evaluated under varying operating conditions. For instance, time of residence, temperature, and pressure [5,[10][11][12]. During the pyrolysis process, the organic and volatile material in tires decomposes into other low molecular weight ingredients, liquids, and gases.…”