Composite-alumina-carbon molecular sieve membranes prepared from novolac resin and boehmite. Part II: Effect of the carbonization temperature on the gas permeation properties

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Margot A. Llosa Tanco (Author) FEUP; David A. Pacheco Tanaka (Author) FEUP; Adélio Mendes (Author) FEUP

Journal

Title: International Journal of Hydrogen Energy

Vol. 40 No. 8

Pages: 3485-3496

ISSN: 0360-3199

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 12 Citations

ISI Web of Science

Scopus - 37 Citations

INSPEC

Scientific classification

CORDIS: Technological sciences > Engineering > Chemical engineering

FOS: Engineering and technology > Chemical engineering

Associated Projects

PTDC/EQU-EQU/114944/2009 - Desenvolvimento de um sistema autorregenerativo para a remoção de CO2 de sistemas anestésicos em circuito fechado

Other information

Authenticus ID: P-00A-606

DOI: 10.1016/j.ijhydene.2014.11.025

Abstract (EN): The influence of carbonization temperature on the permeation properties and aging of thin (4 mm) supported carbon molecular sieve membranes (c-CMSM), prepared from in house synthesized novolac phenolic resin loaded with boehmite nanoparticles, were studied. Just after membrane carbonization (fresh membrane), high permeance to N2 and O2 and low O2/ N2 permselectivities were observed; the highest permeations were observed for carbonization end temperatures between 500
C and 700
C. After leaving the c-CMSM 1 day in the air, a large decrease in the permeation and considerable increase in the permselectivity were observed due to the reduction of the pore size by oxygen chemisorption and water physical adsorption; the permeability to H2 and H2/N2 ideal permselectivity for a membrane carbonized at 550
C are close to palladium membranes for low temperature (<100
C). The effect of the permeation characteristics of the membranes carbonized at various temperatures and the removal of water adsorbed in the pores by heat treatment were studied.

Language: English

Type (Professor's evaluation): Scientific

Notes: Publicação abrangida pelo Journal Citation Reports 2015

No. of pages: 12