Cargando…

Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant

The integration of mixed ionic electronic conducting (MIEC) membranes for air separation in a small-to-medium scale unit for H(2) production (in the range of 650–850 Nm(3)/h) via auto-thermal reforming of methane has been investigated in the present study. Membranes based on mixed ionic electronic c...

Descripción completa

Detalles Bibliográficos
Autores principales: Spallina, Vincenzo, Melchiori, Tommaso, Gallucci, Fausto, van Sint Annaland, Martin
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6272475/
https://www.ncbi.nlm.nih.gov/pubmed/25793545
http://dx.doi.org/10.3390/molecules20034998
_version_ 1783377165283229696
author Spallina, Vincenzo
Melchiori, Tommaso
Gallucci, Fausto
van Sint Annaland, Martin
author_facet Spallina, Vincenzo
Melchiori, Tommaso
Gallucci, Fausto
van Sint Annaland, Martin
author_sort Spallina, Vincenzo
collection PubMed
description The integration of mixed ionic electronic conducting (MIEC) membranes for air separation in a small-to-medium scale unit for H(2) production (in the range of 650–850 Nm(3)/h) via auto-thermal reforming of methane has been investigated in the present study. Membranes based on mixed ionic electronic conducting oxides such as Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-δ) (BSCF) give sufficiently high oxygen fluxes at temperatures above 800 °C with high purity (higher than 99%). Experimental results of membrane permeation tests are presented and used for the reactor design with a detailed reactor model. The assessment of the H(2) plant has been carried out for different operating conditions and reactor geometry and an energy analysis has been carried out with the flowsheeting software Aspen Plus, including also the turbomachines required for a proper thermal integration. A micro-gas turbine is integrated in the system in order to supply part of the electricity required in the system. The analysis of the system shows that the reforming efficiency is in the range of 62%–70% in the case where the temperature at the auto-thermal reforming membrane reactor (ATR-MR) is equal to 900 °C. When the electric consumption and the thermal export are included the efficiency of the plant approaches 74%–78%. The design of the reactor has been carried out using a reactor model linked to the Aspen flowsheet and the results show that with a larger reactor volume the performance of the system can be improved, especially because of the reduced electric consumption. From this analysis it has been found that for a production of about 790 Nm(3)/h pure H(2), a reactor with a diameter of 1 m and length of 1.8 m with about 1500 membranes of 2 cm diameter is required.
format Online
Article
Text
id pubmed-6272475
institution National Center for Biotechnology Information
language English
publishDate 2015
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-62724752018-12-31 Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant Spallina, Vincenzo Melchiori, Tommaso Gallucci, Fausto van Sint Annaland, Martin Molecules Article The integration of mixed ionic electronic conducting (MIEC) membranes for air separation in a small-to-medium scale unit for H(2) production (in the range of 650–850 Nm(3)/h) via auto-thermal reforming of methane has been investigated in the present study. Membranes based on mixed ionic electronic conducting oxides such as Ba(0.5)Sr(0.5)Co(0.8)Fe(0.2)O(3-δ) (BSCF) give sufficiently high oxygen fluxes at temperatures above 800 °C with high purity (higher than 99%). Experimental results of membrane permeation tests are presented and used for the reactor design with a detailed reactor model. The assessment of the H(2) plant has been carried out for different operating conditions and reactor geometry and an energy analysis has been carried out with the flowsheeting software Aspen Plus, including also the turbomachines required for a proper thermal integration. A micro-gas turbine is integrated in the system in order to supply part of the electricity required in the system. The analysis of the system shows that the reforming efficiency is in the range of 62%–70% in the case where the temperature at the auto-thermal reforming membrane reactor (ATR-MR) is equal to 900 °C. When the electric consumption and the thermal export are included the efficiency of the plant approaches 74%–78%. The design of the reactor has been carried out using a reactor model linked to the Aspen flowsheet and the results show that with a larger reactor volume the performance of the system can be improved, especially because of the reduced electric consumption. From this analysis it has been found that for a production of about 790 Nm(3)/h pure H(2), a reactor with a diameter of 1 m and length of 1.8 m with about 1500 membranes of 2 cm diameter is required. MDPI 2015-03-18 /pmc/articles/PMC6272475/ /pubmed/25793545 http://dx.doi.org/10.3390/molecules20034998 Text en © 2015 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Spallina, Vincenzo
Melchiori, Tommaso
Gallucci, Fausto
van Sint Annaland, Martin
Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title_full Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title_fullStr Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title_full_unstemmed Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title_short Auto-Thermal Reforming Using Mixed Ion-Electronic Conducting Ceramic Membranes for a Small-Scale H(2) Production Plant
title_sort auto-thermal reforming using mixed ion-electronic conducting ceramic membranes for a small-scale h(2) production plant
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6272475/
https://www.ncbi.nlm.nih.gov/pubmed/25793545
http://dx.doi.org/10.3390/molecules20034998
work_keys_str_mv AT spallinavincenzo autothermalreformingusingmixedionelectronicconductingceramicmembranesforasmallscaleh2productionplant
AT melchioritommaso autothermalreformingusingmixedionelectronicconductingceramicmembranesforasmallscaleh2productionplant
AT galluccifausto autothermalreformingusingmixedionelectronicconductingceramicmembranesforasmallscaleh2productionplant
AT vansintannalandmartin autothermalreformingusingmixedionelectronicconductingceramicmembranesforasmallscaleh2productionplant