Journal Article

FZJ-2022-02487

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Energetics of Technical Integration of 2‐Propanol Fuel Cells: Thermodynamic and Current and Future Technical Feasibility

Braun, K. (Corresponding author) ; Wolf, M.FZJ* ; De Oliveira, A.FZJ* ; Preuster, P.FZJ* ; Wasserscheid, P.FZJ* ; Thiele, S.FZJ* ; Weiß, L. ; Wensing, M.

2022
Wiley-VCH Weinheim [u.a.]

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Please use a persistent id in citations: http://hdl.handle.net/2128/31714  doi:10.1002/ente.202200343

Abstract: 2-Propanol/acetone is a promising liquid organic hydrogen carrier system for fuelcell reactions. Herein, six different concepts for a 2-propanol/acetone fuel cellsystem are evaluated in MATLAB simulation with respect to their thermodynamicintegration and technical feasibility. Four of the concepts use a direct 2-propanolfuel cell while the other two first release molecular hydrogen from 2-propanol andsubsequently use a hydrogen fuel cell. The presented liquid phase 2-propanol fuelcell concept is thermodynamically feasible but cannot be realized technicallyusing commercial Nafion membranes, due to membrane dissolution by the2-propanol/acetone/water fuel mixture. Gaseous 2-propanol fuel cells imply a highheating requirement for the evaporation of the fuel. A direct high-temperature fuelcell using 2-propanol is thermodynamically feasible because there is less water inthe overall system but is not technically feasible because of the esterification ofphosphoric acid. A very interesting option is the conversion of gaseous 2-propanolto pressurized hydrogen in an electrochemical pumping step followed by ahydrogen fuel cell, because here the waste heat of a sufficiently hot hydrogen fuelcell can drive the 2-propanol evaporation.

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Contributing Institute(s):

1. Helmholtz-Institut Erlangen-Nürnberg Erneuerbare Energien (IEK-11)

Research Program(s):

1. 1232 - Power-based Fuels and Chemicals (POF4-123) (POF4-123)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; DEAL Wiley ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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