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Title:
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Water gas shift membrane reactor for CO2 control in IGCC systems: techno-economic feasibility study
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Author(s):
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Published by:
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Publication date:
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ECN
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1996
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ECN report number:
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Document type:
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ECN-RX--96-046
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Other
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Number of pages:
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Full text:
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19
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Download PDF
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Abstract:
A novel reactor concept, the water gas shift membrane reactor (WGS-MR)for CO2 removal in IGCC systems has been investigated. In order to establish
full insight in the possibilities of the application of such a reactor, a
multidisciplinary feasibility study has been carried out comprising system
integration studies, catalyst research, membrane research, membrane reactor
modelling and bench-scale membrane reactor experiments. The application of
the WGS-MR concept in IGCC systems is an attractive future option for CO2
removal as compared to conventional options. The net efficiency of the IGCC
process with integrated WGS-MR is 42.8% (LHV) with CO2 recovery (80% based
on coal input). This figure has to be compared with 46.7% (LHV) of an IGCC
without CO2 recovery and based on the same components, and with 40.5% (LHV)
of an IGCC with conventional CO2 removal. Moreover, an economic analysis
indicates favourable investment and operational costs. The development of the
process is considered to be technically feasible. However, it became clear
that the technology of inorganic high selective gas separation membrane
manufacturing and high temperature ceramic materials engineering is not yet
mature and that further development in this area remains necessary. 3 figs.,
4 tabs., 12 refs.
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