Figure 1 is a block flow diagram for co-producing H2 in a future integrated gasification combined cycle (IGCC) plant with carbon sequestration. Key differences from hydrogen (H2) co-production in today's IGCC, in addition to developing new gas turbines capable of firing fuel with very high H2 content, are:
Table 1 lists typical coal-to-H2 plant performance and efficiency parameters for this type of process scheme. There are three different variations, using different coal feed and gasifiers. The performance and efficiency shown include CO2 compression for sequestration, and are for maximum power co-production with the use of gas turbine.
Table 1: Typical IGCC/H2 Co-Production Plant with Carbon Capture Performance & Efficiency 1,2 |
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References/Further Reading
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1. | Capital and Operating Cost of Hydrogen Production from Coal Gasification (Apr 2003) Final Report by Parsons for NETL |
2. | Hydrogen from Coal (Nov 2001) D. Gray & G. Tomlinson, Mitretek Technical Paper |
Hydrogen