Abstract
This chapter evaluates the overall performance of advanced power plants based on fossil fuel decarbonization. Two different fossil fuels (natural gas and coal) and, thus, two different processes are compared, which provide hydrogen (partial oxidation of natural gas and coal gasification). The two methods presented in the chapter to produce H2 are the coal gasification and the partial oxidation of natural gas. These hydrogen production systems require material and energy integrations with power section and the best interconnections must be examined to obtain good overall performance. The power plants based on natural gas attain better performance levels, but this result is not surprising. The use of natural gas in the most advanced combined cycle power plants yields many advantages: high efficiency levels, small electricity costs, and a very low environmental impact. But the energy sources must be diversified and, thus, it is necessary to evaluate the same parameters (efficiency, electricity costs, emissions) taking into account quality-low fuels such as coal. The coal decarbonization can become a very strategic prospect because it can greatly reduce the high environmental impact of coal by transforming it into a syngas that is rich in hydrogen.
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