Despite the predicted major role of crude oil, mainly in the transport sector, and the growing share of natural gas in power generation, as outlined in the forecast of energy use structure by 2030, coal remains the most important fuel for power generation. Being the most abundant and competitive, coal recoverable reserves could satisfy the world's energy needs in the perspective of about 180 years at the current consumption levels (Energy Information Administration, 2006). At the same time the unstable oil prices as well as stronger environmental regulations regarding greenhouse emissions make the greatest economic powers search a new, price competitive, and environment-friendly energy carrier. According to the specialists in the short- and medium-term hydrogen is likely to become this desired energy carrier. The world research activities in this scope focus on the development of integrated hydrogen and power production technologies, particularly technologies of hydrogen production from coal gasification product - synthesis gas, combined with carbon dioxide capture (Bisio and Boots, 1995; Göttlicher and Pruschek, 1997; Rosen and Scott, 1998; Gray and Tomlinson, 2002; Lin et al., 2002a,b; Chi-esa et al., 2005; Collot, 2005; Gambini and Vellini, 2005; Kreutz et al., 2005; Lin et al., 2005a,b; Tzimas and Peteves, 2005; Yamashita and Barreto, 2005; Stiegel and Ramezan, 2006).
This chapter presents the results of laboratory-scale tests of steam gasification of Polish hard coal combined with CO2 capture in a single step. The main idea of the process is based on applying of Fe2O3 as an oxygen transfer compound, enhancing the conversion rate of CO to CO2 in the water-gas shift reaction, and the CaO for absorption of produced CO2. Tests of steam gasification of coal were conducted in a laboratory-scale fixed bed reactor in the temperature range of 9231173 K in three series: steam gasification of coal without additives, with addition of Fe2O3 and CaO layered on a coal sample, and mixed with a coal sample, respectively. Coal samples supplier was selected based on the coal mine resources,
Based on Smolinski A (2009) Laboratory scale tests of coal-based hydrogen production with CO2 capture in the aspect of clean coal technologies. International Journal of Global Warming Vol. 1, Nos. 1/2/3: 227-237.
I. Dincer et al. (eds.), Global Warming, Green Energy and Technology,
DOI 10.1007/978-1-4419-1017-2_17, © Springer Science+Business Media, LLC 2010
quality, price, and reactivity of coal, suitable for a future Integrated Gasification Combined Cycle system planned to be built in Poland.
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