1. Barin, I.; Thermochemical Data of Pure Substances, 2nd Ed., VCH, Weinheim, Germany (1993)
2. Geus, J. W. and W. J. J. Van Der Wal; “Desulfurization of Synthesis Gas by Iron Oxide Absorbents,” 8th Int. Congr. Catal. Proc. Volume 2, p.II245-II 256, Weinheim, Germany (1985)
3. Hasatani, M. and M. Yuzawa, S. Sugiyama and C. Y. Wen; “Reactivity of Fe203 with 112S Contained in Low-Calorie Syngas,” Kagaku Kogaku Ronbunshu, 6, 915–921 (1980)
4. Kobayashi, M., II. Shirai, T. Nakayama and T. Tanaka; “Long Term Reliability of Desulfurization Sorbent for Hot Coal Gas-Influence of Carbon Deposition (Part 1),” Denryoku Chuou Kenkyujo Houkoku, W 88007, p. 25 (1988)
5. Development of Hot Gas Cleanup Technology for IGCC. Technical Development Trends of 3 Types Hot Gas Cleanup Process.