Catalytic Systems for the H2S Wet Oxidation at room Temperature
Tóm tắt
The catalytic wet oxidation process is the most attractive process for small-scale hydrogen sulfide (H2S) removal from natural gas. The catalytic wet oxidation process is anticipated to be cost effective and simple so that it can be used for treating sour gases containing small amounts of H2S and can be easily operated even in isolated sites. The development of effective catalyst is the key technology in the wet catalytic oxidation of H2S. The scale of operation for the process has to be flexible so its use will not be limited by the flow rates of the gas to be treated. The heterogeneous catalytic wet oxidation of H2S has been attempted on activated carbons, but the H2S removal capacity still shows the low removal efficiency. The catalytic wet oxidation of H2S was studied over Fe/MgO for an effective removal of H2S. In order to develop a sulfur removal technology, one has to know what surface species of catalyst are the most active. This article discusses the following systematic studies: (i) the catalytic preparation to disperse Fe metal well on MgO support for enhancing H2S removal capacity, (ii) the effect of the catalytic morphology on the activity of Fe/MgO for the H2S wet oxidation, (iii) the influence of precursor and support on the activity of Fe/MgO for catalytic wet oxidation of H2S to sulfur.
Tài liệu tham khảo
DeBerry DW (1993) Topical report to Gas Research Institute, Report No. GRI-93/0019, April 1993
Cantrall R (1994) GRI liquid redox sulfur conference, May 15–17, 1994, Austin, Texas
Rehmat A, Goyal A, Yoshizawa J (1995) GRI liquid redox sulfur conference, September 24–27, 1995, Austin, Texas
Kohl AL, FC Riesenfeld (1979) Gas purification, 3rd edn. Gulf Publishing Co., Houston, pp 402–406
Mikhalovsky SV, Zaitsev YP (1997) Carbon 35:1367
Adib F, Bagreev A, Bandosz TJ (2000) Envin Sci Technol 34:686
Capone M (1997) Kirk-Othmer encyclopedia of chemical technology. John Wiley & Sons, Inc
Sander UHF, Fisher U, Rothe U, Kola R (1984) In: More AI (ed) Sulfur dioxide and sulfuric acid. The British Sulfur Corporation Ltd., p 153
Jung KD, Joo OS, Cho SH, Han SH (2001) Appl Catal 240:213
Jung KD, Joo OS, Kim CS (2002) Catal Letters 84:53
Spretz R, Marchetti SG, Ulla MA, Lombardo EA (2000) J Catal 194:167
Shen J, Guang B, Tu M, Chen Y (1996) Catal Today 30:77
Graat PCJ, Somers MA (1996) J Appl Surf Sci 100:36
Bukhtiyarova GA, Bukhtiyarov VI, Sakaeva NS, Kaichev VV, Zolotovskii BP (2000) J Mol Catal 158:251
Hardison LC (1993) AIChE spring national meeting, 2 April, New Orleans, p 124
Newman DW, Lynn S (1984) Am Inst Chem Eng J 30:62
Shin MY, Nam CM, Park DW, Chung JS (2001) Appl Catal 211:213
Lee EK, Jung KD, Joo OS, Shul YG (2005) Bull Kor Chem Soc 26:281
Shen J, Guang B, Tu M, Chen Y (1996) Catal Today 30:77
Cornell RM, Schwertmann U (2003) The iron oxides. Wiley-VCH, p 526
Graat PCJ, Somers MAJ (1996) Appl Surf Sci 100:36
Bukhtiyarova GA, Bukhtiyarov VI, Sakaeva NS, Kaichev VV, Zolotovskii BP (2000) J Mol Catal 158:251
Oliveira AC, Fierro JLG, Valentini A, Nobre PSS, Rangel MDC (2003) Catal Today 85:49
Shen W-J, Ichihashi Y, Ando H, Okumura M, Haruta M, Matsumura Y (2001) Appl Catal 217:165
Terörde RJAM, van den Brink PJ, Visser LM, van Dillen AJ, Geus JW (1993) Catal Today 17:217
Okamoto Y, Kubota T, Ohto Y, Nasu S (2000) J Catal 192:412
Cubeiro ML, Morales H, Goldwasser MR, Pérez-Zurita MJ, González-Jiménez F, de N CU (1999) Appl Catal 189:87
Bond G, Molloy KC, Stone FS (1997) Solid State Ionics 101:697
Huang YL, Xue DS, Zhou PH, Ma Y, Li FS (2003) Mater Sci Eng 359:332
Cubeiro ML, Morales H, Goldwasser MR, Pérez-Zurita MJ, González-Jiménez F, de N CU (1999) Appl Catal 189:87
Julián Cd, Alcázar GAP, Cebollada F, Montero MI, González JM, Marco JF (1999) J Magnetism Magn Mater 203:175