Decomposition of hydrogen sulfide

Muradov, N.Z., Bazhutin, Yu., Bezuglaya, A., and Rustamov, M., Visible light induced decomposition of hydrogen sulfide in aqueous solutions using cadmium sulfide, ]. Phys. Chem., 54, 2563,1982 (in Russian). 

Gruzdkov, Yu.A., Savinov, E.N., and Parmon, V.N., Photocatalytic decomposition of hydrogen sulfide in the presence of polymer immobilized cadmium sulfide. Promotion by I and VIII group metals, Int.. Hydrogen Energ., 12, 393, 1987. 

Decomposition of Hydrogen Sulfide Porous ir-AljOj/MoSj membranes Porous Y-AI2O3 membranes Porous Vycor glass membranes Abe (1987) Kameyama et al. (1981) Kameyama et al. (1979, 1981a, b)... 

Decomposition of hydrogen sulfide. Mo 2 catalytic pellets packed on the shell side of the reactor. 

Separation experiments on the system Ha-H S. Reaction experiments on the decomposition of hydrogen sulfide over MoSa catalysts packed at tube side. 

Decomposition of hydrogen sulfide. M0S2 catalyst either in layer form (see inner layer in previous column) or in pellet form (see alternative systems 1 and 2, below)... 

Production of hydrogen by direct decomposition of hydrogen sulfide has been studied extensively (Clark et al., 1995 Zaman and Chakma, 1995 Luinstra, 1996). Hydrogen sulfide decomposition is a highly endothermic process and equilibrium... 

Bishara, A., Salman, O.A., Khraishi, N., Marafi, A. 1987. Thermochemical decomposition of hydrogen sulfide by solar energy. Int J Hydrogen Energy 12 679-685. 

It can also be noted that an electrochemical process for the decomposition of hydrogen sulfide into its constituents in an aqueous alkaline solution has been presented [75, 94[. 

In this configuration, the membrane is selective to some reactants or products and the catalyst may be placed on the membrane surface or near the pore entrance such as catalytic electrodes attached to solid electrolytes or a platinum layer on the surface of a vanadium membrane as the catalyst for thermal decomposition of hydrogen sulfide [Edlund and Pledger, 1993]. Solid or liquid catalysts have been attached to membranes or their pores. It has been mentioned previously that this configuration can also be used to control the addition of a reactant through the membrane pores from the other side of the membrane where the second reactant is introduced. 

Note 2 More efficient methods than electrolysis for obtaining hydrogen from water are under investigation. One of these is thermochemical decomposition. Another is photochemical decomposition by solar radiation, either directly or via a solar power generator. Photolytic decomposition of water with platinum catalyst has been achieved. Hydrogen can also be obtained by photolytic decomposition of hydrogen sulfide with cadmium sulfide catalyst. 

II.C.l Production of Hydrogen by Superadiabatic Decomposition of Hydrogen Sulfide... 

Demonstrate the feasibility of the superadiabatic partial oxidation concept as a basis for developing an innovative process for production of economically viable quantities of hydrogen through the thermal, noncatalytic decomposition of hydrogen sulfide (H2S) in H2S-rich waste streams into hydrogen and elemental sulfur, without the input of additional energy (and no additional carbon dioxide [CO2] emissions). 

Slimane, R.B., Lau, F.S., and Abbasian, J. "Production of Hydrogen by Superadiabatic Decomposition of Hydrogen Sulfide," Final Technical Report, DOE Contract No. DE-FC36-99G010450, June 1, 1999 - September 30, 2000. 

Other sources of hydrogen are provided by the conversion of oil or other feedstocks such as municipal solid waste and biomass, decomposition of hydrogen sulfide, or recovery from refinery offgases. 

As discussed earlier, the most effective plasma-chemical decomposition of hydrogen sulfide (10-58) occurs when the process starts with thermal decomposition (10-60) and is followed by sulfur clusterization (10-61) and product separation in a centrifugal field. Consider the kinetics of the process beginning with thermal decomposition (Potapkin et al., 1988). The elementary endothermic reaction initiating the total process (10-58) is the thermal dissociation of hydrogen sulfide ... 

Chivers T, Hyne JB, Lau C (1980) The thermal decomposition of hydrogen sulfide over transition metal sulfides. Int J Hydrogen Energy 5(5) 499-506... 

Huang CP, Linkous CA (2007) UV photochemical option for closed cycle decomposition of hydrogen sulfide. US patent 7220390B1... 

Zhang L, Wang Y, Bai X (2008) Photocatalytic decomposition of hydrogen sulfide to produce hydrogen over CdS/ZnO composite photocatalysts. Huaxue Yu Nianhe 30(6) 5-8,12... 

Nishizawa T, Tanaka Y, Hirota K (1979) Decomposition of hydrogen sulfide and enrichment of hydrogen noduced by use of thermal diffusion columns. Int Chem Eng 19 517... 

Hirota K (1977) Thermal decomposition of hydrogen sulfide in gas mixtures. Japan. Kokai 17(52) 173... 

Fukuda K, Doklya M, Kameyama T, Kotera Y (1978) Catalytic decomposition of hydrogen sulfide. Ind Eng Chem Fundam 17 4... 

Kaloidas VE, Papayarmakos NG (1991) Kinetic studies on the catalytic decomposition of hydrogen sulfide in a tubular reactor. Ind Eng Chem Res 3(X2) 345... 

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