Biological processes hydrogen production

Gaseous sulfur compounds produced in wetlands are either intermediate metabolites or end products of biological processes. Hydrogen sulfide (H2S) produced by dissimilatory sulfate reduction in anaerobic environment was originally thought to be the primary gaseous sulfur source emitted to the atmosphere (Rodhe and Isaken, 1980). 

D. Das and T. Nejat Veziroglu, Hydrogen Production by Biological processes a Survey of Literature , Int. J. Hydrogen Energy, 2001, 26, 13. 

P. C. Hallenbeck, J. Benemann (2002) Biological hydrogen production fundamentals and limiting processes, hit. J. Hydr. Energy., 27 1185-1193... 

FUNDAMENTALS AND LIMITING PROCESSES OF BIOLOGICAL HYDROGEN PRODUCTION... 

Fundamentals and limiting Processes of Biological Hydrogen Production... 

As well as the previously described methods of hydrogen production, there are other commercial processes whose application is restricted to specialised production conditions. These include the partial oxidation of heavy hydrocarbons, autothermal reforming and the Kvcerner process. In addition, there are numerous production processes that are still at the basic research stage, but show promising potential. These primarily include thermochemical hydrogen production, photochemical and biological processes. The main characteristics of these methods are outlined below. For a more detailed discussion, please refer to the relevant specialist literature. 

Das, D., Veziroglu, T.N. 2008. Advances in biological hydrogen production processes. Int J Hydrogen Energy 33 6046-6057. 

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