Status of Biological hydrogen production

Abstract

This paper analyzes yields, reaction rates and reactor designs, and compares effectiveness of different substratemicroorganism combinations. Net energy analysis of processes reveals directions for viability and screening of options. Techniques like metabolic flux analysis can be used to establish targets for increased yields. Factors influencing production and possibility of using genetic engineering to increase production rates are discussed. The paper identifies gaps and possible directions for future development of biological hydrogen production.