Gas Mass Transfer and System Pressure in Biohydrogen Production
摘要
The process of hydrogen production interacts highly with gas–liquid mass transfer and bubble behaviors as well as the gaseous pressures. In this chapter, basic mathematical models for analysis of liquid–gas mass transfer kinetics, the relationship between gas solubility and mass transfer, and liquid product composition will be discussed. Then, basic information of system pressure and effects of headspace composition and gas partial pressures on biohydrogen production will be summarized. The routes to enhance hydrogen production metabolic pathway through regulating the gas composition and partial pressure in the system will also be proposed. The information of gas mass transfer and system pressure will certainly pose insight for possible enhancement of biohydrogen production.