Hydrogen Production with In Situ CO2 Capture at High and Medium Temperatures Using Solid Sorbents

Hydrogen is a versatile vector for heat and power, mobility, stationary applications. Steam methane reforming coal gasification have been, until now, the main technologies H2 production, in shorter term may remain due to current costs of green H2. To minimize carbon footprint these technologies, capture CO2 emitted priority. The situ during processes, or even syngas upgrade by water–gas shift (WGS) reaction, especially profitable since it contributes an additional production This includes biomass where can also contribute negative emissions. In sorption-enhanced WGS reaction occur simultaneously, selection suitable sorbents, i.e., with high activity stability, being crucial aspect their success. review identifies describes solid sorbents more potential at medium temperatures, Ca- alkali-based Mg-based respectively. effects temperature, steam pressure on sorbents’ performance processes are discussed, as well influence catalyst–sorbent arrangement, hybrid/mixed sequential configuration.