Chemical Looping Combustion and Gasification

Abstract

With the emerging challenge of climate change and the continued escalation of energy demands, innovative and flexible fuel conversion technologies are necessary and gaining recognition. Chemical looping technologies have the potential to not only reduce energy costs, but also to mitigate carbon emissions. Historically, the general concept of this reduction–oxidation mechanism has been suggested, but the process was never commercialized. Recent interests in carbon capture techniques have revitalized the adaptive chemical looping system. Chemical looping technologies can utilize both gaseous and solid fuels such as natural gas and coal, respectively, for power, hydrogen, or chemical generation. However, the success of technological adoption requires a thorough understanding of the types of chemical looping techniques, the design considerations, and the reactor modes of configurations. Current large‐scale testing units are examined with the hope for near‐term advancement and future commercial application.

Mechanistic Study on Ligand‐Controlled Cobalt‐Catalyzed Regioselectivity‐Switchable Hydroarylation of Styrenes

“…In this article, the syngas chemical looping (SCL) gasification process10, 24–28 is described. The process converts gaseous fuels such as coal derived syngas into hydrogen and electricity through the aid of an iron based oxygen carrier particle, avoiding the water gas shift and CO 2 separation steps.…”

Unlocking the potential of catalysts in thermochemical energy conversion processes

“…However, using air as the oxidant can result in a lower quality of syngas due to the presence of nitrogen in air. 162 The use of an oxygen carrier in biomass gasification shows promise as an alternative to traditional gasification processes. This method can enhance the quality of the produced syngas and decrease nitrogen oxide emissions, making it a more environmentally friendly option.…”