Perovskite membrane reactors

Perovskite membrane reactors

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As one of the most promising strategies in chemical process intensification, membrane reactor (MR) technology has attracted considerable worldwide researches in the last three decades, and this subject is still currently undergoing rapid development and innovation. Nevertheless, inorganic MRs such as perovskite MRs have not achieved any large-scale commercial applications, which implies that there are still a lot challenges to their practical applications. In contrast, several novel perovskite membranes and MRs have been developed in recent years. Therefore, this chapter addresses research and development of perovskite MR applications, in which can permeate oxygen and hydrogen at high temperatures. Indeed, in this chapter, is introduced the structure, transport mechanisms, and performance of various perovskite membranes, followed by evaluation of employing perovskite membranes for both oxidative and non-oxidative reactions. In this viewpoint, the perovskite membrane role of either removing a reactant to shift the equilibrium or adding a reactant to control the reaction mechanism and associated side reactions is significant. Furthermore, the advantages and disadvantages of perovskite MRs are mentioned as a developed technology compared to the traditional reactors and the main challenges that must be overcome for industrial startup of MR technology.

Chapter Contents:

  • Abstract
  • 10.1 Introduction
  • 10.2 Structure and material of perovskite membranes
  • 10.3 Transport mechanism of perovskite membranes
  • 10.3.1 Oxygen transport mechanism
  • 10.3.2 Hydrogen transport mechanism
  • 10.4 Performance of perovskite membranes
  • 10.5 Perovskite MRs
  • 10.5.1 Applications of perovskite MRs
  • Partial oxidation of methane
  • Oxidative coupling of methane
  • Oxidative dehydrogenation of alkanes
  • Decomposition of H2O, NOx, and CO2
  • Methane coupling
  • 10.6 Conclusion and future trends
  • Acronyms
  • References

Inspec keywords: membranes; chemical equilibrium; chemical engineering; chemical reactors

Other keywords: nonoxidative reactions; membrane reactor technology; chemical process intensification; perovskite membrane reactors

Subjects: Film and membrane processes; ion exchange; dialysis; osmosis, electro-osmosis; Production equipment; Industrial processes; Physical chemistry aspects of chemical technology; Chemical industry

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