Intensified Isothermal Reactor for Methanol Synthesis

Abstract

Methanol is a key platform chemical and potential hydrogen carrier, and improving the efficiency of methanol synthesis reactors is a significant challenge in chemical process intensification. This study investigates the performance of different tubular reactor designs for methanol synthesis using validated computational fluid dynamics (CFD) simulations and experimental measurements.

The research examines the effects of various parameters—reactor geometries, coolant temperature, feed temperature, inlet composition, and flow rate—on methanol yield and heat transfer performance. A key innovation is the proposal and evaluation of new reactor designs incorporating metal inserts aimed at improving methanol yield through simple retrofitting of existing equipment. The metal inserts relocate catalyst particles closer to the cooling surface, achieving near-isothermal operating conditions in both tube-cooled and tubular reactor configurations. The use of metal inserts resulted in significant yield improvements: methanol yield increased by an average of 36% in tube-cooled reactors and 27% in tubular reactors across the range of space velocity studied. These results demonstrate that metal insert technology represents a practical and effective approach to process intensification in methanol synthesis without requiring complete reactor replacement.

@article{redondo2019intensified,
  title         = {Intensified Isothermal Reactor for Methanol Synthesis},
  author        = {Redondo, Ben and Shah, Milinkumar T and Pareek, Vishnu K and Utikar,
                  Ranjeet P and Webley, Paul A and Patel, Jim and Lee, Woo Jin and Bhatelia, Tejas},
  year          = 2019,
  journal       = {Chemical Engineering and Processing - Process Intensification},
  publisher     = {Elsevier},
  volume        = 143,
  pages         = 107606,
  doi           = {10.1016/j.cep.2019.107606}
}