Issue 8, 2019

3D-printed monolithic SiCN ceramic microreactors from a photocurable preceramic resin for the high temperature ammonia cracking process

Abstract

This research describes a 3D-printed SiC-based ceramic microreactor for ammonia cracking, for hydrogen production, at high temperature, which reveals its robust sustainability for highly corrosive chemical processes. This research reports the fabrication of fully dense 3D-printed SiCN ceramic monoliths with various shapes and structures via pyrolysis at 1000 °C of the green bodies derived from a photocurable preceramic composite resin containing 10 wt% of silica nanoparticle filler as a ceramic precursor. Upon the pyrolytic conversion to the ceramic dense structures, the polymeric features on a scale of several centimeters retained their shapes with no deformation and no cracks owing to uniform isotropic shrinkage and relatively low weight loss. With the well-defined ceramic microreactor, ammonia cracking for hydrogen production was conducted from 600 to 1000 °C at different flow rates and showed high conversion rates up to 99%. The ceramic microreactor showed excellent heat tolerance and chemical resistance. The combination of preceramic resin and additive manufacturing technology provides breakthrough approaches for complex-shaped and extremely resistant non-oxide ceramic systems.

Graphical abstract: 3D-printed monolithic SiCN ceramic microreactors from a photocurable preceramic resin for the high temperature ammonia cracking process

Supplementary files

Article information

Article type
Communication
Submitted
22 May 2019
Accepted
14 Jun 2019
First published
15 Jun 2019

React. Chem. Eng., 2019,4, 1393-1399

3D-printed monolithic SiCN ceramic microreactors from a photocurable preceramic resin for the high temperature ammonia cracking process

K. Gyak, N. K. Vishwakarma, Y. Hwang, J. Kim, H. Yun and D. Kim, React. Chem. Eng., 2019, 4, 1393 DOI: 10.1039/C9RE00201D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements