Next Article in Journal
Perovskite Electrocatalysts for the Oxygen Reduction Reaction in Alkaline Media
Next Article in Special Issue
Development of Active and Stable Low Nickel Content Catalysts for Dry Reforming of Methane
Previous Article in Journal
Effect of Citric Acid on MoO3/Al2O3 Catalysts for Sulfur-Resistant Methanation
Previous Article in Special Issue
Methanol Steam Reforming: Na Doping of Pt/YSZ Provides Fine Tuning of Selectivity
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Catalysts 2017, 7(5), 152; doi:10.3390/catal7050152

Methanation of CO2 on Ni/Al2O3 in a Structured Fixed-Bed Reactor—A Scale-Up Study

Leibniz-Institut für Katalyse e.V., Albert-Einstein-Str. 29a, 18059 Rostock, Germany
*
Author to whom correspondence should be addressed.
Academic Editor: Morris D. Argyle
Received: 31 March 2017 / Revised: 24 April 2017 / Accepted: 4 May 2017 / Published: 15 May 2017
View Full-Text   |   Download PDF [9418 KB, uploaded 15 May 2017]   |  

Abstract

Due to the ongoing change of energy supply, the availability of a reliable high-capacity storage technology becomes increasingly important. While conventional large-scale facilities are either limited in capacity respective supply time or their extension potential is little (e.g., pumped storage power stations), decentralized units could contribute to energy transition. The concepts of PtX (power-to-X) storage technologies and in particular PtG (power-to-gas) aim at fixation of electric power in chemical compounds. CO2 hydrogenation (methanation) is the foundation of the PtG idea as H2 (via electrolysis) and CO2 are easily accessible. Methane produced in this way, often called substitute natural gas (SNG), is a promising solution since it can be stored in the existing gas grid, tanks or underground cavern storages. Methanation is characterized by a strong exothermic heat of reaction which has to be handled safely. This work aims at getting rid of extreme temperature hot-spots in a tube reactor by configuring the catalyst bed structure. Proof of concept studies began with a small tube reactor (V = 12.5 cm3) with a commercial 18 wt % Ni/Al2O3 catalyst. Later, a double-jacket tube reactor was built (V = 452 cm3), reaching a production rate of 50 L/h SNG. The proposed approach not only improves the heat management and process safety, but also increases the specific productivity and stability of the catalyst remarkably. View Full-Text
Keywords: methanation; PtG; SNG; Ni/Al2O3 methanation; PtG; SNG; Ni/Al2O3
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Türks, D.; Mena, H.; Armbruster, U.; Martin, A. Methanation of CO2 on Ni/Al2O3 in a Structured Fixed-Bed Reactor—A Scale-Up Study. Catalysts 2017, 7, 152.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Catalysts EISSN 2073-4344 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top