Production of Hydrogen-Rich Gas by Oxidative Steam Reforming of Dimethoxymethane over CuO-CeO2/γ-Al2O3 Catalyst

Sukhe Badmaev,Vladimir Sobyanin

doi:10.3390/en13143684

Abstract

The catalytic properties of CuO-CeO2 supported on alumina for the oxidative steam reforming (OSR) of dimethoxymethane (DMM) to hydrogen-rich gas in a tubular fixed bed reactor were studied. The CuO-CeO2/γ-Al2O3 catalyst provided complete DMM conversion and hydrogen productivity > 10 L h−1 gcat−1 at 280 °C, GHSV (gas hourly space velocity) = 15,000 h−1 and DMM:O2:H2O:N2 = 10:2.5:40:47.5 vol.%. Comparative studies showed that DMM OSR exceeded DMM steam reforming (SR) and DMM partial oxidation (PO) in terms of hydrogen productivity. Thus, the outcomes of lab-scale catalytic experiments show high promise of DMM oxidative steam reforming to produce hydrogen-rich gas for fuel cell feeding.

Highlights

Growing worldwide concerns about the increase in greenhouse gas emission and local environmental pollution have stimulated active research and development in fuel cell technology in the past decades [1]
Using the CuO-CeO2 /γ-Al2 O3 catalyst, the feasibility of hydrogen production by partial oxidation and oxidative steam reforming of DMM was shown for the first time
Using the СuO-CeO2/γ-Al2O3 catalyst, the feasibility of hydrogen production by partial oxidation and oxidative steam reforming of DMM was shown for the first time

Summary

Introduction

Growing worldwide concerns about the increase in greenhouse gas emission and local environmental pollution have stimulated active research and development in fuel cell technology in the past decades [1]. Fuel cells are fed by hydrogen or hydrogen-containing gas produced by the catalytic conversion of various hydrocarbons and oxygenates [3,4,5]. Dimethoxymethane (DMM) has been declared as a promising environmentally safe raw material for hydrogen production for fuel cell feeding [6,7,8,9,10,11,12,13,14,15,16]. It is worth noting that DMM synthesis using renewable feedstocks—namely, CO2 produced from biomass and hydrogen generated by water electrolysis—is currently under development [19]. Since DMM is a relatively inert (non-corrosive and non-toxic) liquid compound, it can be handled, stored and transported

Methods

Results

Conclusion