Thermal Behavior and Hydrogen Production of Methanol Autothermal Reforming Performed Using Oxygen Enrichment and Cu/ZnO/Al2O3/Cr2O3/CeO2 Catalyst

Abstract

A fixed-bed reactor designed for the autothermal reforming (ATR) of methanol under adiabatic conditions was constructed to experimentally determine the profile of temperature and catalyst activity generated using the Cu/ZnO/Al2O3/Cr2O3/CeO2 catalyst. The effect of oxygen enrichment in this experiment was investigated, and the experimental results showed that an increase in oxygen concentration correlated with an increase in the temperature of the catalytic bed; by contrast, this increase in oxygen concentration resulted in a reduction of the startup time of the catalyst. Moreover, the reaction temperature was determined to vary with the position within the catalytic fixed bed.

Cu/ZnO/Al2O3/Cr2O3/CeO2 Catalyst for Hydrogen Production by Oxidative Methanol Reforming via Washcoat Catalyst Preparation in Microchannel Reactor

“…This mixture (water, methanol and air) was then heated to evaporate to the gas phase after passing through an evaporator. All runs were conducted at an atmospheric pressure and at a selected temperature of 200 o C. The reactive tube from the outlet of the reactor was also heated with electric heating tape to prevent condensation of the compounds in the gas [8,9]. The mixture gas was carried to a microchannel reactor by 20 (sccm) air flow, and the weight hourly spaced velocity (WHSV) operated at 6.22 h -1 .…”

“…The preparation of catalysts was reported in our previous study [7,8,9]. Catalyst-precursor solutions were prepared by adding Cu(NO3)2.2.5H2O(s) (11.7 g), Zn(NO3)2.6H2O(s) (11.7 g), Al(NO3)3.9H2O(s) (2.56 g), C r ( N O 3 ) 2 .…”

“…Column: 7HK-G013-22 ZB-WAX, Length 30 m, I.D. 0.53 mm, film 1 μm and temperature range of 45 o C to 75 o C. The sample was withdrawn at a selected time interval of 1 h [8,9].…”

Preface, BCREC Vol. 10 No. 2 Year 2015

“…Article focused on thermal behavior and hydrogen production of methanol autothermal reforming performed using oxygen enrichment and Cu/ZnO/Al2O3/Cr2O3/CeO2 catalyst was highlighted by Lesmana and Wu [9]. A fixed-bed reactor designed for the autothermal reforming (ATR) of methanol under adiabatic conditions was constructed to experimentally determine the profile of temperature and catalyst activity generated using the Cu/ZnO/Al2O3/Cr2O3/CeO2 catalyst.…”