Optimization of Ni/ZrO2 catalytic performance in thermochemical cellulose conversion for enhanced hydrogen production

Influence of Ni catalyst support on the product distribution of cellulose fast pyrolysis vapors upgrading

“…Furthermore, the effect of CaO addition and type of ZrO 2 preparation method has been studied. This is a continuation of the earlier investigation devoted to the application of similar systems to the slow pyrolysis conducted in order to obtain hydrogen rich gas [23,24]. In the present case the main attention is paid on the http://dx.doi.org/10.1016/j.jaap.2015.03.011 0165-2370/© 2015 Elsevier B.V. All rights reserved.…”

Hydrogen production from biomass woodchips using Ni/CaO–ZrO2 catalysts

“…The literature data shows that they can also exhibit high activity in steam reforming [7], CH 4 -CO 2 reforming [8] and methanation [9]. Our earlier investigations revealed [10] that the Ni/ZrO 2 catalyst is particularly active and selective in the production of hydrogen rich gas from cellulose. One of the main problems associated with the nickel catalyst is its deactivation via carbon deposition [11].…”

Effect of alkali and alkaline earth metals addition on Ni/ZrO2 catalyst activity in cellulose conversion

“…However, it is known that the catalytic activity and deactivation rate of Ni catalysts in the pyrolysis or gasification of lignocelluloses strongly depend on the presence and type of the applied support [12]. The results of our earlier investigations demonstrated that the use of zirconia, due to its high thermal and coking resistance, allowed to prepare the most active Ni catalyst in the cellulose conversion process [14]. However, it was shown that the presence of alkali and alkaline earth metals has also a positive effect on the performance of nickel catalyst, which is connected with their ability to adsorb CO 2 formed in the high-temperature conversion of biomass and control of acid-base properties of the catalyst surface [15].…”